Physiological markers of challenge and threat mediate the effects of performance-based goals on performance

We predicted that adopting a performance-approach vs. performance-avoidance goal would lead to physiological responses characteristic of psychological states of challenge vs. threat appraisals, respectively. Furthermore, we predicted that these states would mediate the effects of goals on performance. Twenty-seven undergraduate females performed a task described as identifying either exceptionally strong performers (performance-approach goal) or exceptionally weak performers (performance-avoidance goal). Participants’ cardiovascular reactivity (CVR) was recorded while they performed the task. As predicted, participants in the performance-approach goal condition performed better on the task than did those in the performance-avoidance goal condition. Also as predicted, those in the former condition exhibited a challenge pattern of CVR whereas those in the latter condition exhibited a threat pattern of CVR. Furthermore, physiological responses mediated the effects of performance-based goals on performance.     

The effects of arousal reappraisal on stress responses,performance and attention

Background and Objectives: This study examined the effects of arousal reappraisal on cardiovascular responses, demand and resource evaluations, self-confidence, performance and attention under pressurized conditions. A recent study by Moore et al. [2015. Reappraising threat: How to optimize performance under pressure. Journal of Sport and Exercise Psychology, 37(3), 339–343. doi:10.1123/jsep.2014-0186] suggested that arousal reappraisal is beneficial to the promotion of challenge states and leads to improvements in single-trial performance. This study aimed to further the work of Moore and colleagues (2015) by examining the effects of arousal reappraisal on cardiovascular responses, demand and resource evaluations, self-confidence, performance and attention in a multi-trial pressurized performance situation.

Design and Methods: Participants were randomly assigned to either an arousal reappraisal intervention or control condition, and completed a pressurized dart throwing task. The intervention encouraged participants to view their physiological arousal as facilitative rather than debilitative to performance. Measures of cardiovascular reactivity, demand and resource evaluations, self-confidence, task performance and attention were recorded.

Results: The reappraisal group displayed more favorable cardiovascular reactivity and reported higher resource evaluations and higher self-confidence than the control group but no task performance or attention effects were detected.

Conclusion: These findings demonstrate the strength of arousal reappraisal in promoting adaptive stress responses, perceptions of resources and self-confidence.     

The effect of gender stereotype activation on challenge and threat motivational states

The effect of gender stereotype activation on challenge/threat motivational states was examined. Male and female participants completed a difficult math test described as either gender-biased or gender-fair, while continuous cardiovascular data were recorded. During the math test, women in the gender-biased condition exhibited a threatened motivational state, whereas women in the gender-fair condition exhibited challenge. The cardiovascular pattern of data was reversed for men, with men exhibiting challenge when a gender bias was implied, but threat when it was not. Motivational implications of stereotype threat and psychophysiological measurement are discussed.     

Neural bases of moderation of cortisol stress responses by psychosocial resources

Psychosocial resources have been tied to lower psychological and biological responses to stress. The present research replicated this relationship and extended it by examining how differences in dispositional reactivity of certain neural structures may underlie this relationship. Two hypotheses were examined: (a) psychosocial resources are tied to decreased sensitivity to threat and/or (b) psychosocial resources are associated with enhanced prefrontal inhibition of threat responses during threat regulation. Results indicated that participants with greater psychosocial resources exhibited significantly less cortisol reactivity following a stress task, as predicted. Analyses using functional magnetic resonance imaging revealed that psychosocial resources were associated with greater right ventrolateral prefrontal cortex and less amygdala activity during a threat regulation task but were not associated with less amygdala activity during a threat sensitivity task. Mediational analyses suggest that the relation of psychosocial resources to low cortisol reactivity was mediated by lower amygdala activity during threat regulation. Results suggest that psychosocial resources are associated with lower cortisol responses to stress by means of enhanced inhibition of threat responses during threat regulation, rather than by decreased sensitivity to threat.     

