Posterior cingulate cortex: adapting behavior to a changing world

When has the world changed enough to warrant a new approach? The answer depends on current needs, behavioral flexibility and prior knowledge about the environment. Formal approaches solve the problem by integrating the recent history of rewards, errors, uncertainty and context via Bayesian inference to detect changes in the world and alter behavioral policy. Neuronal activity in posterior cingulate cortex - a key node in the default network - is known to vary with learning, memory, reward and task engagement. We propose that these modulations reflect the underlying process of change detection and motivate subsequent shifts in behavior.     

The Behavioral and Emotional Rating Scale: Test-Retest and Inter-Rater Reliability

Two studies are reported addressing the reliability of the Behavioral and Emotional Rating Scale (BERS). The first study investigated test-retest reliability over a two-week period to determine the stability of the measure over time. The second study investigated inter-rater reliability between two teachers or classroom aides who were familiar with a student to determine the consistency with which the measure can be used by different individuals. In each study, samples were drawn from populations of students identified with emotional or behavioral disorders as specified by federal statutes. Reliability coefficients in each study were above .80, the standard recommended for screening tests that are reported individually, and in most cases above .90. Implications for use of the BERS are discussed.     

Chimpanzee (Pan troglodytes) handedness: variability across multiple measures of hand use

This study examined intertask consistency in handedness across multiple measures of hand use in a sample of 187 chimpanzees (Pan troglodytes). Hand preferences for 2 to 6 measures were collected from the sample, and hand preference scores were derived on the basis of the individual hand preferences for each measure. Seven of 15 possible intratask correlations were significant, with some degree of clustering depending on the motor demands of the tasks. Two overall measures of handedness revealed population-level right-handedness in the chimpanzees, although the degree of bias was reduced for chimpanzees tested on more than 3 measures of hand use. The results are interpreted in the context of several recent studies that proposed theoretical models of handedness in nonhuman primates.     

Mindfulness and trauma: implications for treatment

Mindfulness, originally a construct used in Eastern spiritual and philosophical traditions, has found new utility in psychotherapy practice. Mindfulness practice has been recently applied to treatments of several psychological and health related problems, and research is showing successful outcomes in psychological interventions incorporating mindfulness practices. Several schools of psychotherapy have theorized why mindfulness may be an effective intervention. One population which would theoretically be benefited by mindfulness practice in treatment consists of those individuals who have experienced traumatic events and are exhibiting post-traumatic stress disorder and/or related correlates of past trauma. The present paper gives a general review of the application of mindfulness to clinical psychology interventions. Additionally, we explain how mindfulness is applicable to our integrative behavioral approach to treating trauma and its sequelae. Specifically, this paper will (a) give a general overview of the conceptions and applications of mindfulness to psychology and psychotherapy and provide a brief account of the concepts origins in eastern traditions; (b) discuss the theoretical conceptualization of clinical problems that may relate to the long-term correlates of trauma; (c) describe how mindfulness, acceptance and the therapeutic relationship can address trauma symptoms and discuss a modified treatment approach for trauma survivors that incorporates mindfulness and acceptance practices into traditional exposure treatment.

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Effects of alcohol on person perception: a social cognitive neuroscience approach

The acute effects of alcohol on cognitive processing of expectancy violations were investigated using event-related brain potentials and a cued recall task to index attentional and working memory processes associated with inconsistency resolution. As predicted, expectancy-violating behaviors elicited larger late positive potentials (LPP) and were recalled better than expectancy-consistent behaviors. These effects were moderated by alcohol and the valence of initial expectancies. For placebo group participants, positive targets performing negative behaviors elicited the largest LPP responses and were recalled best. For those in the alcohol groups, negative targets behaving positively elicited the largest LPP and recall responses. These findings suggest that alcohol does not globally impair working memory processes in person perception but instead changes the nature of valenced information processing. Findings are discussed in the context of alcohol's effects on working memory processes, reward sensitivity, and the prefrontal cortical structures thought to mediate them.     

Treatment Techniques for Adult Female Survivors of Childhood Sexual Abuse

The author reviews recent empirical, case study, and conceptual literature that examines or discusses treatment techniques for adult female survivors in individual therapy. These techniques are divided into the following 11 categories: relationship-building techniques; questioning: family-of-origin techniques; writing techniques; gestalt work, role playing, and psychodrama; transactional analysis and inner-child work: hypnotherapy and guided imagery; cognitive techniques; behavioral techniques; life-skills training; and other techniques. The author concludes with implications for researchers and practitioners.     

Responsiveness of pre- and non-delinquents to incentive aspects of a reinforcing event

A learning task, a six-position modification of a Fellows (1967) sequence, was used to examine the differences in responsiveness to symbolic and tangible incentives with 24 pre-delinquent and 25 non-delinquent 15-yr.-old boys. Under the low-incentive condition, only the symbolic incentive was available while under the high-incentive condition a symbolic and material reinforcer was employed. The high-incentive condition had no significant effect on the non-delinquents but did significantly affect the delinquents. Also, the high-incentive delinquent group performed similarly to both non-delinquent groups. Recommendations for research are given.