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Browsing by discipline "Psykologi"

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  • Solén, Taiga (2015)
    When studying hypnosis, it often needs to be known whether the subjects are hypnotizable or not. Hypnotizability can be predicted by suggestibility, which in turn can be estimated with various scales. Different scales yield different estimates of suggestibility. This creates a risk of incorrect comparison of the scores. The comparability of the Harvard Group Scale of Hypnotic Susceptibility (HGSHS:A) and Waterloo-Stanford Group Scale of Hypnotic Susceptibility (WSGC) has not been studied much. Suggestibility is sometimes measured repeatedly with different scales and the order of their administration can affect the scores. This effect has not been studied on the HGSHS:A and the WSGC. This study aims to analyze whether 1) the scores yielded by these scales are affected by the order of their administration, 2) the scores are comparable and 3) corresponding suggestions and types of suggestions are passed equally often. It is expected that the order of administration does affect the scores and even more so for HGSHS:A, 2) the HGSHS:A score is higher than the WSGC and 3) the corresponding suggestions are not passed equally often. 58 subjects were studied, (67% female, 33% male). Both scales were administered to each subject. Half of the subjects were first administered the HGSHS:A and the other half the WSGC. The order of administration did affect the HGSHS:A score but not the WSGC. The hypothesis of the HGSHS:A score being higher was confirmed and the comparability of the scores proved to be less than desirable. There were no significant differences between passing the corresponding suggestions. These results imply that repeated testing might be futile if the right scale is chosen. It is recommended to use the WSGC even for subjects with not former experience of hypnosis. Alternatively, certain suggestions could be used separately to overcome the problems related to the common scales. Specific suggestions are recommended for assessing certain types of suggestibility. Furthermore, a summary of what to take into account when assessing the comparability of different studies is provided.
  • Finskas, Anna-Maria (2016)
    The purpose of this study was to find out whether the values of Finns with children differ from the values of Finns with no children. The data consisted of a Finnish sample of European Social Survey during the years 2002-2012, including Schwart's Human Values Scale with 21 sections measuring the ten distinct values. From the ten values was then further calculated the two distinct value dimensions "self-transcendence" and "conservation". Having children was positively related to conservation values. Especially among younger participants having children was related to higher conservation compared to young participants with no children. Participants under 30 years of age valued self-transcendence more than participants of the same age group with no children. Finns with children valued benevolence, conformity, tradition and security more than those with no children. Finns with no children valued self-direction, stimulation and hedonism values more than those with children. Being a parent was related to the values that aim for corporate goals. On the other hand, Finns with no children appreciated values that enhance the goals of oneself. For a young parent it is helpful to be aware of his/her goals and values, but also of the expectations and values of the environment. More research on the topic is needed to better understand the changes and challenges regarding parenthood and to develop best possible ways of support for families that are facing a new life situation.
  • Perhoniemi, Riku (2005)
    The study examined immigrants' attitudes towards acculturation, in other words the social and cultural changes that take place in the adaptation process. The perspective of acculturation studies was also expanded by examining immigrants' cultural values and their experiences of majority's expectations. In addition, special interest was directed to the relations between acculturation attitudes and values and both factors' relevance on psychological well-being. Indian born immigrants were selected as subjects as they are one of the fastest growing ethnic minorities in Finland. This minority has not been included in immigration studies previously. The seventy-five immigrants that participated as subjects represent a highly educated subgroup of Indian born immigrants. The study was carried out with posted questionnaires. Most of the subjects received an inquiry of their motivation to participate by e-mail or phone before the postal questionnaire. The results were in line with previous studies in Finland as the attitudes emphasising cultural integration were dominant. However, attitudes towards marriage, reflecting deeper and less flexible parts of culture, were dominated by separation motives. Immigrants' perceptions of majority's expectations reflected partly the real assimilation wishes demonstrated in previous studies. Against hypotheses, discrepancies between acculturation attitudes and experiences of majority's expectations did not predict immigrants' psychological well-being in a clear way. The highly educated Indian born immigrants emphasised self-direction and universalism in their values. This separates them from the traditional cultural values of India. The hypotheses made of the predictive relations between values and acculturation attitudes were partly confirmed. Also, the assumptions concerning both the stress buffering role of collectivistic values and the positive effect of achievement values on feelings of mastery were confirmed. Despite the limitations in the data, this study strengthens the view that cultural and personal values play a significant role in immigrants' adaptation process. Information about values can benefit individuals making hard decisions and coping with cultural change as well as officials modifying Finnish immigration policy and planning the support system for immigrants.
