Temperature reinforcement for visual discrimination training in baby chicks

A fully automated training apparatus, using thermoregulation as performance incentive, was constructed to train baby chicks on visual discrimination and reversal problems. In the base condition, the S is bathed in cold air in a small training cubicle. Two stimuli are back-projected onto two display windows according to a pseudorandom balanced schedule. A peck at the positive stimulus gives convective as well as radiant heat reward with adjustable temperature and duration. A peck at the negative stimulus merely advances the program to the next trial. Permanent printout records give trial-to-trial information on response choice and latency. Performance data of 64 Ss are reported.     

Maternal Depression and Parent Management Training Outcomes

This study examines the impact of maternal depression on reductions in children’s behavior problems severity following implementation of the Brief Behavioral Intervention—a brief, manualized parent management training treatment. The parents of 87 children aged 2–6 years of age received parent management training at a metropolitan hospital. Parents of participants completed measures of externalizing behavior and maternal depression. The association between pre-post treatment change in externalizing behavior and maternal depression was examined using an autoregressive cross-lagged model. Results showed that self-reported maternal depressive symptoms at pre-treatment negatively influenced the overall magnitude of reduction of reported externalizing behaviors in children following treatment. Results indicate that aspects of family functioning not specifically targeted by parent management training, such as maternal depression, significantly affect treatment outcomes. Clinicians providing parent management training may benefit from assessing for maternal depression and modifying treatment as indicated.     

Intergroup Conflict

This article outlines some of the main social‐psychological bases of intergroup conflict, illustrating the many ways in which social psychology can contribute to the study of conflict. The most convincing theoretical account is provided by perspectives that concentrate on the distinct nature of intergroup phenomena (especially social identity theory). Two of the most promising social‐psychological interventions to reduce intergroup conflict are also reviewed. The first is based on improving contact between members of previously hostile groups; the second attempts to change the structure of social categorizations (via decategorization, recategorization, and crossed categorization). This social‐psychological perspective is proposed as a key part of a necessary, multi‐disciplinary approach to intergroup conflict.     

Evaluation of a conflict-resolution and problem-solving programme to enhance adolescents' self-concept

The effectiveness of an intervention programme, initially designed to enhance the self-concept and motivation of gifted underachieving girls, was evaluated for students identified as having a low self-concept and social relationship difficulties. Twenty male and female secondary-school students were randomly assigned to either a treatment or a control group. The programme, called ABLE (Attribution, Behaviour, Life skills Education), incorporates problem-solving, conflict resolution, and a multidimensional framework to investigate adolescents' self-concept formation. The adolescents in the study made significant improvements in the areas of general self-concept, physical appearance self-concept, and total self-concept. Teaching conflict-resolution and problem-solving skills had a beneficial influence on self-concept. The results are discussed in terms of the relevance of the programme and its application to school and counselling interventions.     

Visual discrimination of shape by Humans. II: (I) matrix figures and (II) minimal area changes

Two experiments are described in which an attempt was made systematically to vary two dimensional shapes according to a pre-arranged design. In the first, subjects were presented tachistoscopically with pairs of “reflexive matrix figures” whose members were either horizontally or vertically orientated; and it was found that reaction times to horizontal pairs were faster than to vertical ones, a result that is in keeping with previous findings. In the second experiment two ensembles were devised that were alike in every respect save that one group was extended or reduced vertically while the other varied horizontally. Performance was better on the vertically orientated ensemble. These findings are briefly related to former studies and the pre-eminence of vertical symmetry is underlined.     

The Use of Humor When Counseling African American College Students

According to the literature, humor is a critical tool to enhance the counseling process because it can reduce stress, build rapport, and aid in the increase of the client's self‐efficacy. In recent years, the critical nature of using humor appropriately from a cultural perspective has been explored. In this article, the authors further explore the cultural foundations, purpose, effectiveness, and implications of using humor when counseling African American college students.     

Knowledge of natural kinds in semantic dementia and Alzheimer's disease

We examined the semantic impairment for natural kinds in patients with probable Alzheimer's disease (AD) and semantic dementia (SD) using an inductive reasoning paradigm. To learn about the relationships between natural kind exemplars and how these are distinguished from manufactured artifacts, subjects judged the strength of arguments such as "Humans have a chemical called sebum. Therefore, frogs have a chemical called sebum." These judgments depend on subjects' perception of the similarity between the familiar objects named in the premise and the conclusion. Controls rated arguments generalizing from a natural kind to an artifact as significantly weaker than arguments generalizing from one natural kind to another natural kind. SD patients demonstrated a graded profile of generalization without evidence of a categorical distinction between natural kinds and artifacts. AD patients' judgments also suggested more difficulty than controls at distinguishing between natural kinds and artifacts. Both SD patients and AD patients resembled controls in their judgments of arguments where both objects are from the natural kinds category. Semantic knowledge thus appears to be sufficiently preserved in both AD and SD to support within-category similarity judgments. We suggest that SD patients may be impaired in part at identifying the features critical to diagnosing membership in a semantic category, while AD patients' performance is consistent with their semantic categorization deficit.     

Information structure expectations in sentence comprehension

In English, new information typically appears late in the sentence, as does primary accent. Because of this tendency, perceivers might expect the final constituent or constituents of a sentence to contain informational focus. This expectation should in turn affect how they comprehend focus-sensitive constructions such as ellipsis sentences. Results from four experiments on sluicing sentences (e.g., The mobster implicated the thug, but we can't find out who else) suggest that perceivers do prefer to place focus late in the sentence, though that preference can be mitigated by prosodic information (pitch accents, Experiment 2) or syntactic information (clefted sentences, Experiment 3) indicating that focus is located elsewhere. Furthermore, it is not necessarily the direct object, but the informationally focused constituent that is the preferred antecedent (Experiment 4). Expectations regarding the information structure of a sentence, which are only partly cancellable by means of overt focus markers, may explain persistent biases in ellipsis resolution.     

Assessment of dysfunctional beliefs in borderline personality disorder

This study had two aims: to test the hypothesis that borderline personality disorder (BPD) patients hold numerous dysfunctional beliefs associated with a variety of Axis II disorders, and to construct a BPD belief scale which captures these beliefs. Beliefs were measured using the Personality Belief Questionnaire (PBQ) which is designed to assess beliefs associated with various personality disorders, although not specifically BPD. Eighty-four BPD patients and 204 patients with other personality disorders (OPD) were randomly split into two study samples. Fourteen PBQ items were found to discriminate BPD from OPD patients in both samples. These items came from the PBQ Dependent, Paranoid, Avoidant, and Histrionic scales and reflect themes of dependency, helplessness, distrust, fears of rejection/abandonment/losing emotional control, and extreme attention-seeking behavior. A BPD beliefs scale constructed from these items showed good internal consistency and diagnostic validity among the 288 study patients. The scale may be used to assist in diagnosis and cognitive therapy of BPD.