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The current study aimed to test sensation seeking as a mediator in the relationship between arousal and aggression. In addition, an experimental design was used to test whether arousal can be manipulated to alter levels of sensation seeking and aggression, both measured behaviorally. A sample of 128 undergraduate students completed state and trait measures of sensation seeking and aggression, and baseline measures of physiology. It was hypothesized that trait sensation seeking would mediate the relationship between baseline physiology and trait aggression. Also, state sensation seeking would mediate the relationship between an arousal manipulation and state aggression. The results failed to support the proposed mediation models. Furthermore, the arousal manipulation was insufficient to result in sustained heart rate differences, and therefore the malleability of state sensation seeking and aggression could not truly be tested. Exploratory analyses supported an interaction between arousal and sensation seeking, such that in individuals low on experience seeking, disinhibition and boredom susceptibility, low heart rate was associated with greater aggression. These findings suggest that arousal and sensation seeking may conjointly predict aggression through moderation rather than mediation, though future studies with improved experimental designs are needed. / Ph. D.

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Augmenting/reducing of the evoked potential has been shown to be related to sensation seeking (SS) and specific clinical disorders. Buchsbaum demonstrated that patients with bipolar affective disorders (BAD) tend to be augmenters, as is the case with sensation seekers, and patients with unipolar affective disorders (UPD) tend to be reducers. In addition, he reported that prophylactic medication reduced the tendency to augment in bipolar patients. However, evidence for these relations is restricted to a few studies. This study explores whether Buchsbaum’s initial findings can be found in a naturalistic clinical setting. Acoustic evoked potentials were recorded for six levels of intensity (59, 71, 79, 88, 92, 96 dB SPL) from 24 healthy adults, 21 unipolar depressed patients, and 21 patients with BAD. Participants also completed personality questionnaires, especially the Sensation Seeking Scales Form V. Results revealed a positive correlation between SS and augmenting/reducing in healthy controls, thereby replicating earlier findings. Bipolar depressed patients showed larger P1/N1 slopes than healthy controls, when medication was statistically controlled. Unipolar depressed patients showed smaller P2 slopes, but only when medication was not controlled. Implications of these results for further research on augmenting/reducing and affective disorders and their relationship to SS are discussed. / Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

Psychomotor stimulant abuse is a significant public health problem. While many individuals experiment with stimulants, there is marked variability in individuals' behavioral and subjective response to these drugs and these differences may be associated with their risk for abuse. One characteristic shown to be associated with drug abuse is sensation seeking, defined as the seeking of novel sensations and experiences and the willingness to take risks for the sake of such experiences. While observational studies have shown that individuals with elevated sensation seeking are more likely to report stimulant use and abuse, less clear is whether subjective and behavioral response to acute stimulant administration may vary as a function of sensation seeking status. We recently completed an outpatient laboratory study in which 37 healthy adults received repeated opportunities to sample and choose between d-amphetamine (d-AMPH; 5, 10, 20 mg/70kg) or placebo. That study provided an opportunity to examine associations between sensation seeking and d-AMPH choice and subjective response under rigorous double-blind experimental conditions. The Zuckerman Sensation Seeking Scale V was administered at intake, providing a Total sensation seeking score as well as four subscales (i.e., Experience Seeking, Disinhibition, Thrill and Adventure Seeking, Boredom Susceptibility). We hypothesized that elevated sensation seeking at intake would be associated with increased preference for d-AMPH over placebo in subsequent choice sessions, as well as greater positive d-AMPH subjective effects. Among males, increased baseline sensation seeking was associated with increased d-AMPH choice and positive subjective effects at the 5 and 10 mg/70 kg doses. Among females we found no significant associations between sensation seeking and d-AMPH choice or subjective effects. Finally, when the association between sensation seeking and other baseline characteristics was examined, there was a significant positive association with lifetime drug use as well as impulsivity. Taken together, our data suggest that elevated sensation seeking in males may be associated with increased sensitivity to d-AMPH reinforcement and positive subjective effects, suggesting increased vulnerability for stimulant use and abuse.