  • Laakso, Hanna (2015)
    Objective: Cognitive impairment as a consequence of a stroke is common. Advanced age increases the frequency of poststroke cognitive deficits. Particularly executive dysfunction has an important role in poststroke disability. Complex by their nature, however, measuring executive function is difficult. The Hayling test, Design fluency task and Questioning task are some of the less common assessment methods of executive functions, and thus, they are not widely studied. The aim of the present study was to assess the feasibility of these tests in elderly patients three months after ischemic stroke. Performances on these tests were compared to conventional assessment methods of executive functions, and their predictive value on functional disability in follow-up was examined. Methods: 62 stroke patients and 39 control subjects, aged 55-85, underwent comprehensive neurological and neuropsychological examinations three months after the index stroke. Executive functions were studied with the Trail Making test, Stroop test, Wisconsin card sorting test, Verbal fluency task as well as with the Hayling test, Design fluency task and Questioning task. The modified Rankin Scale (mRS) and the Lawton's Instrumental activities of daily living -scale (IADL) were used to assess functional abilities at three months, and the mRS after 15 months follow-up. Results and conclusions: The Hayling test and Questioning task and the four conventional tests of executive functions differentiated stroke patients from healthy controls. Furthermore, the executive functions predicted functional dependence in the elderly stroke patients. The Hayling test was most consistently associated with functional disability as evaluated with mRS and IADL three months after the stroke, and predicted functional disability as evaluated with mRS at 15 months follow-up. Of all executive functions tests, the Hayling test proved to be the most constant predictor of functional abilities in elderly stroke patients. However, there is no golden standard for measuring executive functions, and in the future, more sensitive methods are needed. Nevertheless, the present study confirms the importance of assessing executive functions in clinical populations, when predicting functional disability even in the long-term.
  • Komulainen, Kaisla (2015)
    Adolescent delinquency is a prevalent concern, which carries with psychological and societal costs. Deviant peer affiliation and criminogenic attitudes, as well as personality traits are known to be associated with delinquency, but their interlinked effects are less studied. The present study examines the role of personality in a deviant socialization context. Specifically, I examine whether peer deviance and criminogenic attitudes (1) mediate and/or (2) moderate the associations of the Five-Factor Model personality traits with delinquency. The data included respondents (n=4855) to the cross-sectional Finnish Self-Report Delinquency Study 2012, aged 14-17 years. Delinquency was assessed on the basis of 17 different deviant behaviors; the reported frequencies of engaging in each of them were scaled using a graded response model. Peer deviance and criminogenic attitudes were assessed via respondents' selfreports; two distinct attitudinal indicators (deviant and neutralizing attitudes) were included. Personality was assessed with a 15-item BFI-S questionnaire. A structural equation model was conducted to examine the mediation pathways. The moderation effects were examined with linear regression analysis. Delinquency was associated with higher extraversion, lower agreeableness, lower conscientiousness, and lower neuroticism. Peer deviance and criminogenic attitudes partially mediated the associations of extraversion, agreeableness, and conscientiousness with delinquency. The association between neuroticism and delinquency was fully mediated via criminogenic attitudes. Peer deviance strengthened the associations of low neuroticism, low agreeableness, and low conscientiousness with delinquency. Deviant and neutralizing attitudes strengthened the associations of high extraversion and low agreeableness with delinquent conduct. The findings suggest that personality may provide novel insights into the etiology of delinquency in a context of deviant socialization. Implications of the personality-based approach and directions for further research are discussed.
  • Martikainen, Silja (2010)
    This thesis examines the associations between personality traits and sleep quantity and quality in young adults. Additionally the possible effects of birth status on these associations are examined. The data used in this thesis is part of a birth cohort study (Helsinki Study of Very Low Birth Weight Adults). The personality traits are based on the five-factor model of personality. The sleep quantity and quality are based on actigraphy assessments. Four hypothesis were made about the personality and sleep associations: (1) neuroticism is related to a lesser quality of sleep, (2) there will be more significant associations between personality traits and sleep quality than between personality traits and sleep quantity, (3) the Very Low Birth Weight (VLBW) as well as, (4) the Small for Gestational Age (SGA) status will affect the associations. Linear regressions were used to study the associations between personality traits and sleep quality and quantity. Whenever an association was significant, it was tested whether this association was moderated first, by the VLBW and second, by the SGA status of the participant. The results were mostly in line with previous research especially demonstrating the negative association between neuroticism and the quality of sleep and suggesting that vulnerability to stress decreases sleep quality. Also it was found that agreeableness and conscientiousness were associated with better sleep quality and extraversion was associated with lower sleep quantity. In addition SGA status moderated the personality and sleep associations. It is proposed that there are two factors behind the interaction. First, prenatally developing mechanisms have an effect on the development of sleep as well as personality. Second, differences in the postnatal environment, for instance the parenting practices, can account for this finding. Future research could focus especially on what kind of prenatal disturbances SGA infants have in the development of mechanisms related to sleep and personality. Also focusing on the differences in parental interaction might shed more light on the results.
