Instrumental and hostile aggression in childhood disruptive behavior disorders

An analogue task of instrumental and hostile aggression during a competitive game was evaluated in a sample of clinically-referred 8-to 12-year-old aggressive boys. Similar to a prior task in a normative sample (Having, Wallace, & La Forme, 1979), both types of aggression increased during provocation as compared to baseline, indicating the success of the provocation manipulation, with moderate correlations between the two aggressive responses. The aggressive group with attention-deficit hyperactivity disorder (ADHD) and the aggressive group without ADHD each had higher rates of instrumental aggression than controls. Only the aggressive/ADHD group had higher rates of hostile aggression than controls. Parent Child Behavior Checklist ratings indicated a modest but significant unique relationship between instrumental aggression and delinquency. The high rate of both types of aggression in the aggressive/ADHD group suggests that comorbid ADHD and aggression may result in qualitative differences in aggressive behavior. The high rate of hostile aggression in the aggressive-ADHD group supports theoretical assumptions regarding the relationship of hostile aggression to poor impulse control.This research was supported in part by grants to the first author from the Medical College of Pennsylvania, the Allegheny-Singer Research Institute, NIMH First Award (MH4682), and support from NICHD Mental Retardation Research Center Core Center Grant (DH26979); and NIMH grants (MH40364 and MH00590) awarded to the second author. The authors are grateful to Marianne Torchinsky and Abby Michaleski for assistance in data collection. Preliminary data were presented at the annual meetings of the Association for Advancement of Behavior Therapy, New York, November 1988, and the Society for Research in Child and Adolescent Psychopathology, Costa Mesa, CA, January 1990.     

A developmental study of semantic elaboration and interpretation in recognition memory

Two experiments examined semantic elaboration and interpretation in recognition memory of 4-year-olds and college students. Subjects were presented pictures of color-specific and non-color-specific items, and then tested for their recognition of the chroma of the items. In Experiment 1, one-half of the presentation items were black and white and one-half colored, and testing always involved one black and white and one colored choice. In Experiment 2, all of the presentation items were colored, and testing always involved two colored choices. In both studies, the pattern of results of the two age groups was similar. Experiments 1 and 2 indicated that recognition judgments were based on representations that were elaborated with preexperimentally acquired semantic color information, and Experiment 2 also indicated that recognition judgments were based on representations that contained interpretive information about the appropriateness of the colors of the items. The results were considered to support and extend the view that when young children and adults share a common knowledge base, they are likely to engage in similar and extensive semantic processing.     

Effects of methylphenidate alone and in combination with behavior modification procedures on the behavior and academic performance of hyperactive children

Twenty hyperactive 6- to 9-year-old children of normal intelligence were studied in a half-day laboratory classroom in a 2-week period baseline-treatment-reversal design for behavior modification. Under double-blind conditions half the children were placed on .3 mg/kg of Ritalin and half on placebo for the entire program. The classroom program consisted of a group period with immediate reinforcement possible, and an individual time period without immediate reinforcement possible. Behavior modification caused a significant decrease in nonattending, out-of-seat, inappropriate vocalizing and inappropriate peer interaction behavior in the group period. Fidgeting, a nontargeted behavior, was not significantly decreased during this period but did signficantly decrease as a result of medication. No other drug effects occurred during this period. During the individual period, the results were essentially reversed. There were no significant behavior modification effects observed. Significant reductions resulted from medication in all behaviors except out-of-seat and fidgeting. Behavior modification alone significantly affected the two academic measures. No significant effects were seen on the Conners Abbreviated Teacher Rating Scale. No significant interactions were noted between medication and behavior modification.This study was supported by a grant from the Health Services and Mental Health Administration, Maternal and Child Health Service Project 920. Special thanks are due to Judy Racheleu, Charles Cunningham, Christopher P. S. Williams, Dan Lee, Russell Barkley, Ross Danielson, Sally Gray, Don Slyman, and Linda Shambeck.     

Reality-Testing a Vocational Choice: Congruence Between Self,Ideal, and Occupational Percepts Among Student Nurses

A total of 168 student nurses (24 each at 7 levels of vocational experience and preparation) Q-sorted 50 self-relevant, socially neutral statements to measure self-concept, ideal self-concept, and occupational role percept. Mean r's for congruence between ideal and occupational percepts tended to exceed and to reach higher levels of significance than corresponding r's for congruence between either self and ideal or self and occupational percepts. Congruences between self, ideal, and occupational percepts reach significance at p = .01 for graduate students, who have attained “adult” professional status. However, no significant relationship appears to obtain between either pre-professional or professional nursing experience and congruence between self and ideal, self and occupational role, or ideal and occupational role percepts. Results are interpreted in terms of a self-concept theory of vocational development.     

Listening In: How Parent-Child Communication Relates to Social and Physical Aggression

Journal of Child and Family Studies - In this study, we investigated the relations between features of parent-child conversations (neutral talk, positive and negative in-dyad and out-dyad talk) and...     

Radical anti-realism, Wittgenstein and the length of proofs

After sketching an argument for radical anti-realism that does not appeal to human limitations but polynomial-time computability in its definition of feasibility, I revisit an argument by Wittgenstein on the surveyability of proofs, and then examine the consequences of its application to the notion of canonical proof in contemporary proof-theoretical-semantics.     

Persistent versus Periodic Experiences of Social Victimization: Predictors of Adjustment

This study examined self-reports of social victimization and parent reports of adjustment for a sample followed from fourth through seventh grades. Different patterns of social victimization experiences were identified; of the 153 students (79 girls) with complete data, 24% reported chronic social victimization, 23% reported transient experiences of social victimization, and 53% reported being socially victimized at no more than one time point. We examined whether students who experienced persistent and periodic social victimization were at greater risk for internalizing problems than nonvictims. Persistently victimized children demonstrated continuously elevated levels of internalizing problems. Children who were not originally victimized by social aggression but became victimized with time did not demonstrate higher levels of internalizing problems than did nonvictims. Findings were mixed for those who escaped social victimization during this period. This research was supported by NIMH grants R01 MH63076 and K02 MH073616. We are deeply grateful for the participation of children and families in this study and for the cooperation of a local school system that wishes to go unnamed. We thank Mikal Galperin for her help with recruiting and retaining the sample.