Influences of lateral preference and personality on behaviour towards a manual sorting task

Differences in task behaviour between left- and right-handers and left- and right-eared individuals have been reported (e.g.  and ) with left-handers taking longer to begin a task and right-eared individuals having a more disinhibited approach. Personality measurements are also important when examining approach behaviour. Jackson (2008) reported that those with higher neuroticism levels and a right-ear preference react faster to tasks. The current study investigated the effects of lateral preference and personality on behaviour towards a manual sorting task. Eighty-five participants completed laterality and personality scales and a card-sorting task. Degree of hand preference was found to influence behaviour towards the task with strong left-handers taking longer to begin. Those with a left congruent lateral preference (left-hand, left-ear) took significantly longer to begin the task than those with a right congruent preference. Neither neuroticism nor extraversion influenced task approach. We concluded that hand preference, and more specifically a strong left-hand preference is a good predictor of a longer initiation time on a manual task. Ear preference on its own does not predict initiation time.     

Approach, avoidance, and self-regulatory conflict: An individual differences perspective

Four studies involving 230 undergraduates examined the interactive effects of dispositional approach and avoidance, as manifest in the traits of extraversion and neuroticism. Participants who were high in both traits or low in both traits exhibited less assertive knocking behavior (Study 1), had difficulties refraining from blinking (Study 2), and displayed more anxious behavior during a mental health interview (Study 3). Study 4 tested the idea that such extraversion by neuroticism interactions might be associated with difficulties in recognizing and responding to goal-relevant stimuli. Results involving a go/no go task confirmed this hypothesis. In total, the results highlight the manner in which the co-activation of dispositional motives related to approach and avoidance can compromise effective self-regulation.     

A quantitative review of the relations between the “Big 3” higher order personality dimensions and antisocial behavior

In this meta-analytic review, Hans J. Eysenck’s theory of criminality (Eysenck, 1964, Eysenck, 1977) serves as a theoretical framework for examining the relations between higher order personality dimensions and antisocial behavior (ASB). The three higher order dimensions examined are referred to as extraversion/sociability, neuroticism/emotionality, and impulsivity/disinhibition (see Sher & Trull, 1994), and they are likened to Eysenck’s dimensions of extraversion (E), neuroticism (N), and psychoticism (P), respectively (Eysenck & Eysenck, 1975) and Tellegen’s dimensions of positive emotionality (PEM), negative emotionality (NEM), and constraint (reversed) (CON), respectively (Tellegen, 1982). Ninety-seven samples, from 52 published and unpublished studies, were reviewed. The results indicated that among the “Big 3” personality dimensions, impulsivity/disinhibition is most strongly related to ASB and extraversion/sociability is least strongly related to ASB. Additional variables, including age and methodological differences, were found to moderate the associations between the personality dimensions and ASB.     

A new approach to Eysenck's theory of criminality

Studies examining Eysenck's theory of criminality by contrasting delinquent and non-delinquent groups have produced equivocal results. Some studies have shown criminals to score higher, as the theory predicts, on psychoticism, neuroticism and extraversion, whilst other studies have not. The current study examines the theory from a new approach by using cluster analysis to demonstrate the heterogeneity of personality types in delinquent sample (N =100) and in a comparison group (N = 100).Four personality types were found in each group. Two personality types which were present in the delinquent sample were not found in the comparison group. The first type consisted of individuals scoring high on neuroticism and extraversion whilst the second type consisted of individuals scoring high on psychoticism, neuroticism and extraversion. These types appeared to be consistent with Eysenck's theory of criminality.     

Pornography,preference for porn‐like sex,masturbation, and men's sexual and relationship satisfaction

Pornography use, preference for “porn‐like” sex, masturbation, and sexual and relationship satisfaction were assessed among two samples of men (N_{Study 1} = 326, N_{Study 2} = 335). Frequent pornography use was associated with sexual dissatisfaction, greater preference for porn‐like sex, and more frequent masturbation in both studies. Pornography use was associated with relationship dissatisfaction in Study 2 only. The data did not support the notion that pornography negatively impacts sexual or relationship satisfaction via preference for porn‐like sex. In fact, it may bolster sexual satisfaction by promoting sexual variety. The data were consistent with a model in which pornography negatively, indirectly affects sexual and relationship satisfaction via masturbation frequency. Pornography use may have multiple opposing influences on sexual satisfaction.     

