Understanding Information Selection and Encoding from a Dynamic,Energy Saving,Evolved, Embodied,Embedded Perspective

This article uses the Dynamic Human Centric Communication Systems Theory to reconceptualize 4 selected attributes of attention from a human‐centric point of view. Information is defined with respect to its relationship in the environment to the human in terms of time and space. The 4 attributes considered are stability, imminence, motivational relevance, and task relevance. An experiment was conducted in which encoding was assessed using a signal detection analysis of a change detection task. Results supported the prediction that story and motivational relevance would have opposite effects on the encoding of stable information as a function of imminence. Differences in memory predictions made by traditional theoretical approaches and the DHCCST are discussed in light of the results of the experiment.     

Neurotoxicity of Kainate to the Hippocampus is not Accrued by Aging, Stress and Exogenous Corticosterone in Wistar Kyoto and Spontaneously Hypertensive Rats

It has been reported that a high corticosterone milieu can exacerbate various experimental insults to the nervous system, in particular to the hippocampus. However, in many of these studies the above milieu was attained by injecting corticosterone in doses (e.g. 10 mg/rat) producing supraphysiological concentrations. In the present study we have investigated whether high plasma corticosterone levels, such as those associated with aging or stress, potentiate a hippocampal excitotoxic insult. Male Wistar Kyoto (WKY) and Spontaneously Hypertensive Rats (SHR) at the age of 6, 12, 18 and 24 months (only WKY for the oldest age) were used. As in other strains, aging in these rats was marked by an increase in basal plasma corticosterone levels. Rats were infused in the dorsal hippocampus with kainic acid (0.035 μg/hippocampus) and the neuronal injury was evaluated within the areas CA3 and CA4. Results indicated that neither aging nor the hypertensive condition affected kainic acid neurotoxicity. In order to study the effect of stress, rats were stressed twice a day, with alternate types of stressors to avoid possible habituation, 3 days prior to and 3 days following the kainic acid infusion. Using this experimental paradigm the hippocampal damage in stressed rats was of the same degree as in non-stressed controls. In a complementary set of experiments, 6 month old WKY and SHR rats were injected with corticosterone (10 mg/rat s.c.). Four hours after administration plasma corticosterone levels in the range of 60-70 μg/100 ml were found. Moreover, a time-course study showed a plasma corticosterone peak in the range of 240 μg/100 ml. Daily corticosterone administration for 3 days before and 3 days after kainic acid infusion potentiated the hippocampal damage in 6 months old SHR but not in the WKY. These results demonstrate that elevation of corticosterone levels within physiological range does not exacerbate hippocampal kainate neurotoxicity and that pharmacological doses of glucocorticoid hormone, which produces plasma levels well above those observable in any physiopathological condition, might, with some strain dependency, potentiate a hippocampal neurotoxic insult.     

Dialectical Behavior Therapy With Prolonged Exposure for Adolescents: Rationale and Review of the Research

Among adolescents, interpersonal trauma has been associated with severe post-traumatic stress disorder (PTSD) and impairments across multiple domains of functioning (e.g., Derosa, Amaya-Jackson & Layne, 2013; Ford, Courtois, Steele, van der Hart, & Nijenhuis, 2005; van der Kolk, 2005). Such difficulties can include high-risk behaviors such as active suicidality (Middlebrooks & Audage, 2008) and nonsuicidal self-injurious behavior (NSSI; Hu, Taylor, Li, & Glauert, 2017). While there have been many advances in the treatment of trauma, treatment dropout for adolescents seeking trauma-informed treatment is predicted by diagnostic comorbidity and complexity (Sprang et al., 2013), as well as the number of traumatic events endorsed (Wamser-Nanney & Steinzor, 2016). Many traumatized adolescents with high-risk behaviors are referred to Dialectical Behavior Therapy (DBT-A). However, DBT-A does not yet include a specific, evidence-based protocol for treating PTSD, without which treatment gains may not be sustained for traumatized adolescents (Harned, Korslund, & Linehan, 2014). While Prolonged Exposure (PE) is indicated as the gold-standard treatment for PTSD and has proven effective for adolescents (PE-A; Foa, McLean, Capaldi, & Rosenfield, 2013), it has not yet been validated with adolescents who are actively suicidal. However, PE has successfully been integrated within DBT for adults with co-occurring Borderline Personality Disorder and PTSD (e.g., DBT-PE; Harned et al., 2014). Based upon this model, the current paper proposes the integration of DBT-A and PE-A to treat adolescents with interpersonal trauma who also present with high-risk behaviors. The paper discusses anticipated complications related to adapting this model for adolescents and provides direction for future research.     