The influence of identity leadership principles on followers' challenge and threat states and motor performance

It has been theorized that a follower can draw upon support from individuals they identify with when approaching competitive situations to improve psychophysiological challenge states, and performance potential. As such, we examine how perceptions of identity leadership influence resource appraisals, cardiovascular reactivity, and performance in a pressurised motor task across two laboratory experiments. In Study 1, 80 participants took part in a within-subjects double-blind design with two conditions: identity leadership (IL) vs no identity leadership (no IL). Results indicated that when instructions align with identity leadership principles (vs. not), followers reported greater resource appraisals to, challenge cardiovascular reactivity to, and motor performance within a motivated performance situation. In Study 2, 120 participants completed a 2 (identity leadership: IL vs. no IL) X 2 (appraisal: challenge vs. threat) between-subjects double-blind design. It was found that when instructions aligned to identity leadership (vs. not), followers reported greater resource appraisals and motor performance. When leaders used challenge (vs. threat) instructions this led to challenge cardiovascular reactivity on approach to competition. Advancing leadership and stress theory, we provide evidence that perceived identity leadership is salient for followers' resource appraisals, cardiovascular reactivity, and motor performance.     

Challenge and threat states: Cardiovascular,affective, and cognitive responses to a sports-related speech task

This study examined the relationship among cardiovascular responses indicative of challenge and threat states, self-efficacy, perceived control, and emotions before an upcoming competition. Using a repeated-measures design, 48 collegiate athletes talked about an upcoming competition (sport-specific speech task) and the topic of friendship (control speech task), whilst cardiovascular responses (heart rate, preejection period, cardiac output, and total peripheral resistance) were collected and self-report measures of self-efficacy, perceived control, and emotions completed. Findings showed that participants with a physiological threat response reported higher levels of self-efficacy and excitement. Further, none of the other emotions or the cognitive appraisals of challenge and threat predicted cardiovascular patterns indicative of either a challenge or threat state. Thus, cardiovascular responses and self-report measures of self-efficacy, perceived control, and emotions did not correlate in the manner predicted by the theory of challenge and threat states in athletes. This finding may reflect methodological aspects, or that perhaps highly efficacious individuals believe they can perform well and so the task itself is more threatening because failure would indicate under-performance.     

Motivational Systems and Stress-Related Cardiovascular Reactivity

This study examined the relation of motivational systems to patterns of autonomic responses to stress. Specifically, we examined patterns of physiological response resulting from differential activation of motivational systems for behavioral approach and behavioral inhibition. We also examined the relation of these motivational systems to threat and challenge responses to potential stress. Self-report, cardiac measures (i.e., pre-injection period, or PEP, and heart rate, or HR), and blood pressure (i.e., systolic blood pressure, or SBP, and diastolic blood pressure, or DBP) measures reliably distinguished between an experimental condition facilitating behavioral approach and an experimental condition facilitating coactivation of behavioral approach and behavioral inhibition systems. Vascular (e.g., total peripheral resistance, or TPR) and electrodermal (e.g., electrodermal response, or EDR) measures, however, did not vary by condition. We discuss the results in relation to other research on motivational factors as they relate to stress and cardiovascular reactivity.     

How attributional ambiguity shapes physiological and emotional responses to social rejection and acceptance

The authors examined White and Black participants' emotional, physiological, and behavioral responses to same-race or different-race evaluators, following rejecting social feedback or accepting social feedback. As expected, in ingroup interactions, the authors observed deleterious responses to social rejection and benign responses to social acceptance. Deleterious responses included cardiovascular (CV) reactivity consistent with threat states and poorer performance, whereas benign responses included CV reactivity consistent with challenge states and better performance. In intergroup interactions, however, a more complex pattern of responses emerged. Social rejection from different-race evaluators engendered more anger and activational responses, regardless of participants' race. In contrast, social acceptance produced an asymmetrical race pattern--White participants responded more positively than did Black participants. The latter appeared vigilant and exhibited threat responses. Discussion centers on implications for attributional ambiguity theory and potential pathways from discrimination to health outcomes.     