Self and partner personality in intimate relationships

Two studies were conducted to examine the relations between both partners' personality and marital quality in married or cohabiting heterosexual couples. In Study 1 (N = 1380, or 690 couples), personality was assessed by means of the Dutch Personality Questionnaire, whereas in Study 2 (N = 564, or 282 couples) personality was assessed by means of the Five‐Factor Personality Inventory. We expected neuroticism to relate negatively, and extraversion positively, to marital quality. Furthermore, we expected that spouses would only marginally resemble each other with regard to personality, and that differences in personality would not affect marital quality, when controlling for the individual's levels of personality. All expectations were confirmed. Copyright © 2005 John Wiley & Sons, Ltd.     

Can Culture Influence Body‐Specific Associations Between Space and Valence?

People implicitly associate positive ideas with their dominant side of space and negative ideas with their non‐dominant side. Right‐handers tend to associate “good” with “right” and “bad” with “left,” but left‐handers associate “bad” with “right” and “good” with “left.” Whereas right‐handers' implicit associations align with idioms in language and culture that link “good” with “right,” left‐handers' implicit associations go against them. Can cultural conventions modulate the body‐specific association between valence and left‐right space? Here, we compared people from Spanish and Moroccan cultures, which differ in the strength of taboos against the use of the left hand, and therefore in their preference for the right. Results showed stronger explicit associations between space and valence in Moroccan participants than in Spaniards, but they did not show any increased tendency for right‐handed Moroccans to associate “good” with “right” implicitly. Despite differences in cultural conventions between Spaniards and Moroccans, we find no evidence for a cross‐cultural difference in the implicit association between space and valence, which appears to depend on patterns of bodily experience.     

Reaction to punishment, reflectivity, and passive avoidance learning in extraverts

Passive avoidance learning occupies a central role in accounts of disinhibited behavior, ranging from psychopaths' persistent criminality (Hare 1970) to extraverts' gregariousness (Gray, 1972). To explore the mechanism underlying passive avoidance deficits, we assessed the relation of extraversion, neuroticism, and response latency after punishment to passive avoidance learning by using two successive go/no go discrimination tasks. The tasks were designed to examine two aspects of subjects' reactions to punishment: response speed on trials immediately following punishment (Experiment 1) and time to terminate punishment feedback between successive trials (i.e., reflectivity; Experiment 2). Consistent with previous findings, the results of Experiment 1 showed that extraverts commit more passive avoidance errors than introverts do (Newman, Widom, & Nathan, 1985) and fail to pause following punished errors (Nichols & Newman, 1986). In Experiment 2, only neurotic extraverts displayed this pattern of performance differences. In both experiments, longer pausing following punishment predicted better learning from punishment for both introverts and extraverts. These results suggest that, in the presence of salient cues for reward, extraverts' characteristic reaction to punishment interferes with processing punished errors and may contribute to their more general propensity for impulsive, nonreflective action.     

Children’s Life Satisfaction: Developmental Trajectories and Environmental and Personality Predictors

