The generality of overselectivity in developmentally disabled children

A growing body of research suggests that low Mental Age (MA) autistic and retarded children show a unique stimulus control deficit, one that may cause many or most of their behavioral deficiencies. This problem, stimulus overselectivity, is evidenced when a child responds only to a restricted portion of the stimulus environment when compared with normal children. The purpose of this study was to assess whether this overselectivity is general across situations or whether it is restricted to certain stimulus/task conditions. Eight autistic children, who evidenced overselectivity on a preassessment task, and 8 normal children with similar MA levels participated. All children were trained on 3 tasks to determine if overselectivity varied as a function of different stimulus conditions. Each of the 3 tasks involved training a child to respond to (i.e., touch) a card containing a circle (S +) and to avoid a blank (S ?) card. In each case, the circle comprised a series of dots. The difference between the 3 circles (tasks) was the distance between the successive dots making up each circle. Also, in the minimal separation condition the dots were smaller in size and greater in number than in the larger separation conditions. Of concern was whether autistic children learned about the gestalt (i.e., the circle), which required attention to multiple cues, or whether children would overselect and respond to the dots. The results showed that (1) stimulus overselectivity was found not to be a generalized deficit in autistic subjects; instead, it varied as a function of the stimulus variables; and (2) the stimulus variables manipulated in this study similarly influenced the responding of both normal and autistic children. The implications of these data for a theory of overselectivity are discussed.     

Creative thinking and juvenile delinquency: a study of delinquent and nondelinquent youth on the Torrance Tests of Creative Thinking.

Using the T.T.C.T. this study examined the creative thinking of 32 delinquent and 32 nondelinquent adolescent males. The delinquent group was composed of juveniles on parole status. The nondelinquent group was composed of public school students. On the variables of IQ, age, and socioeconomic class, t-test results indicated no significant differences, except on socioeconomic class, between the groups. Analysis of variance procedures were performed to determine the possibility of an interaction between levels of intelligence and delinquent status with regard to verbal and figural creativity test scores. There were no significant main effects or interaction between IQ and adjudication status with respect to figural creativity. There was a significant main effect due to adjudication status for the dependent variable of verbal creativity scores, respectively while blocking on the intelligence variable. The results were parallel to the ANOVAS which did not specifically control for the intelligence variable between the two groups.     

Cognitive styles in the development of medical careers

Recent research has shown that academic choice and achievement may be partly a function of the student's standing on the field-dependence-independence cognitive-style dimension. The results of two longitudinal studies suggest that information about field dependence-independence may be of value for student guidance in the medical setting. The first, a study of college undergraduates who early expressed an interest in medicine, showed that these cognitive styles play a discernible role in determining who will eventually enter medical school. The second, a study of medical students, showed that field-dependent and field-independent students subsequently tend to choose different medical specialties. These results are consistent with cognitive-style theory, which proposes that field-independent people will choose vocations that require cognitive restructuring skills, whereas field-dependent people will choose vocations that require greater social-interpersonal involvement.     

Conceptual preference for thematic or taxonomic relations: A nonmonotonic age trend from preschool to old age

Two experiments examined the development of conceptual preference for either thematic (functional) or taxonomic relationships in a match-to sample task. In Experiment 1 twenty subjects from each of five age groups—preschool to old age—completed a method of triads preference test where they were forced to choose a thematic or taxonomic match. Young and old individuals preferred the thematic parings while school age and college adults preferred the taxonomic matches. Although the Age × Preference relation was pronounced, the majority of subjects at all ages could provide adequate justification of both the preferred and nonpreferred relationship. In addition, kindergarten subjects in Experiment 2 could readily be trained to respond on the basis of the nonpreferred mode. These data suggest that the pervasive shift in conceptual responding from syntagmatic to paradigmatic, thematic to taxonomic, etc., represents a change in preference rather than a shift to a fundamentally new way of organizing knowledge.     

