BAS Reward Responsiveness Research Articles

Performance of cognitive tasks and functional brain activity in anxiety disorders

Objective. To improve understanding of psychophysiological underpinnings of anxiety disorders a comprehensive study, that included the analysis of cognitive tasks performance, event-related potentials and psychometric scales, has been conducted.Materials and Methods. Participants were patients with generalized anxiety disorder (GAD group — 12 s.), mixed anxiety and depressive disorder (ADD group — 16 s.) and healthy volunteers (control group — 16 s.). The psychometric techniques included the questionnaires of Spielberger, HADS (Hospital Anxiety and Depression Scale) and Carver-White (BIS/BAS Scale). Psychophysiological methods included antisaccade task (AS) and event-related evoked potentials P300 that were recorded during auditory oddball task.Results. The significantly increased anxiety and depression scales, as well as the decreased BAS Reward Responsiveness scale, was found in patients of both clinical groups compared to control one; the increased BIS scale was revealed only in ADD group. In GAD and ADD groups AS performance was worse in response to stimuli in left hemi-field that are initially processed in right hemisphere; on the contrary, decreased number of target stimuli omissions was found in oddball task in clinical groups. P300 amplitude was larger, and P300 latency was shorter for patients with ADD compared to controls. Analysis of asymmetry demonstrated that P300 amplitudes were greater over the frontal-central right than over the left hemisphere in ADD group.Conclusion. The study demonstrated that anxiety disorders are accompanied by reallocation of attentional resources and changes in functional organization of brain networks involved in attention and executive functions. With the same direction, the shifts were greater in ADD group.

Differences in Approach and Avoidance Motivation Sensitivities Predicting Participation and Performance in Strength Sport

Abstract Cusimano, K, Freeman, P, Moran, J, and Yamaguchi, M. Differences in approach and avoidance motivation sensitivities predicting participation and performance in strength sport. J Strength Cond Res 38(1): 180–184, 2024—Gray's Reinforcement Sensitivity Theory proposes that individual differences in behavior are due to the sensitivity to 2 brain systems: the behavioral inhibition system (BIS), which regulates aversive emotions to threatening stimuli, and the behavioral approach system (BAS), which regulates positive emotions toward rewarding or nonpunishing stimuli. The current study investigated whether BIS and BAS sensitivity predicts participation and performance in strength sports. A sample of 177 competitive strength athletes (male = 148; female = 29; mean age = 28.68; SD = 6.24 years) and 178 control participants (male = 89; female = 89; mean age = 29.39; SD = 7.42) completed the BIS/BAS scale, with strength athletes also providing their Wilks scores as a measure of sporting performance. Independent t tests showed significantly higher BIS (MD = 2.37, p = 0.003, 95% CI [0.79, 3.94], d = 0.31) and total BAS (MD = 11.71, p < 0.001, 95% CI [9.26, 14.15], d = 1.00) sensitivity in strength athletes than individuals in the control group. A 3-step hierarchical regression analysis revealed that the number of training years (β = 0.506, p < 0 .001), BIS (β = −203, p = 0.005) and BAS drive (β = 0.188, p = 0.012) made significant unique contributions to predicting the Wilks score, with no significant contributions of age, sex, BAS fun seeking, and BAS reward responsiveness. The findings indicate that the overall reward sensitivity (total BAS score) and reward seeking (BAS drive) are associated positively with participation and performance in strength sports, respectively. Given the association of these brain systems to addiction and other psychiatric disorders, the findings could have implications in psychiatric treatment and sporting recruitment.

Measuring Personality Systems in Older Adults: Age-Neutrality of the Dutch BIS/BAS Questionnaire.