Dreading the boards: stress response to a competitive audition characterized by social-evaluative threat

The capacity of psychosocial stressors to provoke the hypothalamic–pituitary–adrenal axis has been demonstrated to vary depending upon a number of psychological factors. Laboratory stressors characterized by social-evaluative threat are proposed to be the most efficacious in the elicitation of a cortisol stress response. Salivary cortisol, cardiovascular, and subjective responses of 16 healthy adults facing a naturalistic stressor characterized by social-evaluative threat (competitive performance auditions) were examined. Audition exposure was sufficient to provoke significant cortisol, arterial blood pressure (systolic and diastolic), and subjective stress responses. Cortisol response reactivity (area under the curve with respect to increase [AUCi]) also correlated with participants' subjective rating of social-evaluative threat. The competitive performance audition context is therefore considered a promising context in which to further explore cortisol responsivity to social-evaluative threat.     

The Biopsychosocial Model of Challenge and Threat: Using the Heart to Measure the Mind

The biopsychosocial model of challenge and threat (BPS) holds that during active goal pursuit, psychological processes reliably lead to specific patterns of cardiovascular responses. Because psychological experience during goal pursuit is not otherwise easily accessible, using cardiovascular responses to infer psychological states can provide valuable insight. In this context, challenge results from evaluating high resources and low demands, whereas threat results from evaluating low resources and high demands. Both challenge and threat lead the heart to beat faster and harder than during rest, but challenge results in dilation in arteries and more blood pumped, whereas threat results in constriction and less blood pumped. This article summarizes the BPS, presents recent research applications, and discusses remaining questions and future directions, including how research from other theoretical perspectives may clarify the nature of task engagement and how the BPS can inform the study of resilience to stressors.     

Cardiovascular responses to open-field stress in rats: sex differences and effects of gonadal hormones

We studied sex differences in cardiovascular responses to stress using a new radio-telemetry model in which freely-moving Spontaneously Hypertensive rats (SHR) are exposed to open-field novelty stress. This model allowed simultaneous assessment of cardiovascular and behavioural responses to psychological stress. Female SHR in the diestrous stage of their estrous cycle had markedly greater pressor and tachycardic responses to open-field exposure when compared to either female rats not in diestrous or male SHR. Treatment of ovariectomized SHR with estrogen alone had no significant effect on cardiovascular reactivity, while a combined treatment of estrogen and progesterone slightly, but significantly attenuated their pressor response to open-field stress. In addition, treatment of castrated male rats with testosterone significantly enhanced their pressor responses to stress when compared to values obtained before treatment. None of the hormone treatments had any significant effect on heart rate responses to stress. Neither at different stages of the estrous cycle nor after hormone treatments were there any marked changes in behavioural responses in the open-field, making it unlikely that the differences in cardiovascular stress responses were caused by changes in behavioural activity. These data demonstrate differences in cardiovascular stress responses that seem to be dependent on the stage of the estrous cycle. They suggest that particularly androgens, such as testosterone, may enhance pressor responses to stress. On the other hand, a combination of estrogen and progesterone, rather than estrogen alone, may have a small attenuating effect on cardiovascular reactivity.     

Perceiver threat in social interactions with stigmatized others

The extent to which stigmatized interaction partners engender perceivers' threat reactions (i.e., stigma-threat hypothesis) was examined. Experiments 1 and 2 included the manipulation of stigma using facial birthmarks. Experiment 3 included manipulations of race and socioeconomic status. Threat responses were measured physiologically, behaviorally, and subjectively. Perceivers interacting with stigmatized partners exhibited cardiovascular reactivity consistent with threat and poorer performance compared with participants interacting with nonstigmatized partners, who exhibited challenge reactivity. In Experiment 3, intergroup contact moderated physiological reactivity such that participants who reported more contact with Black persons exhibited less physiological threat when interacting with them. These results support the stigma-threat hypothesis and suggest the utility of a biopsychosocial approach to the study of stigma and related constructs.     