abstract: Criminological theories have long incorporated personality traits as key explanatory factors and have generally relied on assumptions of trait stability. However, growing evidence from a variety of fields including criminology, psychology, and neurobiology is demonstrating that personality traits are malleable over the life-course, and substantial individual variation exists in the developmental patterns of personality traits over time. This research is forcing criminologists to consider how and why “enduring” individual characteristics may change over the life course in ways that are meaningfully related to offending. Two traits that have been consistently linked to offending and conflated in key criminological theories (i.e. Gottfredson and Hirschi’s self-control theory), impulsivity and sensation seeking, have recently been shown to be independent personality traits with different normative maturational timetables and biological underpinnings. This dissertation extends this work by examining developmental patterns of impulsivity and sensation seeking and social sources of variation in these traits with the Family and Community Health Survey, a longitudinal data set that consists of approximately 900 African American youth and their families followed from late childhood to their late-twenties. Multiple longitudinal modeling methods are employed (hierarchical linear modeling and group-based trajectory modeling) to address this research agenda. Results from this dissertation lead to four broad conclusions. First, and in support of existing research, there is substantial variability in developmental trajectories of impulsivity and sensation seeking. Average developmental trajectories of these traits greatly mask the degree of individual variability in developmental patterns that exists. Second, social factors are significantly associated with levels of impulsivity and sensation seeking. Socio-environmental experiences characterized by hostility and unsupportiveness are generally associated with elevated levels of impulsivity and sensation seeking while socio-environmental experiences characterized by warmth and supportiveness are associated with lower levels of impulsivity and sensation seeking. Third, sex differences in developmental patterns of impulsivity are nonexistent while sex differences in developmental patterns of sensation seeking are significant. Finally, with few exceptions, predictors of trait levels operate in a general fashion such the same factors typically explain both male and female trait levels and produce similar effects on impulsivity and sensation seeking. / Dissertation/Thesis / Doctoral Dissertation Criminology and Criminal Justice 2019

The aim of this study was to examine the association between personality and risk taking in a sample of 461 older adults from the Charlotte County Healthy Aging Study (CCHAS). The personality factors of openness to experience, extraversion, neuroticism, agreeableness and conscientiousness were measured with the NEO Five Factor Inventory. Risk-taking was measured with an 8-item questionnaire and a single-item question that assessed subjects' participation in sensation seeking behaviors. Spearman correlation coefficients, hierarchical linear regression and hierarchical logistic regression were used to assess the association. As consistent with past research, high scores on openness to experience (beta = 0.16, P<.0001) and low scores on neuroticism (β = -0.14, P<.01) and agreeableness (β = -0.16, P<.01) were associated with the total score of the 8-item risk taking questionnaire. The single-item risk question was also associated with openness [OR = 1.09; 95% CI: 1.05-1.13], neuroticism [OR = 0.94; 95% CI: 0.90-0.97] and agreeableness [OR = 0.95; 95% CI: 0.92-0.99]. After stratifying by gender, only openness was still significantly associated with risk-taking. Interaction terms including gender and personality factors were added to the models to test if gender was an effect modifier. Although personality differences existed between men and women, none of the interaction terms were statistically significant.

The current study aimed to simultaneously examine cognitive, social and personality development in a cross-sectional sample of 3rd, 4th and 5th grade children to explore the interplay among these processes and how they relate to changes in children's understanding of alcohol. To replicate previous work, this study comprehensively examined relative increases in types of expectancies as a function of development. Results demonstrated that children in higher grades held more positive, negative and sedating expectancies of alcohol and positive alcohol expectancies increased more than negative alcohol expectancies. Improved performance on cognitive measures were associated with positive alcohol expectancy endorsement, indicating that children's ability to incorporate positive beliefs about alcohol, which are conflicting with information typically taught to children in this age range, may be related to their ability to form and articulate concepts with age. Among male participants, sensation seeking increased with age and was strongly associated with positive ideas about alcohol use, such as wanting to experiment with alcohol or planning to drink as an adult. Social influences on alcohol expectancies included exposure to drinking. When children's parents drank more, they had higher positive, negative and sedating alcohol expectancies, indicating that they had a greater understanding of all potential consequences of drinking, while children whose friends drank had higher positive but not other types of expectancies. Additionally, children who turned to adults for advice held increasing levels of negative and sedating alcohol expectancies across age, while children who sought support from their peers showed higher levels of positive and arousing expectancies across age groups. The interplay between cognitive development and risk factors such as social awareness of alcohol, source of social influence, and sensation seeking personality begins to demonstrate key relationships to alcohol expectancies in late childhood. These social and personality risk factors are likely to play an even greater role in early adolescence as children move to middle school and experience puberty. This study provides a basis for future elaboration of the roles these constructs play in an individual's ability to understand the multifaceted expectations that are held in our society about the effects of alcohol on human behavior.

