Student characteristics and choice of high school remembrance role.

This study investigated variables related to how students choose to be remembered after high school (remembrance role). Over four hundred students in small, medium, and large high schools in a midwestern state provided information on demographics, parental characteristics, personality traits, participation in high school activities, and remembrance role. Discriminant analysis revealed that sports participation, social activity participation, high school academic rank, mother's education, and masculinity were the variables most strongly associated with the four remembrance roles: brilliant student, most popular, athletic star, and leader in activities. The findings are discussed, and suggestions for future research are presented.     

Decision-making and associative color learning in harnessed bumblebees (Bombus impatiens)

In honeybees, the conditioning of the proboscis extension response (PER) has provided a powerful tool to explore the mechanisms underlying olfactory learning and memory. Unfortunately, PER conditioning does not work well for visual stimuli in intact honeybees, and performance is improved only after antennal amputation, thus limiting the analysis of visual learning and multimodal integration. Here, we study visual learning using the PER protocol in harnessed bumblebees, which exhibit high levels of odor learning under restrained conditions. We trained bumblebees in a differential task in which two colors differed in their rewarding values. We recorded learning performance as well as response latency and accuracy. Bumblebees rapidly learned the task and discriminated the colors within the first two trials. However, performance varied between combinations of colors and was higher when blue or violet was associated with a high reward. Overall, accuracy and speed were negatively associated, but both components increased during acquisition. We conclude that PER conditioning is a good tool to study visual learning, using Bombus impatiens as a model, opening new possibilities to analyze the proximate mechanisms of visual learning and memory, as well as the process of multimodal integration and decision-making.     

Cross-modal recognition of human individuals in domestic horses (Equus caballus)

This study has shown that domestic horses are capable of cross-modal recognition of familiar humans. It was demonstrated that horses are able to discriminate between the voices of a familiar and an unfamiliar human without seeing or smelling them at the same moment. Conversely, they were able to discriminate the same persons when only exposed to their visual and olfactory cues, without being stimulated by their voices. A cross-modal expectancy violation setup was employed; subjects were exposed both to trials with incongruent auditory and visual/olfactory identity cues and trials with congruent cues. It was found that subjects responded more quickly, longer and more often in incongruent trials, exhibiting heightened interest in unmatched cues of identity. This suggests that the equine brain is able to integrate multisensory identity cues from a familiar human into a person representation that allows the brain, when deprived of one or two senses, to maintain recognition of this person.     

Acoustic correlates of emotional dimensions in laughter: arousal, dominance, and valence

Although laughter plays an essential part in emotional vocal communication, little is known about the acoustical correlates that encode different emotional dimensions. In this study we examined the acoustical structure of laughter sounds differing along four emotional dimensions: arousal, dominance, sender's valence, and receiver-directed valence. Correlation of 43 acoustic parameters with individual emotional dimensions revealed that each emotional dimension was associated with a number of vocal cues. Common patterns of cues were found with emotional expression in speech, supporting the hypothesis of a common underlying mechanism for the vocal expression of emotions.     

Deradicalizing Detained Terrorists

Deradicalization of terrorists constitutes a critical component of the global “war on terror.” Unfortunately, little is known about deradicalization programs, and evidence for their effectiveness is derived solely from expert impressions and potentially flawed recidivism rates. We present the first empirical assessment of one such program: the Sri Lankan rehabilitation program for former members of the Liberation Tigers of Tamil Eelam (a terrorist organization that operated in Sri Lanka until their defeat in 2009). We offer evidence that deradicalization efforts that provided beneficiaries with sustained mechanisms for earning personal significance significantly reduced extremism after 1 year (Study 1). We also found that upon release, beneficiaries expressed lower levels of extremism than their counterparts in the community (Study 2). These findings highlight the critical role of personal significance in deradicalization efforts, offer insights into the workings of deradicalization, and suggest practical methods for improving deradicalization programs worldwide.     

Choosing Your Words and Pictures Wisely: When Do Individuation Instructions Reduce the Cross‐Race Effect?

Recognition accuracy for faces of an individual's own race typically exceeds recognition accuracy for other‐race faces. The categorization–individuation model (Hugenberg, Young, Bernstein, & Sacco, 2010) attributes this cross‐race effect to motivation to encode distinctive features of own‐race faces but category defining features for other‐race faces. Two experiments using different stimuli tested hypotheses generated from this model with both Black and White participants. For White participants, instructions to individuate reduced the cross‐race effect in both studies but did not eliminate it in Study 1. Black participants did not exhibit the cross‐race effect in either study, but individuation instructions improved both their same‐race and other‐race sensitivity. The present quality of interracial contact moderated the relationship between instructions and other‐race sensitivity for both Black and White participants in Study 1 but not in Study 2. Overall, results provide mixed support for this social categorization model. Copyright © 2015 John Wiley & Sons, Ltd.     

Bias and learning in temporal binding: Intervals between actions and outcomes are compressed by prior bias

It has consistently been shown that agents judge the intervals between their actions and outcomes as compressed in time, an effect named intentional binding. In the present work, we investigated whether this effect is result of prior bias volunteers have about the timing of the consequences of their actions, or if it is due to learning that occurs during the experimental session. Volunteers made temporal estimates of the interval between their action and target onset (Action conditions), or between two events (No-Action conditions). Our results show that temporal estimates become shorter throughout each experimental block in both conditions. Moreover, we found that observers judged intervals between action and outcomes as shorter even in very early trials of each block. To quantify the decrease of temporal judgments in experimental blocks, exponential functions were fitted to participants’ temporal judgments. The fitted parameters suggest that observers had different prior biases as to intervals between events in which action was involved. These findings suggest that prior bias might play a more important role in this effect than calibration-type learning processes.     

Emotion-Focused Therapy for Couples in the Treatment of Depression: A Pilot Study

Emotion-focused therapy (EFT) for couples was compared to pharmacotherapy in the treatment of major depressive disorder. Eighteen distressed couples in which the female partner met diagnostic criteria for major depressive disorder were randomly assigned to 16 weekly sessions of emotion-focused therapy or pharmacotherapy with desipramine, trimipramine, or trazadone. Twelve couples completed the study. Both interventions were equally effective in symptom reduction. There was some evidence that females receiving EFT made greater improvement after the conclusion of treatment than those receiving pharmacotherapy. The results suggest EFT might be useful in the treatment of comorbid major depressive disorder and relational distress.