  • Ehrnrooth, Anna (2016)
    Goals As the proportion of the elderly population increases, studying biomarkers of cellular aging have become an important focus of research. However, these risk factors of age-related diseases have been difficult to identify. Recently an estimator of cellular aging, based on DNA methylation levels, the DNAm age, has been developed, and it has been linked to risk for both greater mortality and physical and mental health diseases. Effects of early life stress and later health on DNAm age have not yet been studied together. We set out to study, if early life stress and later quality of life and depression each separately or in combination associate with DNAm age. Methods The participants comprised Finnish males, of which 83 were separated from their families during the World War 2, and 83 non-separated controls belonging to the Helsinki Birth Cohort Study. Genome-wide methylation profiles, Rand-36 quality of life and BDI-1 depression inventory were assessed during years 2001-2004. DNAm age was estimated using the Horvath procedure. Associations of separation status, Rand-36 scores and BDI scores on DNAm age were studied with linear regression after adjusting for chronological age, cell type counts, tobacco smoking and frequency of alcohol consumption. Results and conclusions The separation status did not associate with the DNAm age. The Rand-36 Bodily Pain –scale associated differently with DNAm age in the separated group compared to the non-separated group. In analyses stratified for separation status, mild-severe depressive symptoms associated with lower DNAm age in the separated group. Similarly, lower quality of life on Rand-36 Role Functioning-scale and Emotional and Role Functioning Physical -scale associated with lower DNAm age in the separated group. Results are in line with previous studies, which have shown that early life stress doesn't associate with the DNAm age, but the cumulative total life stress and later adulthood diseases do associate with the DNAm age. This study brings novel information of the associations of early life stress and later depression symptomatology and psychosocial quality of life on the DNAm age, and suggests the early life stress and later depression and poorer psychosocial quality of life to have a cumulative effect on the DNAm age. More studies and longitudinal follow-up is needed to clarify the role of DNAm age as a biomarker of cellular aging, especially when examining the effects of early life stress exposure and later health together.
  • Mikkola, Katri (2016)
    Attention-deficit/hyperactivity disorder (ADHD) is a pervasive neurodevelopmental disorder of executive functions, which affects the social, occupational, educational, and personal life of the individuals concerned. The main characteristics of this disorder are age inappropriate inattention, impulsivity and hyperactivity. The research on adult ADHD is still scarce, especially concerning the neural networks of attention. Childhood ADHD has been associated with impairment in two of the attentional network subsystems alerting and executive control, leaving the third subsystem, orienting of attention, intact. Research on adult ADHD and the subsystems of attentional network is contradicting. The aim of this study was to investigate neural activation of these attentional networks during highly demanding attentional tasks in adults with ADHD. The first hypothesis was that the ADHD group have decreased activity in the frontoparietal network during orienting of attention in contrast to the control group. The second hypothesis was that the ADHD group have decreased activity in the dorsolateral prefrontal cortex, anterior cingulate gyrus, and precuneus during divided attention in contrast to the control group. Both the ADHD group and the control group included 16 participants, aged 25 – 56 across all participants, whose brain activation was measured with functional magnetic resonance imaging during the attentional tasks. The tasks included divided and selective attention. Both conditions included task-irrelevant novel distractors. The results supported both hypotheses. The ADHD group had decreased brain activity in the frontoparietal network during top-down controlled and bottom-up triggered attention. Decreased activation in the dorsolateral prefrontal cortex, anterior cingulate gyrus and precuneus was observed during divided attention in the ADHD group. Furthermore, the default-mode network was hyperactivated in the ADHD group. Activation of this network has been related to increasing task demands and failure of maintaining an alert state. Thus, adult ADHD seems to associate with abnormally functioning attention networks. Moreover, the results indicated that in addition to dysfunctional alerting and executive control, adults with ADHD have also impaired orienting of attention. These dysfunctional attentional networks may have a connection with the inattentive symptoms of adult ADHD.