With a rapidly aging population, age-neutrality of psychological instruments is becoming ever more important for accurate assessment of older adults. This study aims to test the age-neutrality of the Dutch Behavioral Inhibition System/Behavioral Approach System (BIS/BAS) scales by means of Differential Item Functioning (DIF) and Differential Test Functioning (DTF) analyses. DIF and DTF analyses were conducted using an odds ratio approach. Potential DIF was examined for the two primary scales and three BAS subscales in 390 Dutch-speaking participants divided over three age groups. Overall, the BIS-BAS scales lacked age-neutrality when comparing older adults to young adults: eight out of 20 items (ie, 40%) displayed DIF according to the adjusted Bonferroni corrected cut-offs, which exceeds the threshold of 25% for large DIF. Thus, for 40% of the test items, items were differently endorsed by young and older adults with the same position on the construct measured by the item. Therefore, the implications of the item-level DIF on the scale level were investigated across age groups. DTF analyses revealed large DTF for all BIS and BAS scales according to the adjusted Bonferroni corrected cut-offs. DIF found in items on the BIS scale and BAS-Drive and BAS-Fun Seeking scale can probably be explained by a difference in degree of expression across age groups. A solution could be the development of age-specific norms. DIF on BAS-Reward Responsiveness subscale could be partly due to measuring a different construct across age groups. Rephrasing or replacing such items with DIF may increase age-neutrality of the BIS/BAS Scales.

Cognitive flexibility assessment with a new Reversal learning task paradigm compared with the Wisconsin card sorting test exploring the moderating effect of gender and stress.

Cognitive flexibility plays a crucial role in psychological health and this research aimed to investigate its assessment. We developed a novel Reversal learning task (RLT) paradigm adding pure reward (+ 100 points, 0) and punishment (-100 points, 0) conditions to the classic reward-punishment condition (+ 100, -100); we also analyzed the RLT convergent validity with approach-avoidance questionnaires (BIS-BAS and Approach-Avoidance Temperament questionnaire) and the Wisconsin card sorting test (WCST) scores through a Principal component analysis. In a sample of 374 participants, we found that these three conditions differently assess flexibility and that high RLT reward sensitivity in the punishment condition (0; -100) is related with high BAS reward responsiveness. Moreover, we found that RLT and WCST flexibility scores, although associated, detect different facets of cognitive flexibility. Finally, in a second sample (N = 172), we explored the impact of stress, moderated by gender, on RLT and WCST. Whereas, WCST was not impacted by these variables, in RLT stressed women showed increased perseverative errors in punishment condition (-100, 0) and reduced punishment sensitivity in reward condition (+ 100, 0).Overall, our newly developed RLT paradigm and the WCST seem to provide different ways to assess cognitive flexibility and to be differently affected by moderators, such as gender and stress.

The roles of behavioral inhibition/activation systems and impulsivity in problematic smartphone use: A network analysis.

Behavioral inhibition/activation systems (BIS/BAS) and impulsivity are associated with problematic smartphone use (PSU). However, no studies to date have explored how the subdomains of BIS/BAS and the dimensions of impulsivity relate to the components of PSU in a joint framework. This study aimed to examine the relationships between the three constructs at a fine-grained level and identify the central nodes and bridge nodes of their relationships using network analysis. A regularized partial correlation network of PSU, BIS/BAS, and impulsivity communities was estimated to investigate the connections between variables and determine the expected influence and bridge expected influence for each variable based on data from 325 Chinese adults. PSU, BIS/BAS, and impulsivity were assessed using the Smartphone Application-Based Addiction Scale (SABAS), BIS/BAS scales, and Barratt Impulsiveness Scale-Version 11 (BIS-11), respectively. In addition to connections within each community, network analysis revealed that there were connections between different communities, especially connections to PSU. I2 "motor impulsivity" was strongly associated with PSU2 "conflict" and PSU6 "relapse"; BASR "BAS-reward responsiveness" was strongly associated with PSU5 "withdrawal." Nodes BASR "BAS-reward responsiveness" and PSU6 "relapse" were the most central variables, while nodes BASR "BAS-reward responsiveness" and I2 "motor impulsivity" were the strongest bridge variables. The connections between the subdomains of BIS/BAS and the components of PSU and between the dimensions of impulsivity and the components of PSU may be particularly important in the development and maintenance of PSU. The central variables identified here, along with the bridge variables, could be promising and effective targets for the prevention and intervention of PSU.