The role of the church in the community based care of the chronically mentally disabled: Reclaiming an historic ministry

The perplexing circumstance of the chronically mentally disabled in the community poses both a challenging ministry and significant learning opportunity for the church. Historically the church once served as a primary resource in their community life. When care shifted to the hospital in the nineteenth century, chaplains then ministered on behalf of the church. The institutional setting later spawned the clinical training and pastoral care movement, the mental patient an essential teacher and beneficiary. With the locus of care having recently returned to the community, the church can now provide social, pastoral and spiritual resources, collaborate in deinstitutionalization with the mental health delivery system, and return to a ministry of learning with the less resourceful.The Reverend Anderson serves as Chaplain Supervisor, Connecticut Mental Health Center, Box 1842, New Haven, Connecticut 06508, and as a Lecturer in Pastoral Theology at Yale Divinity School. The author wishes to thank Dr. Donald H. Williams and Fr. Henri Nouwen for their advice and encouragement during the preparation of this article.     

Relations among cognitive,semantic, and syntactic variables in children's comprehension of the minimum distance principle: A 2-year developmental study

Theoretical issues regarding cognitive aspects of the semantic interpretation of two syntactic structures were examined. A 2-year study was conducted investigating possible developmental trends in children's sentence-processing strategies. Experimental materials incorporated two levels of role expectations and two levels of syntactic complexity. Subjects were initially 6–10 years old; 12 original subjects from each age group were retested a year later. Exceptional and typical syntactic structures were not of significantly different difficulty either year. Semantic and cognitive complexity, as reflected in the two levels of expectation, was significant both years (p<0.001). Performance improved, over the 12-month period, in all but the 7- to 8-year-old group (p<0.005). Results are discussed with reference to cognitive strategies in sentence processing.This article is based on research reported at the annual meeting of the Northeastern Educational Research Association, Ellenville, New York, October 29–31, 1975.     

Marijuana Revisited

This review examines recent research on the psychological effects of marijuana. The article contains material on potency, research problems, use patterns in the United States, and expectancy, as well as a review of research on acute effects, including psychosis, toxic delerium, acute anxiety, and brain damage. Nonacute effects are also examined, with material on studies of amotivational syndrome, intellectual functioning, memory, sexual activity, and driving. Research on marijuana's relationship to other drugs and to criminal behavior is also evaluated. Implications for counselors are discussed. Counselors are urged to help provide accurate information to users and to encourage an informed-decision approach. The significance of marijuana use to value and life-style choice and the counselor's role in considering marijuana law changes are evaluated.     

Adaptation in distance perception with head-movement parallax serving as the veridical cue

When head-movement parallax functioned as the sole veridical distance cue during exposure to spectacles that altered the eyes’ oculomotor adjustments, sizable adaptation was obtained. This result showed that a discrimination of the distances of 60 and 30 cm can be based on head-movement parallax. Using adaptation in demonstrating that head-movement parallax can serve as a distance cue circumvents the problem that the presence of accommodation normally presents when such a demonstration is attempted. The usual contamination of head-movement parallax with accommodation is avoided, because accommodation is altered by the spectacles and does pot function as a veridical cue along with head-movement parallax.     

Perceived objectivity and the effects of evaluative reinforcement upon compliance and self-evaluation in blacks

Two experiments were conducted to investigate the effects of positive and negative reinforcements upon black college students. In the first experiment subjects received either positive or negative reinforcement from a black or a white Evaluator. Behavioral change (compliance) was greater in response to negative reinforcement from a black Evaluator than in response to negative reinforcement from a white Evaluator, while there were no divergent effects of Evaluator's Race upon compliance with positive reinforcement. The same pattern obtained in subjects' self-evaluations. The second experiment offered a test of the hypothesis that the objectivity of black Evaluators was perceived as greater than that of white Evaluators, and that a manipulation aimed at equating the Evaluators on objectivity would attenuate the effects of Evaluator's Race upon compliance and self-evaluation in response to negative reinforcement. These hypotheses were generally supported by the results.