  • Salmela, Liisa (2018)
    Aims of the study. Earlier studies focusing on diagnosed autism spectrum disorders have found high prevalence of sleep problems and other psychiatric disorders among adolescents. Moreover, subclinical variation of autistic traits has been shown to be associated with social deficits and psychiatric symptoms. However, little is known about the possible connection between subclinical autistic traits and sleep. This study explores whether adolescents with elevated levels of subclinical autistic traits are at heightened risk for sleep problems. Methods. This study used follow-up data from the GLAKU (Glycyrrhizin in Licorice) cohort study. The sample consisted of 157 (57% girls) 17-year-old adolescents. Autistic traits were assessed using the Autism Spectrum Quotient. The Beck Anxiety Inventory, Beck Depression Inventory and Adult ADHD Self-Report Scale were utilized to control for comorbid psychiatric symptoms. Sleep was measured using actigraphs. Associations between autistic traits and sleep were examined using logistic regression analysis. Results and conclusions. Elevated levels of autistic traits were significantly associated with shorter weekday sleep duration. Moreover, autistic traits remained as an independent predictor of short sleep duration when comorbid psychiatric symptoms were controlled for. Risk for short sleep duration was more pronounced among boys. The results suggest that subclinical autistic traits should be considered as a possible underlying mechanism affecting adolescent sleep.
  • Jouhki, Virpi (2015)
    Goals. Juvenile delinquency has inspired many different theories on the causes of crime. At this moment, there is enough evidence to believe that there are at least two subgroups of juveniles, with different developmental pathways to criminal involvement. In the field of criminology there has been concern on the pattern of criminal offending which has lead to hypothesis regarding offence specialization versus versatility. Majority of research conducted to this day suggest that juveniles are versatile offenders who engage in all types of criminal or antisocial behaviors. However, the developmental view anticipate different pattern of offending for different subgroups of delinquent youths. This study focuses on individual differences in crime according to Big Five personality traits. The Big Five has been used in several studies of crime and personality and the relationship between them has been well documented. However, little is known how personality traits are related to different types of crime. The purpose of this study is to explore how personality traits are related to different types of crime and furthermore are there differences in offence specialization versus versatility according to personality traits. Methods. This study employs the data from the nationwide survey on youth crime and victimization conducted by the National Research Institute of Legal Policy. A total of 4855 ninth grade students completed a self-report survey questionnaire. The BFI-S (Big Five inventory short) personality instrument was used to measure personality traits. This study investigates personality traits in relation to four crime types: 1) property offences, 2) theft, 3) violence and 4) alcohol and drug use. Structural equation modeling (SEM) was used to explore whether the versatility hypothesis of criminal acts holds true according to personality traits. Results and conclusions. Conscientiousness, agreeableness and extraversion were found to be associated with crime among students, which was in line with the previous research. In addition, the result suggested that personality traits are differently linked to different types of crime. Risk for engaging in alcohol and drug use was characterized by high extraversion and low conscientiousness whereas low agreeableness was found to increase the risk for violent offending. Theoretically the results of this study are interpreted as a counter evidence for versatility hypothesis on the nature of juvenile delinquency, even though no direct evidence for the offence specialization was found. Still, juvenile delinquency might not be as versatile behavior as it has been considered but moreover, individuals with different personality characteristics may be prone towards different types of delinquent acts. The role of violence as the most "pathological" form of antisocial behavior is discussed in relation of previous theory and research as well as the findings of this study.