Life satisfaction is a key indicator of children’s healthy development. Although the developmental changes of life satisfaction during adolescence have been investigated, the developmental trajectories of life satisfaction and related predictors during childhood remain unclear. Thus, the current study aimed to identify the developmental trajectories of life satisfaction covering the period from middle to late childhood as well as to examine the predictive roles of environmental factors (i.e., family dysfunction and basic psychological needs satisfaction at school), personality factors (i.e., neuroticism and extraversion), and their interactions in these developmental trajectories. An accelerated longitudinal design was used with Chinese elementary school students (N?=?1069, 45.8% girls, M _age?=?9.43, SD?=?0.95) of 3 cohorts (grade 3, grade 4, and grade 5) on 4 occasions at 6-month intervals. Growth mixture modeling analyses revealed three distinct trajectories of life satisfaction: “High-Stable” (88.8%), “High-Decreasing” (6.8%), and “Low-Increasing” (4.4%). Multivariate logistic regression analyses revealed that family dysfunction and neuroticism served as risk factors for adverse developmental trajectories of life satisfaction; whereas basic psychological needs satisfaction at school served as a protective factor. Furthermore, the interaction between family dysfunction and extraversion suggested that higher levels of extraversion buffered children against the negative effect of family dysfunction on the development of life satisfaction. The identification of three heterogeneous trajectory groups of children’s life satisfaction and key personality and environmental predictors associated with the trajectories suggests that specific interventions need to be tailored to the unique characteristics of the relevant trajectory groups.

     

Event centrality prospectively predicts PTSD symptoms

Background: Recent evidence suggests that event centrality has a prominent association with post-traumatic stress disorder (PTSD) symptoms. However, evidence for this notion thus far has been mostly correlational. We report two studies that prospectively examined the relationship between event centrality and PTSD symptoms. Study 1 Methods: Participants (N?=?1438) reported their most stressful event (“prior event”), along with event centrality, PTSD symptoms, and neuroticism. At Time 2 participants reported their most stressful event since Time 1 (“critical event”), along with measures of event centrality and PTSD symptoms. Study 1 Results: Event centrality for the critical event predicted PTSD symptoms, after controlling for event centrality and PTSD symptoms of the prior event and neuroticism. Study 2 Methods: In the second study (N?=?161) we examined changes in event centrality and PTSD symptoms over a month. Study 2 Results: Using a cross-lagged panel design, results revealed event centrality at Time 1 significantly predicted PTSD symptoms at Time 2, but the reverse was not significant. Conclusions: In two studies, a prospective association between event centrality and PTSD symptoms, but not the reverse, emerged. This evidence implicates event centrality in the pathogenesis and/or maintenance of PTSD symptoms.     

Clarifying the Relation Between Extraversion and Positive Affect

This article clarifies two sources of ambiguity surrounding the relation between extraversion and positive affect. First, positive affect is defined differently across major models of the structure of affect. Second, no previous research has examined potentially diverging associations of lower‐order aspects of extraversion (i.e., assertiveness and enthusiasm) with positive affect. Australian (Study 1: N = 437, 78% female, M_age = 20.41) and American (Study 2: N = 262, 39% female, M_age = 33.86) participants completed multiple measures of extraversion and positive affect. Correlations were employed to examine relations among these measures. In both studies, extraversion was most clearly associated with positive affect as conceptualized within a major factor model of affect—specifically, as positive activation (Watson & Tellegen, 1985)—rather than the valence‐based conceptualization of positive affect provided by a circumplex model of affect (Russell, 1980). This was also the case for the assertiveness and enthusiasm aspects of extraversion. Our findings clarify the nature of the positive affective component of extraversion, which is best described in terms of both positive valence and high activation.     

What Does Psychological Autopsy Study Tell Us About Charcoal Burning Suicide—A New and Contagious Method in Asia?

Charcoal burning suicides in Hong Kong between 2002–2004 in the 15 to 59‐year‐old age group were investigated using the psychological autopsy method. The psychopathological profiles of charcoal burning suicides (N = 53) were compared against “other suicides” (N = 97). The two groups did not differ significantly in the prevalence of DSM‐IV axis I diagnoses with the exception of schizophrenic spectrum disorder which was less frequently associated with charcoal burning suicides. Score on “neuroticism” in the NEO‐five Factor Inventory (NEO‐FFI) was significantly higher in victims of charcoal burning suicide. There was also a trend toward higher score on “conscientiousness” in the NEO‐FFI among charcoal burners than victims of other suicide.     

