Functional referents and acoustic similarity revisited: the case of Barbary macaque alarm calls

Barbary macaques (Macaca sylvanus) utter "shrill barks" in response to disturbances in their surroundings. In some cases, the majority of group members react by running away or climbing up a tree. In many other instances, however, group members show no overt reaction to these calls. We conducted a series of playback experiments to identify the factors underlying subjects' responses. We presented calls given in response to dogs that had elicited escape responses and calls that had failed to do so. We also presented calls given in response to snakes and to the observer approaching the sleeping-trees at night. An acoustic analysis of the calls presented in the playback experiments (electronic supplementary material, audioclip S1) revealed significant differences among calls given in response to dogs, the observer approaching at night, and snakes. However, the analysis did not detect any differences between calls given in response to dogs that were related to whether or not they had elicited escape responses in the first place. Correspondingly, after playback of calls given in response to dogs, we observed no difference in subjects' responses in relation to whether or not the calls had initially elicited escape responses. Subjects showed startle or escape responses significantly more often after playbacks of calls given in response to dogs than after calls given in response to observers. Playbacks of calls given in response to snakes failed to elicit specific responses such as standing bipedally or scanning the grass. Although these findings may imply that responses depend on the external referent, they also indicate that there is no clear-cut relationship between the information available to the listeners and their subsequent responses. This insight forces us to extend current approaches to identifying the meaning of animal signals. Accepted after revision: 15 May 2001 Electronic Publication     

The Moderating Effect of Depression Symptoms on the Concordance between the Experience and Verbal Disclosure of Emotion

Within-person studies of emotional disclosure have found evidence of a disclosure-discordance effect of depression, whereby the positive association between the intensity of one’s emotional experience and verbal disclosure of that experience weakens with increasing depression symptoms. Because these previous studies have exclusively been naturalistic ones, we examined the disclosure-discordance effect of depression in the lab. Participants (N?=?115) completed a measure of depression symptoms and viewed a series of emotionally evocative photographs. Emotion-expressive behavior while viewing each photograph was rated by judges, subjective emotional experience was assessed via self-report, and emotional disclosure just after the photograph was viewed was rated by different judges. Multilevel analyses indicated that depression symptoms moderated the association between the behavioral (i.e., facial) expression of emotion intensity and disclosure of emotion. Moderation was not supported in analyses with self-reported emotional intensity as a predictor. These findings partly supported the disclosure-discordance effect, and they inform methods of empirically examining the effect of depression symptoms on the verbal disclosure of emotion.

     

The motivational system of task values and anticipated emotions in daily academic behavior

Motivation and Emotion - This study integrates theories of achievement motivation and emotion to investigate daily academic behavior in an undergraduate online course. Using cluster analysis and...     

What’s the point? Domestic dogs’ sensitivity to the accuracy of human informants

Animal Cognition - Dogs excel at understanding human social-communicative gestures like points and can distinguish between human informants who vary in characteristics such as knowledge or...     

Mindfulness Among Genetic Counselors Is Associated with Increased Empathy and Work Engagement and Decreased Burnout and Compassion Fatigue

Genetic counselors experience high rates of compassion fatigue and an elevated risk for burnout, both of which can negatively impact patient care and retention in the profession. In other healthcare professions, mindfulness training has been successfully used to address similar negative psychological sequelae and to bolster empathy, which is the foundation of our counseling work. We aimed to assess associations between mindfulness and key professional variables, including burnout, compassion fatigue, work engagement, and empathy. Data were collected via an anonymous, online survey that included validated measures of mindfulness and these key professional variables. The survey was completed by 441 genetic counselors involved in direct patient care. Half of the respondents (50.1%) reported engaging in yoga, meditation, and/or breathing exercises. Mindfulness was positively correlated with work engagement (r?=?0.24, p?<?0.001) and empathy (as measured through four subscales: perspective taking (r?=?0.15, p?=?0.002), empathic concern (r?=?0.11, p?=?0.03), fantasy (r?=???0.11, p?=?0.03) and personal distress (r?=???0.15, p?=?0.001)). Mindfulness was negatively correlated with compassion fatigue (r?=???0.48, p?<?0.001) and burnout (r?=???0.50, p?<?0.001). Given these findings, mindfulness training may be a valuable addition to graduate and continuing education for genetic counselors. The integration of mindfulness into the genetic counseling field will likely improve professional morale and well-being, while promoting workforce retention and bolstering the relational and counseling aspects of our clinical work.     

From the Laboratory to the Classroom: The Effects of Equivalence-Based Instruction on Neuroanatomy Competencies

Equivalence-based instruction (EBI) has been used to successfully teach college-level concepts in research laboratories, but few studies have examined the results of such instruction on classroom performance. The current study answered a basic question about the ordering of training stimuli as well as an applied question regarding the effects of EBI on classroom performance. Students recruited from a Behavioral Neuroscience course learned neuroanatomy concepts using EBI. Outcomes revealed that the ordering of stimuli did not differentially affect performance and that students who completed the tutorial scored significantly higher on the course’s final examination than did students who had not completed the tutorial. Implications for future classroom applications are discussed.     

Psychological Treatments for Symptoms of Posttraumatic Stress Disorder in Children,Adolescents, and Young Adults: A Meta-Analysis

Meta-analyses of the treatment of posttraumatic stress disorder (PTSD) in childhood and adolescence are restricted to specific trauma, selected interventions, and methodologically rigorous studies. This large meta-analysis quantifies the effects of psychological treatments for PTSD symptoms in children and adolescents. An extensive literature search yielded a total of 13,040 articles; 135 studies with 150 treatment conditions (N = 9562 participants) met the inclusion criteria (psychological interventions with children and/or adolescents with PTSD symptoms that report quantitative measures of symptom change). The mean effect sizes (ESs) for PTSD symptoms ranged from large to small, depending on the control condition. Cognitive behavioral therapy (CBT) yielded the highest ESs. Age and caretaker involvement were identified as moderators. CBT, especially when conducted in individual treatment with the inclusion of parents, is a highly effective treatment for trauma symptoms. Psychological treatments need to be modified to address younger patients’ specific needs.