  • Lindgren, Sofia (2015)
    Goals. Bullying is a fairly common phenomenon and is known to cause major psychological distress on its victims. The negative effects of bullying are often long lasting, which is why early interventions are important. Understanding the factors behind bullying can help us learn more about it and thus find better ways of intervening. One factor that is known to affect bullying is personality. The goal of this study is to examine the link between Big Five personality traits and becoming the victim of bullying. On basis of previous research, it was assumed that lower conscientiousness, agreeableness and extraversion and higher neuroticism would lead to a higher risk of being bullied. The role of openness was ambiguous. Also the effect of parental supervision, school performance and time spent with friends were examined. Methods. This study employs the data from the nationwide survey on youth crime and victimization conducted by the national research institute of legal policy in 2012. The sample frame of the survey was Finnish-speaking primary and secondary schools. A total of 8914 sixth and ninth grade students completed a self-report survey questionnaire in school. 14.9 % of the students reported being bullied at least once during the previous year. Multinomial regression analysis was used to explore the relationship between personality traits, parental supervision, time spent with friends, school performance and bullying. Interaction analyses between personality traits and the moderators were also conducted. Results and conclusions. The result of this study suggest that students who score lower on extroversion, conscientiousness, parental supervision and school performance and higher on openness and neuroticism are more likely than other students to be bullied. There was no statistically significant relation between bullying and openness or time spent with friends. The risk between bullying and extroversion was especially high when combined with lower parental supervision, school performance and a higher level of time spent with friends. The risk between bullying and neuroticism was higher when combined with lower school performance and a higher level of time spent with friends. Openness was a risk factor especially when combined with lower levels of parental supervision and school performance. The results show that personality traits as well as other, more social factors such as parental supervision, can have a significant impact on bullying. Parental supervision is something that, unlike personality traits, can be more easily altered, which is why giving parents more information about the effects of parental supervision on bullying is important. Although this study focused on the victim's traits, it is important to stress that the idea is not to blame the victim. The goal of this study was to get a better understanding of the factors that increase a child's risk for victimization and use this knowledge to design better interventions for bullying and perhaps peer victimization in general.
  • Aronen, Aino (2015)
    The purpose of the study was to examine the associations between the Big Five personality traits (neuroticism, extroversion, conscientiousness, openness to experience and agreeableness) and insomnia symptoms. The insomnia symptoms were difficulties to initiate sleep, awakenings during sleep, waking up too early and feeling tired after a night's sleep. According to theories on insomnia and to empirical research, high neuroticism, low extroversion, low conscientiousness and low agreeableness may be associated with insomnia. In empirical research, high neuroticism has consistently been associated with insomnia but also low extraversion, low conscientiousness and low agreeableness have been associated with it. It was therefore hypothesized that high neuroticism, low extraversion, low conscientiousness and low agreeableness are associated with insomnia symptoms. The participants, aged 30-45, were derived from the Young Finns study. The sample size was 1708. The Big Five personality traits were assessed with the NEO-FFI measure and insomnia symptoms with Jenkins's sleep problems scale. Ordinal regressions were used in analyzing the data. All of the Big Five personality traits were associated with at least some of the insomnia symptoms. In general, high neuroticism and high openness to experience were associated with more insomnia symptoms, whereas low extroversion, low conscientiousness and low agreeableness were associated with better sleep. High neuroticism had the strongest associations with most of the insomnia symptoms. When it comes to the trait openness to experience, the results of this study were inconsistent with previous studies, and therefore more information on the subject would be needed. The results of this study could be used in planning interventions for insomnia sufferers.
  • Mrena, Maria Kristiina (2014)
    Objectives – The objective of this study was to examine whether there is a connection between the Big Five personality traits and the metabolic syndrome (MetS) in Finnish adults. The MetS is a rapidly increasing syndrome among the Finnish population, which predisposes to type 2 diabetes and cardiac diseases. Previous research suggests that single personality traits may be connected to the MetS and its risk factors. However, only a few studies have examined theoretically well based personality models in relation to the MetS. Identifying the psychosocial risk factors for the MetS is important in predicting and preventing its occurrence. The following hypotheses were made based on previous research: (1) high neuroticism and (2) low agreeableness are positively associated with the MetS. Methods – This is a cross-sectional study of The Cardiovascular Risk in Young Finns Study from the year 2007. There were 1 580 Finnish adults aged 30–45 participating in the study, of which 919 were women and 661 were men. The participants answered a personality questionnaire, the Finnish version of the NEO-FFI (Neuroticism, Extraversion, Openness, Five-Factor Inventory), which measured the Big Five personality traits (neuroticism, extraversion, agreeableness, conscientiousness, and openness). The MetS is diagnosed when at least three of the following five factors are present: (1) central obesity, (2) raised fasting glucose, (3) raised triglycerides, (4) lowered high-density lipoprotein cholesterol, and (5) hypertension. The associations between personality traits and the MetS were examined using logistic regression analyses. Results and Conclusions – In men, low agreeableness was statistically significantly associated with higher risk of having the MetS (OR=.70, 95 % CI=.57–.87, p=.001), adjusting for age and level of education. There were no statistically significant associations found between any of the personality traits and the MetS in women. On the basis of these results, it can be proposed that men with low agreeableness, that is, men low in cooperation, empathy, and kindness, might comprise a risk group for the MetS. This study was cross-sectional by design, which precludes conclusions about cause and effect relationships. Mechanisms linking personality to the MetS were not examined in the current study, and thus, future research should examine the direction of the associations and the mechanisms linking such associations.
