Discrimination nets as psychological models

Simulations of human cognitive processes often employ discrimination nets to model the access of permanent memory. We consider two types of discrimination nets—EPAM and positive-proper-only nets—and argue that they have insufficient psychological validity. Their deficiencies arise from negative properties, insufficient sensitivity to the discriminativeness of properties, extreme sensitivity to missing or incorrect properties, inefficiency in representing multiple knowledge domains, and seriality. We argue that these deficiencies stem from a high degree of test contingency in utilizing property information during acquisition and memory search. Discrimination nets are compared to other models that have less or no test contingency (e.g., PANDEMONIUM) and that thereby avoid the problems of discrimination nets. We propose that understanding test contingency and discovering psychologically valid ways to implement it will be central to understanding and simulating memory indexing in human cognition.     

Therapeutic Contract Program: preliminary report on a behavioral alternative to the token economy

The token economy has been the primary model for the behavioral management of inpatient populations. However, this basically operant approach seldom emphasizes the development of cognitive-coping skills to help patients more effectively manage stressors that result in hospitalization. The Therapeutic Contract Program (TCP) is described as an inpatient-treatment strategy that is designed to help foster such cognitive-coping and self-control skills. While external structure is provided by components of this program, subprograms of the TCP have as their goal the development of internally-attributed coping skills and self-perceptions of competence. This preliminary report describes the structure of the TCP, as well as planned and in-progress measures of program participation and treatment outcome.     

Comments on a standardized version of Luria's tests

Appreciation is expressed for the work of Golden's group in the selection of Luria's tests, the standardization of their administration, the collection of norms, and the evaluation of the reliability and validity of the Luria-Nebraska test battery. However, questions are raised concerning the ability of the test to efficiently handle topical diagnosis and to construct rehabilitation programs. Concern is expressed over the possible vulgarization of Luria's doctrine of functional systems and the loss of predictive power in Luria's tests through neglect of qualitative information and methodology. Suggestions are made as to how Luria's qualitative methodology might be incorporated in a standardized version of a neuropsychological examination.     

From 3 to 20: The early training project: By S. W. Gray,B. K. Ramsey,and R. A. Klaus. Baltimore: Univ. Park Press, 1982. xi + 344 pp., $27.95

A perspective on the controversy over the effects of early childhood intervention is provided. Gray, Ramsey, and Klaus' book is reviewed. The results of the study are commented upon, and implications for the continuing controversy about the effects of early childhood intervention are suggested.     

Ear asymmetry in recognition of unfamiliar voices

Female right-handed subjects were presented with a memory set consisting of five unfamiliar female voices. They were then tested with a recognition procedure in which samples of voice, memory set or novel, 2 or 4 sec in duration, were heard in one ear and a competing noise stimulus was heard in the other ear. There was an overall left-ear advantage in accuracy of recognition. This advantage held particularly for identifications of memory-set voices in the second half of trials. Internal analyses indicated that the left-ear advantage could not be attributed to greater retroactive interference during right-ear presentation. Congruent with studies of recognition of unfamiliar faces, the findings suggested right-hemisphere superiority in the recognition of unfamiliar voices.     

Sequential development of helping behavior: A cognitive-learning approach

It is suggested that cognitive, social-perspective, and moral skills, on the one hand, and a self-regulatory skill on the other, determine the extent, quantity, and quality of helping acts. A framework for the analysis of helping behavior development by integrating cognitive-development- and social-learning approaches is suggested. The framework proposes that altruistic behavior is a specific, highest-level kind of helping behavior. Helping behavior develops sequentially as its quality changes. The quality of the helping behavior is reflected in individuals' motivation to act. Empirical evidence supporting the suggested framework is presented, and the contribution of this framework for the study of prosocial behavior is discussed.     

Another look at the theoretical assumptions of adolescent egocentrism

We attempt in this paper to reevaluate the theoretical assumptions of D. Elkind's theory of adolescent egocentrism Child Development, 38, 1025–1034). We argue that the construct is not well placed in the ontogenetic context of Piagetian logical development, and that the theory cannot account for stage transition or the appearance of the imaginary audience (IA) and personal fable (PF) components. We argue that the IA and PF constructions are better understood as problems in interpersonal understanding. These components are reinterpreted in terms of stage sequence that describes the ontogenesis of interpersonal understanding. The advantages of this model are highlighted.     

Morphologic asymmetries of the face: A review

It has been suggested that asymmetries in the morphological properties of the face contribute to or produce asymmetries in facial emotional expression. Over 50 years of research on hard tissue, soft tissue, and facial surface asymmetries is reviewed here. Generally, it appears that if consistent asymmetry characterizes facial morphology, it is extremely small in magnitude or characterizes regions yet to be examined. In contrast, marked homology and asymmetry in regional size and area has been noted often. At present, it does not appear that asymmetry in facial morphology is associated with facial expressive asymmetry, with the latter more likely to be an outcome of functional brain asymmetry.