Acute stress eliminates female advantage in detection of ambiguous negative affect

The human stress response evolved to maximize an individual's probability of survival when threatened. The present study addressed whether physical danger modulates perception of an unrelated ambiguous threat and, if so, to what extent this response is sex- specific. The authors utilized a first-time tandem skydive as a stressor, which had been previously validated as producing a highly-controlled, genuinely stressful environment. In a counter-balanced within-subjects design, participants wore a virtual reality helmet to complete an emotion-identification task during the plane's ascent (stress condition) and in the laboratory (control condition). Participants were presented static male faces morphed between 20-80% aggression, which gradually emerged from degraded images. Using a binary forced-choice design, participants identified each ambiguous face as aggressive or neutral. Results showed that participants characterized emotion more rapidly under stress versus control conditions. Unexpectedly, the results also show that while women were more sensitive to affect ambiguity than men under control conditions, they exhibited a marked decrease in sensitivity equivalent to men while under stress.     

The dynamic relationships of affective synchrony to perceptions of situations

Most theories of affect predict that affects of opposite valence should be negatively correlated (de-synchronous) or independent (asynchronous) within individuals. Such theories were challenged by the finding that the association between energetic arousal and tense arousal ranged from de-synchrony to synchrony (Rafaeli, Rogers, &; Revelle, 2007). In this paper, we report two experience-sampling studies employing cell-phone text-messaging aimed at further exploring individual differences in affective experience. Results showed that within-person relationships between energetic arousal and tense arousal ranged from de-synchrony to synchrony, but that within-person relationships between Pleasant and Unpleasant affect varied from strong de-synchrony to weak de-synchrony. Individual differences in within-person EA-TA associations were related to perceiving threatening situations as incentives and to interactions between affective traits.     

A tutorial introduction to Bayesian models of cognitive development

We present an introduction to Bayesian inference as it is used in probabilistic models of cognitive development. Our goal is to provide an intuitive and accessible guide to the what, the how, and the why of the Bayesian approach: what sorts of problems and data the framework is most relevant for, and how and why it may be useful for developmentalists. We emphasize a qualitative understanding of Bayesian inference, but also include information about additional resources for those interested in the cognitive science applications, mathematical foundations, or machine learning details in more depth. In addition, we discuss some important interpretation issues that often arise when evaluating Bayesian models in cognitive science.     

Sudden gains in treatment-as-usual couple therapy for military veterans

Previous studies of couple therapy have conceptualized change as a gradual process. However, there is growing evidence that, for many clients, the majority of gains in other treatment modalities are often achieved between just 2 sessions. Isolating the frequency, nature, and predictors of these sudden gains (SGs) in couple therapy can add to a growing understanding of how and why couple therapy works. In a sample of 67 couples receiving treatment-as-usual couple therapy in two Veterans Affairs hospitals, 25% of individuals experienced a SG in relationship satisfaction. The magnitude of these SGs were large (d = 1.62) and fully explained the total pre-post change for individuals who experienced them. Individuals with SGs showed significantly greater satisfaction gains during therapy; however SGs were not related to relationship satisfaction or relationship status at 18-month follow-up. SGs were predicted by the content of the previous session, putative change mechanisms of communication, intimacy, and behavior, as well as the partner's SGs during the same period. Results suggest that SGs are an important component of change during couple therapy for some individuals, challenging the assumption of continuous change in previous studies. In addition, predictors of SGs were generally consistent with theoretical and empirical examinations of mechanisms of change in couple therapy.     

Acceptance and Commitment Therapy for generalized anxiety disorder in older adults: a preliminary report

Some evidence suggests that acceptance-based approaches such as Acceptance and Commitment Therapy (ACT) may be well-suited to geriatric generalized anxiety disorder (GAD). The primary goal of this project was to determine whether ACT was feasible for this population. Seven older primary-care patients with GAD received 12 individual sessions of ACT; another 9 were treated with cognitive-behavioral therapy. No patients dropped out of ACT, and worry and depression improved. Findings suggest that ACT may warrant a large-scale investigation with anxious older adults.     

Exploring negative emotion in women experiencing intimate partner violence: shame, guilt, and PTSD

This study explored the association of shame and guilt with PTSD among women who had experienced intimate partner violence (IPV). Sixty-three women were assessed by a research clinic serving the mental health needs of women IPV survivors. Results indicated that shame, guilt-related distress, and guilt-related cognitions showed significant associations with PTSD but global guilt did not. When shame and guilt were examined in the context of specific forms of psychological abuse, moderation analyses indicated that high levels of both emotional/verbal abuse and dominance/isolation interacted with high levels of shame in their association with PTSD. Neither guilt-related distress nor guilt-related cognitions were moderated by specific forms of psychological abuse in their association with PTSD. These data support the conceptualization of shame, guilt distress, and guilt cognitions as relevant features of PTSD. Results are discussed in light of proposed changes to diagnostic criteria for PTSD.     

A self-validation perspective on the mere thought effect

Self-generated thought has an important impact on attitude change, with repeated demonstrations of increased opportunity for thought about an attitude object increasing attitude extremity. The traditional explanation for this mere thought effect is that more time to think allows people to produce more attitude-consistent thoughts, which polarize their attitudes. Expanding on this structural perspective, the current research explores a metacognitive account for the effect of time on attitude polarization. Three experiments demonstrate that thought confidence plays an independent mediating role in the mere thought effect (Experiment 1), that it accounts for reversals in the mere thought effect when people have too much time to think (Experiment 2), and that this reversal is tied to the difficulty people have retrieving thoughts when too much time is provided (Experiment 3). Thus, taking metacognitive features of thought into account sheds new light on self-persuasion in the mere thought paradigm.     

Psychosocial Adjustment and Substance Use of Cambodian and Vietnamese Immigrant Youth

Southeast Asians living in the United States are a unique Asian immigrant population. They are considered one of the "newer" Asian immigrant groups, tend to be less affluent compared with their East and South Asian counterparts, and are steadily growing in number (U.S. Bureau of the Census, 2000). Unfortunately, few studies exist specifically about Southeast Asian immigrants. The lack of studies, coupled with the community's growing mental health issues, suggests the need for increased research on this population. This study contributes to the literature by examining the extent to which identification with Vietnamese or Cambodian culture, peer relationships, and coping behaviors affect substance use among Cambodian and Vietnamese immigrant youth. A sample of 102 participants, age 12-18 years, completed self-report measures regarding these variables. Overall, results indicate that identification with one's culture of origin and coping behaviors moderate the relationship between deviant peer association and substance use. Results are discussed within a contextual model of problem behavior among Southeast Asian youth.