Personality traits and mental health of social networking service users: A cross-sectional exploratory study among Japanese undergraduates

In this study, we investigated personality and mental health variables for users of three popular social networking services (SNS): Twitter, Instagram, and Facebook, among Japanese undergraduate students (N = 1030). Compared to non-users, Twitter users scored significantly lower in extraversion, conscientiousness, openness, and self-esteem, and higher in neuroticism, behavioral inhibition system (BIS) sensitivity, and social comparison orientation. Instagram users scored significantly higher in extraversion, behavioral approach system (BAS) -drive, BAS-reward responsiveness, BAS-fun seeking, narcissism, self-esteem, and subjective happiness, and lower in neuroticism, anxiety, and to a marginal extent, depression. Facebook users scored significantly higher in extraversion, openness, BAS-fun seeking, self-esteem, and to a marginal extent, narcissism. Within SNS users, extraversion, agreeableness, and self-esteem were negatively associated with negative mental health variables, and positively associated with positive mental health variables. Neuroticism was positively associated with negative mental health variables, and negatively associated with positive mental health variables. Further, some associations were found within specific SNS users. Differences in personality and mental health were discussed based on the characteristics of each SNS platform.

Measuring Behavioral Inhibition and Behavioral Activation in Older Adults: Construct Validity of the Dutch BIS/BAS Scales.

Research on the validity of the behavioral inhibition system/behavioral approach system (BIS/BAS) scales focused on adolescent, student and adult populations. This study is the first to examine the psychometric properties of the BIS/BAS scales in a community (n = 368) and a clinical sample (n = 160) of older adults. Exploratory structural equation modelling with target rotation to the Carver and White model supported the construct validity of the BIS/BAS scales. Internal consistencies of the scales were generally satisfactory. Female participants scored higher on BIS and BAS-Reward Responsiveness compared with males. The community-dwelling sample scored higher on BAS-Drive and BAS-Reward Responsiveness compared with the clinical sample. Concerning the nomological net, BIS was positively related to Anxiety, Depression, maladaptive coping strategies, Neuroticism and Cluster C personality disorders. BAS was positively related to Openness, Extraversion, Active Confronting and Cluster B personality disorders and negatively related to the schizoid personality disorder. The BIS/BAS Scales are a useful instrument for measuring Gray's theory of personality in older adults.

Behavioral inhibition/approach systems and adolescent nonsuicidal self-injury: The chain mediating effects of difficulty in emotion regulation and depression

Previous research on Reinforcement Sensitivity Theory has tentatively established the associations between behavioral inhibition/activation systems (BIS/BAS) and nonsuicidal self-injury (NSSI), but the effects of BAS subcomponents (i.e. BAS-Fun Seeking, BAS-Reward Responsiveness, and BAS-Drive) on NSSI and the potential mediation mechanisms of these associations remain unclear. The present study tested a chain mediating model to examine the effects of BIS and BAS subcomponents on NSSI, as well as the mediating roles of difficulty in emotion regulation (DER) and depression. A total of 1724 Chinese adolescents (39.8% males; mean age = 15.21 years, SD = 1.57) completed self-report measures of BIS/BAS, DER, depression, and NSSI. After controlling for gender, BIS, BAS-Fun Seeking and BAS-Drive demonstrated positive associations and BAS-Reward Responsiveness demonstrated a negative association with NSSI. The results also showed a positive effect of DER on depression. DER and depression, independently and in sequence, mediated the relations between BIS/BAS-Fun Seeking/BAS-Reward Responsiveness and NSSI to different degrees. These findings contribute to a more comprehensive understanding of the risk factors for self-injury. Clinical implications of these findings are discussed.

Effects of transcranial direct current stimulation on addictive behavior and brain glucose metabolism in problematic online gamers.