Attributions About Morally Unreliable Characters: Relationship Closeness Affects Moral Judgments

Across 6 studies, relationship closeness strongly influenced moral attribution. First, we found that moral attributions were stronger when one interacted with an intimate compared to less intimate other. Second, we examined attributions about those who treat some people well and others badly. Moral character attributions were worse when an actor harmed an intimate relationship partner compared to a less close relationship partner. Further, the effect of relationship partner on moral attributions was influenced by perceivers’ beliefs about one’s true character. Perceivers were apt to believe that one’s true character is revealed when interacting with close others.     

On the relationship between negative affective priming and prefrontal cognitive control mechanisms

Although several studies have examined inhibition of affective stimuli, valence-dependent cognitive control effects remain poorly understood. Behavioural and functional imaging (functional magnetic resonance imaging) data were collected from 17 healthy participants to examine neural correlates of the Negative Affective Priming (NAP) task. We created relative ratio scores considering the reaction times of prime trials in order to assess the amount of interference after the presentation of negative and positive distracter words. Behavioural results showed an attenuated NAP effect for negative distracters compared to neutral stimuli. Furthermore, priming negative distracters generated more interference by reacting to the probe target than positive distracters. Neuroimaging data revealed a stronger prefrontal activation during negative NAP trials compared to positive NAP and neutral control trials, which was reflected in a heightened activation of superior and middle frontal gyrus as well as parietal cortex. The findings show the impact of negative distracters on prefrontal response, contributing to the understanding of NAP effects in healthy subjects.     

Lost in the Rhythm: Effects of Rhythm on Subsequent Interpersonal Coordination

Music is a natural human expression present in all cultures, but the functions it serves are still debated. Previous research indicates that rhythm, an essential feature of music, can enhance coordination of movement and increase social bonding. However, the prolonged effects of rhythm have not yet been investigated. In this study, pairs of participants were exposed to one of three kinds of auditory stimuli (rhythmic, arrhythmic, or white‐noise) and subsequently engaged in five trials of a joint‐action task demanding interpersonal coordination. We show that when compared with the other two stimuli, exposure to the rhythmic beat reduced the practice effect in task performance. Analysis of the behavioral data suggests that this reduction results from more temporally coupled motor movements over successive trials and that shared exposure to rhythm facilitates interpersonal motor coupling, which in this context serves to impede the attainment of necessary dynamic coordination. We propose that rhythm has the potential to enhance interpersonal motor coupling, which might serve as a mechanism behind its facilitation of positive social attitudes.     

Validity and Reliability of the Interpersonal Competence Questionnaire: Empirical Evidence from an Italian Study

Interpersonal competence is crucial to human life, and poor social functioning is a typical feature of various psychopathological conditions. Given the relevance of the construct, increasing attention has recently been paid to the Interpersonal Competence Questionnaire (ICQ; Buhrmester et al. 1988), a 40-item self-report measuring five domains of interpersonal competence. To provide additional data on the cross-cultural adaptability of the ICQ, we developed an Italian version and investigated its psychometric properties with two independent student samples. Respondents were mostly women (about three quarters), ranging in age from 18 to 57. Study 1 (n?=?408) tested factor structure, internal consistency, and convergent validity. Study 2 (n?=?59) investigated test-retest reliability. Taken together, the results of both these studies provided support for the cross-cultural applicability of the ICQ, and revealed interesting associations between interpersonal competence and constructs such as well-being, emotion dysregulation and empathy.     

Psychophysiological Responses of Sport Fans

The present study investigated psychophysiological differences in identified sport fans within the context of the biphasic theory of emotion (P. J. Lang, 1985). Forty participants, grouped into three levels of identification with the local university athletic teams, viewed five pictures from each of two categories (team-relevant sport and team-irrelevant sport). Self-identified sport fans rated team-relevant pictures as more pleasant and arousing compared to team-irrelevant pictures. The P3 component of the event-related potential to an irrelevant startle probe was diminished and heart-rate deceleration was enhanced during team-relevant pictures as a function of fan identification level, suggesting that these pictures evoked a motivated attentional state. Neither probe-P3 nor heart rate differed for team-irrelevant pictures. Lastly, increased positivity for slow cortical potentials was evident for team-relevant compared to team-irrelevant pictures, regardless of fan identification level. These results suggest the utility of psychophysiological measures in the study of sport fans, and for other positive emotions as well.