  • Immonen, Satu (2016)
    Objectives: The present study examines everyday executive functioning in adults who have had perinatal risks related ADHD in childhood. ADHD symptoms often persist from childhood to adulthood but the long-term developmental course of ADHD beyond young adulthood is still poorly understood. The present study focuses on adults around 40 years of age who have had perinatal risk factors with subsequent onset of ADHD in childhood. The present study may advance understanding of the long-term impact of perinatal risks and childhood ADHD in adulthood. Methods: The present study is part of a larger longitudinal birth cohort research project examining long-term effects of perinatal risk factors. The cohort has been followed since 1970's. The present sample includes individuals with perinatal risks associated childhood ADHD (n = 32), individuals with perinatal risk factors without childhood ADHD (n = 158) and control individuals without perinatal risks or childhood ADHD (n = 38). Experienced everyday executive functioning was compared between these three groups using Behavior Rating Inventory of Executive Functioning – Adult Version (BRIEF-A). Executive functioning was compared between the three groups using analysis of variance (ANOVAs) and non-paramentric Kruskal-Wallis test. Results and conclusions: Adults with perinatal risks related childhood ADHD reported more cognitive and behavioral executive difficulties than control adults or adults with perinatal risks without childhood ADHD. The group with perinatal risks related childhood ADHD reported executive difficulties in domains of working memory, planning, inhibition and self-monitoring. Executive problems were mild in group level, although a small proportion reported more severe clinically significant dysfunction. Adults with perinatal risks but without childhood ADHD did not differ from controls in experienced executive functioning which suggests that perinatal risks alone without early ADHD symptoms do not affect executive functioning in adulthood. It appears that childhood ADHD with perceding perinatal risk factors can have long-term but mostly mild consequences for daily executive functioning extending to mid-adulthood.
  • Tapola, Lauri (2008)
    The temperamental traits of Cloninger's personality theory (novelty seeking, harm avoidance, reward dependence and persistence) reflect independent systems of central nervous system deciding responses toward new, rewarding and aversive stimuli. Thus, certain temperamental traits and their combinations may predispose to heavy drinking and alcohol dependence. Hence, the aim of the present study was to investigate associations between temperamental traits and the amount of alcohol consumption, frequency of heavy drinking and the maximum number of drinks per occasion. In this study, we investigated also whether these associations are only confounded by between-family differences in genetic and environmental factors. Furthermore the associations between temperamental trait combinations that reflect Cloninger's typology of alcoholism and alcohol use were studied. The subjects (n=401) in the current study were a group of FinnTwin16 study participators, Finnish twins born in 1974-79. Temperament was measured with TCI-R (Temperament and Character Inventory-Revised) a self-report form. The amount of alcohol consumption was asked by Semi-structured interview (Semi-Structured Assessment of Genetics of Alcoholism = SSAGA). The frequency of heavy drinking and maximum number of drinks per occasion were asked by mail form. In accordance with previous studies, novelty seeking had a positive relationship with the amount of alcohol consumption, frequency of heavy drinking and the maximum number of drinks per occasion in both genders. In this study, the association was proven independent of between-family differences in genetic and environmental factors that are associated to both novelty seeking and alcohol use. Surprisingly, reward dependence was negatively related to the maximum number of drinks per occasion in both genders. Persistence had a weak positive relationship with maximum number of drinks per occasion in men. The temperamental trait combinations that reflect Cloninger's typology of alcoholism did not differ from the other combinations in regard to alcohol use as hypothesized. The results confirm the previous finding about the relationship between novelty seeking and alcohol use. Support for Cloninger's typology of alcoholism in regard to combinations of temperamental trait was not achieved in this study.