Background and aimsSome online gamers may encounter difficulties in controlling their gaming behavior. Previous studies have demonstrated beneficial effects of transcranial direct current stimulation (tDCS) on various kinds of addiction. This study investigated the effects of tDCS on addictive behavior and regional cerebral metabolic rate of glucose (rCMRglu) in problematic online gamers.MethodsProblematic online gamers were randomized and received 12 sessions of either active (n = 13) or sham tDCS (n = 13) to the dorsolateral prefrontal cortex over 4 weeks (anode F3/cathode F4, 2 mA for 30 min, 3 sessions per week). Participants underwent brain 18F-fluoro-2-deoxyglucose positron emission tomography scans and completed questionnaires including the Internet Addiction Test (IAT), Brief Self-Control Scale (BSCS), and Behavioral Inhibition System/Behavioral Activation System scales (BIS/BAS) at the baseline and 4-week follow-up.ResultsSignificant decreases in time spent on gaming (P = 0.005), BIS (P = 0.03), BAS-fun seeking (P = 0.04), and BAS-reward responsiveness (P = 0.01), and increases in BSCS (P = 0.03) were found in the active tDCS group, while decreases in IAT were shown in both groups (P < 0.001). Group-by-time interaction effects were not significant for these measures. Increases in BSCS scores were correlated with decreases in IAT scores in the active group (β = −0.85, P < 0.001). rCMRglu in the left putamen, pallidum, and insula was increased in the active group compared to the sham group (P for interaction < 0.001).Discussion and conclusionstDCS may be beneficial for problematic online gaming potentially through changes in self-control, motivation, and striatal/insular metabolism. Further larger studies with longer follow-up period are warranted to confirm our findings.

Associations of behavioral inhibition system with negatively biased social cognitions: Moderation by the behavioral approach system

Using the behavioral inhibition system (BIS) and behavioral approach system (BAS) subscales of the BIS/BAS Scales (Carver & White, 1994), this study examined how the association of the BIS and the negatively biased social cognitions of social comparison, social ineptness, negative self-statements, and fear of negative evaluation, were moderated by BAS-Drive and BAS-Reward Responsiveness. A total of 302 (males = 101, females = 201) adults (age ranging from 18 to 65 years) from the general community completed questionnaires covering the different study variables. The findings indicted moderation by BAS-D for the predictions of social comparison, social ineptness, and negative self-statements, and moderation by BAS-RR for the predictions of social ineptness, negative self-statements, and fear of negative evaluation. For moderation effects, moderation was present at lower levels of BAS-D, and at higher levels of BAS-RR.

The Role of Motivation in Cognitive Reappraisal for Depressed Patients.

Background: People engage in emotion regulation in service of motive goals (typically, to approach a desired emotional goal or avoid an undesired emotional goal). However, how motives (goals) in emotion regulation operate to shape the regulation of emotion is rarely known. Furthermore, the modulatory role of motivation in the impaired reappraisal capacity and neural abnormalities typical of depressed patients is not clear. Our hypothesis was that (1) approach and avoidance motivation may modulate emotion regulation and the underlying neural substrates; (2) approach/avoidance motivation may modulate emotion regulation neural abnormalities in depressed patients.Methods: Twelve drug-free depressed patients and fifteen matched healthy controls reappraised emotional pictures with approach/avoidant strategies and self-rated their emotional intensities during fMRI scans. Approach/avoidance motivation was measured using Behavioral Inhibition System and Behavioral Activation System (BIS/BAS) Scale. We conducted whole-brain analyses and correlation analyses of regions of interest to identify alterations in regulatory prefrontal-amygdala circuits which were modulated by motivation.Results: Depressed patients had a higher level of BIS and lower levels of BAS-reward responsiveness and BAS-drive. BIS scores were positively correlated with depressive severity. We found the main effect of motivation as well as the interactive effect of motivation and group on the neural correlates of emotion regulation. Specifically, hypoactivation of IFG underlying the group differences in the motivation-related neural correlates during reappraisal may be partially explained by the interaction between group and reappraisal. Consistent with our prediction, dlPFC and vmPFC was differentially between groups which were modulated by motivation. Specifically, the avoidance motivation of depressed patients could predict the right dlPFC activation during decreasing positive emotion, while the approach motivation of normal individuals could predict the right vmPFC activation during decreasing negative emotion. Notably, striatal regions were observed when examining the neural substrates underlying the main effect of motivation (lentiform nucleus) and the interactive effect between motivation and group (midbrain).Conclusions: Our findings highlight the modulatory role of approach and avoidance motivation in cognitive reappraisal, which is dysfunctional in depressed patients. The results could enlighten the CBT directed at modifying the motivation deficits in cognitive regulation of emotion.