Texting is ubiquitous; the International Association for the Wireless Telecommunications Industry reported that 4.1 billion text messages were sent per day in the first half of 2009. In isolation, texting does not injure individuals; however, when combined with driving, lives have changed for the worse. The National Safety Council estimates that 1.6 million crashes per year can be attributed to distracted drivers either talking on cell phones or texting while driving and nearly 28 percent of all crashes in the United States can be ascribed to these behaviors. An increasing number of texting while driving fear appeal campaigns are being utilized in the media. Therefore, the purpose of this research was to create and test theoretically-based messages aimed at discouraging texting while driving. Formative research along with the Extended Parallel Process Model was used for guidance in the creation of the fear appeal messages. No low threat message was used for the main study after repeated message validations failed. For the study, three high threat messages varied only by a single paragraph which targeted beliefs about benefits, mastery, and ubiquity of texting while driving. 155 undergraduates at Texas A & M University completed a pretest, read the high threat message, and answered a posttest. Need for cognition and sensation seeking tendencies were measured in order to understand the effects such personality traits have on message perceptions. Five major outcomes were revealed even though numerous hypotheses were unsupported. There was a significant interaction between perceived threat and sensation seeking tendencies on message realism. There was a significant interaction between perceived threat and need for cognition on message realism. There was a significant interaction between perceived threat and need for cognition on message accuracy. There was a significant interaction between perceived threat and need for cognition on attitudes. There was a significant positive correlation between perceived threat and perceived message sensation value. This project provides support that sensation seeking tendencies and need for cognition do interacted with perceived threat on perceptions of message effectiveness and that perceived message sensation value was positively related to perceived threat. Results also revealed the prevalence of texting while driving behavior and relationships between personality traits and texting while driving. Sensation seeking tendencies were positively correlated with initiating text messages while driving. Need for cognition was negatively correlated with reading and replying to text messages while driving.

ABSTRACT The aim of this study was to examine the relationship between job satisfaction, birth order and sensation seeking. The sample consisted of 179 jobholders in four different organizations in southern Sweden, with an average age of 44 years (SD = 12,12). A questionnaire consisting of three parts was used to map out and measure the participants’ family background, birth order, job satisfaction and sensation seeking. The study showed no significant relationship between birth order and job satisfaction (p = 0,127). Furthermore, the study showed a significant relationship between sensation seeking and job satisfaction (p = 0,025). Finally the analyses showed that laterborns had a significantly higher score on the sensation seeking scale, used in the questionnaire, than firstborns (p = 0,015). The study concludes that sensation seeking is a significant factor when it comes to prediction of job satisfaction. / SAMMANFATTNING Syftet med denna studie var att undersöka huruvida det fanns ett samband mellan arbetstillfredsställelse och syskonplacering, med hänsyn taget till spänningssökande. Stickprovet bestod av 179 arbetstagare inom fyra organisationer i södra Sverige med en medelålder på 44 år (SD = 12,12). Instrumentet som användes för insamling av data bestod av en enkät med tre delar. Dessa delar kartlade och mätte deltagarnas familjebakgrund, syskonplacering, arbetstillfredsställelse och spänningssökande. Studien visade att det inte fanns något samband mellan syskonplacering och arbetstillfredsställelse (p = 0,127). Vidare visade studien att individer med ett högt mått av spänningssökande upplevde högre arbetstillfredsställelse än individer med ett lågt mått av spänningssökande (p = 0,025). Slutligen framkom det att yngrebarn hade ett högre mått av spänningssökande än individer med en annan placering i syskonskaran (p = 0,015). Spänningssökande är alltså av vikt när det kommer till tillfredsställelse på arbetet.