Personality and lexical decision times for evaluative words

We studied personality influences on accessibility of pleasant and unpleasant stimuli in a sample of 129 students. Self‐reports and reports by knowledgeable informants on extraversion, neuroticism, approach temperament and avoidance temperament were combined with a go/no‐go lexical decision task that included pleasant, unpleasant and neutral words, and two response modes, manual and vocal. The data were analysed using multilevel modelling. Extraversion and approach temperament predicted faster identification of pleasant words than of neutral and of unpleasant words. Vocal responses took longer than manual responses, but mode of response did not interact with the valence of the words. Copyright © 2009 John Wiley & Sons, Ltd.     

A Self‐Regulatory Model of Behavioral Disinhibition in Late Adolescence: Integrating Personality Traits,Externalizing Psychopathology,and Cognitive Capacity

ABSTRACT Two samples with heterogeneous prevalence of externalizing psychopathology were used to investigate the structure of self‐regulatory models of behavioral disinhibition and cognitive capacity. Consistent with expectations, structural equation modeling in the first sample (N=541) showed a hierarchical model with 3 lower order factors of impulsive sensation seeking, antisociality/unconventionality, and lifetime externalizing problem counts, with a behavioral disinhibition superfactor best accounted for the pattern of covariation among 6 disinhibited personality trait indicators and 4 externalizing problem indicators. The structure was replicated in a second sample (N=463) and showed that the behavioral disinhibition superfactor, and not the lower order impulsive sensation seeking, antisociality/unconventionality, and externalizing problem factors, was associated with lower IQ, reduced short‐term memory capacity, and reduced working memory capacity. The results provide a systemic and meaningful integration of major self‐regulatory influences during a developmentally important stage of life.     

Multi-Task Study of the Effects of Task Load and Gender on the Development of Visual Field Asymmetries

This study was designed to examine whether the developmental course of visual hemispheric asymmetry is affected by task load and whether gender differences occur with age. Three experiments were performed according to the additive structure of reaction time: “go/no-go” task, “choice-reaction-time” task, and “category-sort” task. Children in three different age groups (7- to 8-years, 10 years, and 13 year olds) were presented lists of words using a visual half-field procedure. Results revealed that in the go/no-go task (Experiment 1), left hemispheric superiority for processing of word stimuli was evident at all three developmental ages, but no gender differences appeared. However, in the choice-reaction-time task (Experiment 2), and the category-sort task (Experiment 3), left hemispheric superiority was displayed by 7- to 8- and 10-year-old males, but not by 13-year-old males. In contrast, girls did not show the left hemispheric advantage at any of the developmental ages. It was concluded that visual hemispheric asymmetry exists in children at an early age, but the magnitude of asymmetry is dependent on age, gender, and task load.     

Personality,life events and the course of anxiety and depression

Using data from the Netherlands Study of Depression and Anxiety, we examined among 1322 participants with a DSM‐IV diagnosis of depression or anxiety: (i) whether positive and negative life events influence 1‐year course of anxiety and depressive symptoms; (ii) whether personality traits (neuroticism and extraversion) predict symptom course and moderate the impact of life events on symptom course; and (iii) whether life events mediate relationships of neuroticism and extraversion with symptom course. Negative life events were predictive of both anxiety and depressive symptoms, while positive life events predicted the course of depressive symptoms only. Personality traits had significant predictive and moderating effects on symptom course, though these effects were rather small. Copyright © 2011 John Wiley & Sons, Ltd.     