Cardiovascular correlates of emotional expression and suppression: do content and gender context matter?

Three studies examined cardiovascular (CV) responses during emotional expression with empathically responsive strangers. Study 1 demonstrated that self-relevant emotional expression fostered CV reactivity consistent with challenge. Study 2 manipulated content of discussion by assigning participants to 1 of 4 conditions: emotional, nonemotional, emotional suppression, nonemotional suppression. In same-sex dyads. emotional expression elicited CV challenge reactivity whereas emotional suppression evoked CV threat reactivity, both compared with appropriate control groups. In opposite-sex dyads, however, emotional expression engendered CV threat. Because same- and opposite-sex disclosures differed, Study 3 controlled the content of emotional expression while manipulating gender context. Results confirmed findings from the first 2 studies, indicating that both context and content of emotional expression influenced CV effects. Findings are discussed within a theoretical challenge and threat perspective.     

The threat vs. challenge of car parking for women: How self- and group affirmation affect cardiovascular responses

This study examines cardiovascular responses indicating challenge (vs. threat) during motivated performance of women under social identity threat. Low gender identified women should primarily be concerned with their personal identity and self-worth, leading them to benefit from self-affirmation under social identity threat. Highly identified women, conversely, should care more for the value of their group and benefit more from group affirmation. Among 64 female participants social identity threat was induced by emphasizing gender differences in car-parking ability. Then, participants received an opportunity to affirm the self or the group and worked on a car-parking task. During this task, cardiovascular challenge versus threat responses were assessed according to the biopsychosocial model (Blascovich, 2008). Results confirmed predictions by showing that self-affirmation elicited cardiovascular patterns indicating challenge in low identifiers, while group affirmation elicited challenge in high identifiers. Theoretical implications for work on social identity are discussed.     

Challenge versus threat effects on the goal–performance relationship

This study tested the situational effects of goals and stress on the performance of complex tasks and on adaptation to change in the task. Difficult goals often exceed the individual's resources and thus create stress. However, stress may be appraised as either challenge or threat. Challenge is experienced when there is an opportunity for self-growth with available coping strategies, whereas threat is experienced when the situation is perceived as leading to failure with no available strategies to cope with it. We hypothesized that participants who appraised the situation as a challenge would perform better and adapt better to changes under difficult goal conditions, as compared with general goals or strategy goals. By contrast, threat appraisals would be better addressed by strategy goals rather than difficult goals. One hundred and fifty five students performed a task, which required their making predictions concerning the value of 120 companies' stocks based on three manipulated cues. We used a three by three by two factorial design in which goals, stress, and change (as a repeated factor) were varied to test the hypotheses. Results supported the main hypotheses and demonstrated that the same level of goal difficulty may lead to high or low performance and adaptation to change depending on the appraisal of the situation as challenging or threatening. The theoretical and practical implications of these findings are further discussed.     

Stress reactivity and exercise training in premenopausal and postmenopausal women.

Examined the influence of ovarian function on psychophysiological stress responses and determined if aerobic exercise reduced stress reactivity. Fifty premenopausal and postmenopausal women initially were subjected to a public speaking task and an ice-on-the-forehead procedure, during which time their blood pressure and heart rate were monitored and continuous blood samples were obtained. Subjects also underwent aerobic fitness evaluations with a maximum-exercise treadmill test. Subjects were then randomly assigned to a 12-week exercise program of either aerobic exercise (e.g., walking and jogging at a prescribed exercise intensity) or non-aerobic strength and flexibility training and were then reevaluated. Results indicated that postmenopausal women exhibited lower resting epinephrine levels but greater epinephrine reactivity to the speaking task compared to the premenopausal women. There were no differences between premenopausal and postmenopausal women with respect to cardiovascular or catecholamine responses during the cold challenge. Premenopausal and postmenopausal women also achieved comparable improvements in aerobic fitness. However, results of the mental stress testing were complex and provided only partial support for the role of aerobic exercise in reducing stress responses.     