  • Järvisaari, Jutta (2017)
    Objective: Cardiovascular disease is one of the leading causes of death in the world and elevated blood pressure is one of the major risk factors for cardiovascular disease. Health behavior such as alcohol use, smoking and physical activity as well as obesity are known to affect the risk for cardiovascular disease. Also temperament has been shown to be associated with the risk for cardiovascular disease in numerous studies. The exact pathway through which the association between temperament and the risk for cardiovascular disease is mediated is so far unknown. Temperament has been shown to be associated with elevated blood pressure but not much research on the subject has yet been conducted. The aim of this study was to examine if temperament is associated with elevated blood pressure, which factors mediate the association and how they mediate it. Methods: The participants of the study were from The Cardiovascular Risk in Young Finns Study (CRYFS) and the data from the follow-up carried out in 2007. The subjects were divided into groups of elevated blood pressure and normal blood pressure according to their blood pressure levels. Temperament was assessed using a self-report form of the Temperament and Character Inventory (TCI-9) which measures the temperament traits of Cloninger's psychobiological theory - novelty seeking, harm avoidance, reward dependence and persistence. Concerning mediating variables the subjects were asked to answer questions about their alcohol use, smoking and physical activity. Body mass index was calculated from measures of weight and height. Logistic regression and correlation analyses were used for the analyses. Results and conclusions: A high level of reward dependence was related to a lower risk for elevated blood pressure. Two health behavior variables, higher level of alcohol use and greater body mass index were related to an increased risk. A weak association between a higher level of persistence and a lower level of blood pressure was also found. The association between reward dependence and elevated blood pressure showed evidence for being independent of the health behavior variables. Behavioral styles based on temperament are suggested as the mediating mechanism behind the association. For example behavioral styles could affect a person's tendency to seek medical help and health care. The concept of personalized health care expanded with temperament related information should be considered as a valuable potential asset for preventive health care in the future.
  • Napola, Jukka (2015)
    Recent evidence suggests paranormal and religious beliefs may result from cognitive biases that all humans share. People who think in an intuitive manner are supposedly more affected by these biases than analytical people. Consequently, mounting evidence suggests those who endorse intuitive thinking style tend to be more religious and have more paranormal beliefs than people with an analytic thinking style. However, less attention has been paid to people who are highly analytical but nevertheless have supernatural beliefs. Since analytical people should be less susceptible to cognitive biases, other factors such as metacognitive tendencies might account for these beliefs. On the other hand, if intuitive thinking style is a major causal factor behind paranormal beliefs, an intuitive sub-group among sceptics could be considered an anomaly. Metacognitive tendencies could be a potential psychological factor behind scepticism. A sample of nearly 3000 Finnish participants revealed that there was an analytical and intuitive subgroup among the believers and sceptics. Particularly, analytic believers had more cognitive biases and lesser tendency to belief flexibility than analytic sceptics. Intuitive sceptics had more cognitive biases than analytic sceptics but they adhered more to flexible thinking than intuitive believers. The results of this thesis underline the multifarious nature of both paranormal beliefs and thinking styles. Although analytical thinking may help the person to overcome the automatic and often erroneous shortcuts that the mind produces, it may fail to suppress overlearned and reflectively practiced beliefs. On the other hand, an intuitive thinking style and cognitive biases may not necessary lead to paranormal believing, especially if the living environment encourages a sceptic worldview. Future studies should address the mechanisms that lead individuals with similar epistemological tendencies to acquire totally different metaphysical beliefs.
  • Peltonen, Assi (2016)
    Aim. Maternal attachment towards the child starts to form already during pregnancy. It is suggested that antenatal attachment increases during pregnancy and at the end of the pregnancy it is at the highest level. However, longitudinal studies of continuity in antenatal attachment are lacking. The present study aims to investigate the continuity of maternal antenatal attachment during pregnancy, the continuity of attachment from antenatal to postnatal period and the associations of maternal prenatal and postnatal depressive symptoms to both maternal antenatal and postnatal attachment. Methods. The study is part of a larger longitudinal multidisciplinary project called PREDO Project 'Prediction and Prevention of Pre-eclampsia'. The present study sample comprised 3206 singleton mother. Maternal antenatal attachment was assessed with the Maternal Antenatal Attachment Scale (MAAS) filled in at 12 and 26 weeks of gestation and postnatal attachment with the Maternal Postnatal Attachment Scale (MPAS) filled in at six months postpartum. Maternal depressive symptoms were assessed with the Center of Epidemiological Studies Depression Scale completed bi-weekly from 12 to 26 weeks of gestation and six months after the delivery. The regression analysis was used to explore the associations. We adjusted models for demographic factors and maternal depressive symptoms. In addition, the mediating effect of maternal depressive symptoms on the associations between maternal antenatal attachment at 12 and 26 gestational weeks and between antenatal and postnatal attachment were studied with Sobel test. Results and conclusions. Higher level of maternal antenatal attachment at the end of the first trimester was associated with higher level of attachment at the end of the second trimester and at six months after the delivery. The maternal depressive symptoms during and after the pregnancy were negatively associated with maternal antenatal and postnatal attachment. Maternal depressive symptoms mediated the associations between antenatal attachment and between antenatal and postnatal attachment. The results indicate that maternal antenatal attachment starts to form from early on pregnancy. Maternal depressive symptoms are a significant risk-factor for maternal attachment process. Increasing awareness of the importance of enhancing mother-fetal attachment from the beginning of the pregnancy is important because it shows high continuity to the postnatal life.