Altered brain activity and the effect of personality traits in excessive smartphone use during facial emotion processing

Excessive smartphone use is a phenomenon related to maladaptive smartphone use, leading to negative consequences. This study set out with the aim of assessing the effects of excessive smartphone use on behavioral and neural responses during facial emotional processing. We examined 25 excessive smartphone users and 27 normal control users using functional MRI during facial emotion processing and investigated Behavioral Inhibition System/Behavioral Activation System (BIS/BAS). The excessive smartphone use group (SP) showed neural deactivation in the dorsolateral prefrontal cortex (DLPFC) and dorsal anterior cingulate cortex (dACC) during the presentation of an angry face and emotional transition compared to that of the normal control group (NC). Additionally, the SP revealed neural deactivation of the superior temporal sulcus and temporo-parietal junction related to social interaction during emotional transition compared to the NC. We found that BAS-Reward Responsiveness level was correlated with behavioral responses during repeated happy faces related to emotional reward in SP compared to NC. It can thus be suggested that excessive smartphone use is likely to fail on cognitive control during emotional processing, and this impairment might be influenced on emotional processing related to social interaction.

Fun Seeking and Reward Responsiveness Moderate the Effect of the Behavioural Inhibition System on Coping-Motivated Problem Gambling.

Gray's Reinforcement Sensitivity Theory (RST) predicts that the Behavioral Inhibition System (BIS) may relate to coping-motivated problem gambling, given its central role in anxiety. Studies examining the BIS-problem gambling association, however, are mixed. The revised RST posits that the Behavioral Approach System (BAS) may moderate the effect of the BIS on coping-motivated problem gambling. A concurrently strong BAS may highlight the negatively reinforcing effects of gambling, which may strengthen coping motives and increase gambling-related harms. We examined these interactive effects to clarify the moderators and mediators of the negative reinforcement pathway to problem gambling. Data came from a larger investigation of problem gambling among individuals with mood disorders. All participants (N=275) met criteria for a lifetime depressive or bipolar disorder. During a two-day assessment, participants completed a diagnostic assessment and self-reports. Mediated moderation path analysis showed positive indirect effects from the BIS to problem gambling via coping motives at high, but not at low, levels of BAS-Reward Responsiveness and BAS-Fun Seeking. Enhancement motives were also found to mediate the associations of BAS-Fun Seeking and BAS-Drive with problem gambling. Reward Responsiveness and Fun Seeking facets of the BAS may strengthen coping gambling motives within the mood disorders.

The behavioral approach system as an instrument for assessing clinical staging in patients with bipolar I disorder

Introduction: Bipolar disorder (BPD) is the sixth leading cause of disability worldwide. A staging model in BPD would be useful in order to provide the necessary information to the clinician for selecting stage-specific strategies for treatment. Multiple studies emphasize the view that the behavioral approach system (BAS) may be a relevant marker of illness onset and progression in BPD. Objective: The aim of this research study was to further explore the roles of self-reported BAS Drive, Fun Seeking and Reward Responsiveness levels in a sample of Romanian bipolar I disorder patients compared with a control group. Materials and methods: Our sample consisted of 93 subjects, divided in to 58 BPD I patients and 35 healthy controls. Consequently the BPD I group was subdivided, according to specific psychopathological clinical states such as mania, hypomania, depressive and mixed episodes, by using the Romanian version of the MINI International Neuropsychiatric Interview. The BIS/BAS self-report scale was used in order to assess the behavioral approach system. Results: Our study showed higher mean rank values of BAS score for the participants suffering from BPD I compared with healthy controls. Our data revealed increased mean rank values of BAS scores only for the participants who presented in a manic episode when compared with the depression, remission and the healthy control subgroups. High BAS Drive and BAS Reward Responsiveness scores were directly correlated with a greater number of past manic episodes, while a high BAS Fun Seeking score was indirectly correlated with the number of past episodes of depression. Conclusion: Our results contribute the current research findings regarding the BAS dysregulation theory in BPD and subscribe to the importance of measuring BAS hypersensitivity as a reliable behavioral marker for attaining a theoretically driven model for disease progression in BSD and improving therapeutic strategies for our patients.