认知老化对于老年人决策过程的影响:动机的调节作用

有关老化和决策制定的研究并没有发现一致的年龄差异。从决策过程的角度,论述了老化对于决策制定的多层面影响。从认知层面来讲,流体认知能力的衰减会使老年人在决策制定前搜索更少的信息,使用非补偿性策略,基于属性进行信息搜索和比较;晶体认知能力的相对保持则在一定情况下弥补了这种消极影响;从动机层面来讲,关注情绪管理目标的老年人会倾向于寻求更多积极的信息,为了避免权衡诱发的消极情绪而更多地使用非补偿性策略。动机对于认知老化的消极影响有调节作用。具体来说,社会情绪选择理论和选择性投入假设认为,当决策任务符合老年人的社会目标,即情绪管理目标时,能够激活老年人投入认知资源的动机,从而缓解认知资源的衰减对于老年人决策表现的消极影响。未来的研究需要通过实验设计进一步探索动机与认知的交互作用,将多种过程追踪技术结合起来,明晰动机和认知能力在老年人决策制定中的作用。另外考虑到在社会目标方面的年龄差异,对于老年人决策质量的衡量应该更加注重主观决策质量。     

Asymmetry in resting intracortical activity as a buffer to social threat

Social rejection can create powerful changes in people's brains and bodies. In the study reported here, we examined brain-based individual differences associated with buffering against cardiovascular threat responses to social rejection. Using EEG source-localization techniques, we examined differences in intracortical asymmetry. We predicted that individuals with greater left relative to right dorsolateral prefrontal activity would show a more approach-motivated response to social rejection. Eighty-four female participants were randomly assigned to one of three stressful situations: social rejection, social evaluation without rejection, or self-evaluation. Among participants assigned to the social-rejection condition, greater left relative to right prefrontal intracortical activity at baseline was associated with more adaptive cardiovascular profiles and more self-reported approach-oriented emotions. Participants in the other conditions did not show these relationships. Our data are the first to show that social context matters when attempting to link individual differences in cortical asymmetry with approach-related cardiovascular and emotional outcomes.     

群际威胁与社会认知基本维度自我肯定对自我评价的影响

两个实验探索群际威胁情境下表达性和能动性自我肯定对个体自我评价的影响。实验一诱发群际威胁,操作表达性自我肯定,测量被试的自我评价水平。实验二与实验一采用相同的方法,诱发群际威胁,操作能动性自我肯定,之后测量自我评价水平。两个实验均发现,群际威胁组的自我评价显著低于控制组;在群际威胁情境下,表达性自我肯定组和能动性自我肯定组的自我评价显著高于无自我肯定组。研究表明,群际威胁虽然是群体水平的感知,但会对个体水平的自我评价产生消极影响,通过社会认知基本维度进行自我肯定能有效缓解群际威胁对自我评价的消极影响。自我肯定对群际威胁与自我评价之间关系的作用机制还需要进一步探讨。     

Probabilistic Inferences Under Emotional Stress: How Arousal Affects Decision Processes

Many models of decision making neglect emotional states that could affect individuals' cognitive processes. The present work explores the effect of emotional stress on people's cognitive processes when making probabilistic inferences. Two contrasting hypotheses are tested against one another: the uncertainty‐reduction and attention‐narrowing hypotheses of how emotional stress affects decision making. In the experimental study, emotional stress was induced through the use of highly aversive pictures immediately before each decision. Emotional state was assessed by both subjective (state anxiety, arousal, and pleasantness ratings) and objective (skin conductance) measures. The results show that emotional stress impacts decision making; in particular, emotionally aroused participants seem to have focused on the most important information and selected simpler decision strategies relative to participants in a control condition. The results are in line with the attention‐narrowing hypothesis and suggest that emotional stress can impact decision making through limited predecisional information search and the selection of simpler decision strategies. Copyright © 2015 John Wiley & Sons, Ltd.