  • Virtanen, Niia (2016)
    Body consciousness research is a multidisciplinary field including various conceptualizations of its subject. Usually research frames are based on comparisons between bodily experts, such as dancers, or psychiatric groups with bodily aberrations (e.g. eating disorders) and control participants. Methods of body consciousness research include behavioural and self-report measures as well as brain imaging. Some methods have been used to study bodily experts, but not psychiatric groups, and vice versa. In this study, dancers, amateur and professional athletes, and control participants were studied using four behavioural methods (aperture task, endpoint matching, rubber hand illusion, posture copying) and two self-report measures PBCS (Private Body Consciousness Scale of the Body Consciousness Questionnaire) and BAQ (Body Awareness Questionnaire). Because many methods of studying body consciousness focus on the use of hands, a new method called posture copying, involving the whole body, was developed in this study. Dancers succeeded better than controls in the aperture task, and better than athletes and controls in the posture copying task. In the posture copying task, group differences were present in copying all other body parts but hands. Both dancers and athletes scored higher in the BAQ than controls. There was an almost significant difference between athletes and controls in the endpoint matching task. No group differences were found in the rubber hand illusion or PBCS. The results were considered as proof that dancing has a special connection with body consciousness, but that some aspects of body consciousness are similar in dancers and athletes. Methods measuring the same quality of body consciousness produced contradictory evidence, which questions their validity. This study offers useful knowledge for the future of body consciousness research, with regards to choice of participants, methodology, and study design, as well as treatment plans of clinical groups with disorders in their body consciousness (e.g. eating disorders).
  • Hassinen, Katriina (2016)
    Depersonalization refers to the experience of alienation from oneself. It is a common symptom, although not so widely studied in adolescents suffering from mental health problems. Depersonalization is a dissociative symptom, of which a main characteristic is loss of coherence on mental functions. However, compared to more severe forms of dissociation, depersonalization is relatively common also in nonclinical populations. The present study takes a closer look at the comorbid symptoms of adolescents experiencing depersonalization. Is there a connection between depersonalization and psychiatric diagnosis categories, severity of depression or anxiety symptoms, or symptoms associated with risk for psychosis? Based on previous studies, it is expected that mood and anxiety disorders and the severity of depressive symptoms as well as suspiciousness and perceptual abnormalities of the psychosis risk symptoms will be positively correlated with depersonalization. This study is part of the Helsinki Prodromal Study by the National Institute for Health and Welfare. The subjects (N=152) were new patients aged 15-18 in psychiatric treatment with various kinds of mental health problems. They were selected for further assessment after initial screening. Depersonalization was assessed with the Prodromal Questionnaire (PQ) depersonalization factor (Therman et al. 2014). The Structured Clinical Interview for the DSM-IV, Clinical Version (SCID-CV) and medical records were used for the diagnostic assessment. Depressive symptom severity was measured with the Beck Depression Inventory and the Beck Hopelessness Scale and severity of anxiety with the Beck Anxiety Inventory. The severity of psychosis risk symptoms was assessed with the Structured Interview of Prodromal Symptoms (SIPS). Mood disorders were associated with depersonalization as hypothesized. A similar association was not detected for anxiety disorders, though depersonalization was modestly positively correlated with the severity of depressive and anxiety symptoms. All of the positive SIPS-symptoms, especially delusional ideas were correlated with the severity of depersonalization. This was the case also with bizarre thinking, focus and attention problems, decreased experience of emotions and self, dysphoric mood and impaired tolerance to stress. These findings indicate that there are differences in the severity of depersonalization depending on the type of comorbid symptoms. For clinical applicability of the results, further study using more detailed definitions of depersonalization is needed.