Early maladaptive schemas, behavioral inhibition/approach systems, and defense styles in the abusers of opiate, stimulant, and cannabis drugs and healthy subjects

The aim of the present study was to study the comparison of early maladaptive schemas (EMSs), behavioral inhibition/approach systems (BAS/BIS), and defense styles among the Iranian users of opiate, stimulant, and cannabis drugs and healthy subjects since July 2014 to August 2015. In a cross-sectional comparative design, 962 participants including 762 users of opiate (males = 256, females = 142), stimulant (males = 136, females = 112), and cannabis (males = 84, females = 32) drugs and 200 healthy subjects (males = 112, females = 88) were selected and completed the demographic questionnaire, Young Maladaptive Schemas Questionnaire-Short Form (YSQ-SF), Carver and White BIS/BAS scale, and Defense Style Questionnaire (DSQ-40). The results indicated that in EMSs, BIS, BAS-reward responsiveness (BAS-RR), BAS-drive (BAS-D), and defense styles there were significant differences among four groups including opiate, stimulant, and cannabis drugs and healthy subjects. Also, the users of opiate in EMSs, BIS, and immature defense style, the stimulant users in BAS-D, BAS-RR, and neurotic defense style, and the healthy subjects in mature defense style revealed higher means. It is concluded that there were significant differences among the four groups in EMSs, BIS, BAS subscales, as well as maladaptive defense styles.

Personality Factors Predicting Smartphone Addiction Predisposition: Behavioral Inhibition and Activation Systems, Impulsivity, and Self-Control.

The purpose of this study was to identify personality factor-associated predictors of smartphone addiction predisposition (SAP). Participants were 2,573 men and 2,281 women (n = 4,854) aged 20–49 years (Mean ± SD: 33.47 ± 7.52); participants completed the following questionnaires: the Korean Smartphone Addiction Proneness Scale (K-SAPS) for adults, the Behavioral Inhibition System/Behavioral Activation System questionnaire (BIS/BAS), the Dickman Dysfunctional Impulsivity Instrument (DDII), and the Brief Self-Control Scale (BSCS). In addition, participants reported their demographic information and smartphone usage pattern (weekday or weekend average usage hours and main use). We analyzed the data in three steps: (1) identifying predictors with logistic regression, (2) deriving causal relationships between SAP and its predictors using a Bayesian belief network (BN), and (3) computing optimal cut-off points for the identified predictors using the Youden index. Identified predictors of SAP were as follows: gender (female), weekend average usage hours, and scores on BAS-Drive, BAS-Reward Responsiveness, DDII, and BSCS. Female gender and scores on BAS-Drive and BSCS directly increased SAP. BAS-Reward Responsiveness and DDII indirectly increased SAP. We found that SAP was defined with maximal sensitivity as follows: weekend average usage hours > 4.45, BAS-Drive > 10.0, BAS-Reward Responsiveness > 13.8, DDII > 4.5, and BSCS > 37.4. This study raises the possibility that personality factors contribute to SAP. And, we calculated cut-off points for key predictors. These findings may assist clinicians screening for SAP using cut-off points, and further the understanding of SA risk factors.

Reinforcement sensitivity and social anxiety in combat veterans

ObjectiveThe present study tested the hypothesis that low behavioral approach system (BAS) sensitivity is associated with social anxiety in combat veterans. MethodSelf-report measures of reinforcement sensitivity, combat exposure, social interaction anxiety, and social observation anxiety were administered to 197 Iraq/Afghanistan combat veterans. ResultsAs expected, combat exposure, behavioral inhibition system (BIS) sensitivity, and fight–flight–freeze system (FFFS) sensitivity were positively associated with both social interaction anxiety and social observation anxiety. In contrast, BAS sensitivity was negatively associated with social interaction anxiety only. An analysis of the BAS subscales revealed that the Reward Responsiveness subscale was the only BAS subscale associated with social interaction anxiety. BAS-Reward Responsiveness was also associated with social observation anxiety. ConclusionThe findings from the present research provide further evidence that low BAS sensitivity may be associated with social anxiety over and above the effects of BIS and FFFS sensitivity.