Reaction to punishment in extraverts and psychopaths: Implications for the impulsive behavior of disinhibited individuals

To explore the factors mediating impulsivity in the syndromes of disinhibition, we investigated the ability of extraverts and psychopaths to use signals for punishment to withhold maladaptive approach behavior under various incentive conditions. The results provide evidence that (a) in comparison to controls, extraverts and psychopaths fail to use cues for punishment to inhibit incorrect approach responses; (b) the deficient response inhibition of disinhibited subjects is specific to approach-avoidance situations; (c) under conditions involving monetary rewards and punishments, disinhibited subjects are less likely to slow down, and may even respond more quickly, following punishment; and (d) the tendency to speed up rather than slow down following punishment is associated with failure to learn from punishment. The results suggest that once focused on obtaining reward, extraverts and psychopaths display an active (disinhibited) as opposed to a passive (reflective) reaction to punishment and frustrative nonreward. This reaction to punishment appears to interfere with learning cues for punishment and may underlie the poor passive avoidance learning and impulsive behavior that characterize the syndromes of disinhibition.     

Neuroticism and extraversion are associated with amygdala resting-state functional connectivity

The personality traits neuroticism and extraversion are differentially related to socioemotional functioning and susceptibility to affective disorders. However, the neurobiology underlying this differential relationship is still poorly understood. This discrepancy could perhaps best be studied by adopting a brain connectivity approach. Whereas the amygdala has repeatedly been linked to neuroticism and extraversion, no study has yet focused on the intrinsic functional architecture of amygdala-centered networks in relation to both traits. To this end, seed-based correlation analysis was employed to reveal amygdala resting-state functional connectivity (RSFC) and its associations with neuroticism and extraversion in 50 healthy participants. Higher neuroticism scores were associated with increased amygdala RSFC with the precuneus, and decreased amygdala RSFC with the temporal poles, insula, and superior temporal gyrus (p < .05, cluster corrected). Conversely, higher extraversion scores were associated with increased amygdala RSFC with the putamen, temporal pole, insula, and several regions of the occipital cortex (p < .05, cluster corrected). The shifts in amygdala RSFC associated with neuroticism may relate to the less-adaptive perception and processing of self-relevant and socioemotional information that is frequently seen in neurotic individuals, whereas the amygdala RSFC pattern associated with extraversion may relate to the heightened reward sensitivity and enhanced socioemotional functioning in extraverts. We hypothesize that the variability in amygdala RSFC observed in the present study could potentially link neuroticism and extraversion to the neurobiology underlying increased susceptibility or resilience to affective disorders.     

Different ways to get the job done: comparing the effects of intellectual stimulation and contingent reward leadership on task‐related outcomes

Two experiments were conducted to compare the effects of intellectual stimulation and contingent reward leadership on performance, task enjoyment, and extra effort. Participants (N = 78 and N = 158) viewed one of three videos and performed an in‐basket exercise. Several interesting differences emerged. Across both studies, participants in the control and contingent reward leadership conditions generated more ideas than their counterparts in the intellectual stimulation condition. Additionally, participants reported more willingness to exert extra effort when the leader was either intellectually stimulating or emphasized contingent reward leadership, as compared to the control condition. Finally, while task enjoyment was higher in the contingent reward leadership condition than in the control condition in Study 1, no significant differences emerged among conditions for enjoyment in Study 2.     

“We want the world and we want it now”: Materialism,time perspectives and problem spending tendency of Chinese

Chinese consumers' spending has been expanding rapidly in the past decade, and along with it household and credit card debt. The present research collected evidence to triangulate the contention that materialism is positively related with Chinese's problem spending tendency (PST), and that present‐time‐perspective (PTP) and future‐time perspectives (FTP) interact systematically with materialism to affect PST. A survey of the general population in Macao, China (Study 1; N = 239) confirmed that materialism was positively correlated with PST. An interaction between materialism and PTP intensified the relationship, whereas an interaction with FTP weakened the relationship. Another survey with a sample of university students (Study 2; N = 223) again found positive relationships among PST, materialism, and PTP, as measured by temporal discount rate. But further exploration showed that PST was only related with temporal discounting among high materialists, but not among low materialists. Study 3 experimentally examined the causal effects of materialism and FTP on PST. When being primed of an orientation towards materialism (n = 33), the participants' planned consumption doubled that of the control group (n = 31). A FTP prime interacted with materialism prime and put a “damper” on participants' planned spending (n = 29), compared to their counterparts who were not primed of such a time perspective.