Dispositional behavioral activation: Relationships with cardiovascular activity during anger and sadness

Anger arises when goals are thwarted, but remain potentially attainable, and can motivate persistent engagement in goal pursuit. Sadness occurs when goals appear beyond reach, often leading to disengagement. Variations in engagement, or motivational intensity, are reflected in cardiovascular reactivity. Motivational intensity in goal-relevant situations is subject to regulation by individual differences in dispositions involving behavioral activation (BAS) and inhibition systems (BIS). This study examined whether cardiovascular responses indicative of motivational intensity are influenced by attributes measured by Carver and White's (1994) BAS Drive, BAS Reward Responsiveness, and BIS scales. Anger and sadness were induced on a within-subjects basis using an autobiographical recall task. Cardiovascular measures were systolic and diastolic blood pressure (SBP and DBP) and heart rate (HR). Post-task affect ratings indicated that the anger–sadness manipulation was successful. As expected, BAS Drive was positively associated with SBP and DBP (but not HR) elevations while participants related an anger-inducing event. Also as expected, this pattern was reversed for sadness, where Drive scores were inversely related to SBP and DBP elevations. Neither Reward Responsiveness nor BIS were associated with cardiovascular reactivity. These findings contribute to understanding of dispositions that influence physiologic activity reflective of motivational intensity in emotional situations.

BIS and BAS: Biobehaviorally rooted drivers of entrepreneurial intent

We document the predictive relevance of the behavioral inhibition system (BIS) and the behavioral approach system (BAS) in a novel domain of societal importance: entrepreneurship. Based on structural equation models, Study 1 (N=320) reveals that BAS reward responsiveness (BAS-RR) has a negative and BAS fun seeking (BAS-FS) has a positive association with entrepreneurial intent. Similar results emerge for Study 2 (N=470): BAS-RR is negatively and BAS drive (BAS-D) is positively related to entrepreneurial intent. Additionally, Study 2 includes entrepreneurial experience, which is negatively related with BAS-RR and positively with BAS-D. We do not find any significant relationship between the BIS and entrepreneurial intent or experience. Our results support the multidimensionality of the BAS, with the subscales being differently associated with both entrepreneurial intent and experience. Finally, by simultaneously including intent and experience, Study 2 makes a methodological contribution related to the validity of student samples when analyzing entrepreneurial intent.

Effects of Mind-Body Training on Personality and Behavioral Activation and Inhibition System According to BDNF Val66Met Polymorphism.

ObjectiveIt has been known that mind-body training (MBT) can affect personality and behavior system as well as emotional well-being, but different effects of MBT on them has not been reported according to BDNF genetic polymorphism.MethodsHealthy subjects consisted of 64 subjects and the MBT group who practiced meditation regularly consisted of 72 practitioners. Participants completed neuroticism-extraversion-openness (NEO) Five-Factor Inventory and Behavioral Activation System/Behavioral Inhibition System (BAS/BIS) scales. All subjects were genotyped for the BDNF Val66Met polymorphism.ResultsIn the same genotypes of the BDNF Val/Val+Val/Met group, MBT group showed the increased Extraversion (p=0.033) and the increased Openness to Experience (p=0.004) compared to the control group. Also, in the same Met/Met carriers, MBT group exhibited the increase of Extraversion (p=0.008), the reduction of Neuroticism (p=0.002), and the increase of Openness to Experience (p=0.008) compared to the control group. In the same genotypes of the BDNF Val/Val+Val/Met group, MBT group showed the decreased BAS-Reward Responsiveness (p=0.016) and the decrease of BIS (p=0.004) compared to the control group. In the BDNF Met/Met group, MBT group increased BAS-Fun Seeking (p=0.045) and decreased BIS (p=0.013) compared to the control group.ConclusionMBT would differently contribute to NEO personality and BAS/BIS according to BDNF genetic polymorphism, compensating for different vulnerable traits based on each genotype.