PDP-12 stimulus control and data collection for lateralized discrimination learning

A BASIC program that requires a minimum 8K core, 32K disk, KW12-A real-time clock, eight extended operation eight-mode DEC relays with peripheral interface, and user-generated special-function assembly language subroutines for clock and relay control was prepared, using advanced OS/8 BASIC, for conducting laterality studies. It is assumed that the user’s system has a dual tape drive. CRT, and Teletype. Modified IEE readouts have been used for stimulus presentation. Laterality effects and results suggesting application of the procedure in clinical neuropsychological testing have been achieved. This paper describes the rationale for development of the task, summarizes administration procedures, and provides flowcharts of the BASIC program and assembly language special functions, as well as a circuit diagram for the peripheral relay interface.     

Behavioral approaches to weight control: An updated review

Recent developments in the behavioral treatment of obesity were surveyed. Since the earlier review (Abramson, 1973) no studies of aversive therapy have been published. Three studies of covert sensitization have yielded discouraging results. Any positive effects of this technique appear to be the result of non-specific demand characteristics rather than aversive conditioning. Several demonstrations of the effects of therapist controlled reinforcement indicate that this technique can promote weight loss while the contingencies are in effect. The weight is rapidly regained, however, after the contingencies are withdrawn. It is concluded that self-control treatments, especially complex self-control, are the most consistently successful treatment approaches. Several methodological problems are presented and unresolved issues are discussed.     

Phenomenology and pastoral care

The author discusses phenomenology as a potential resource for pastoral care generally and then illustrates its implications in two specific areas of pastoral care. After a brief discussion of the development of phenomenology, he defines pastoral care and identifies its methodological problem. Phenomenology, it is argued, offers potentially helpful methods and interpretative categories in its attitude, its attempts at self-aware, ordered discernment, and its anthropology. It serves to militate against the temptation in pastoral care to understand human problems in terms of individual and social pathology, in the case of individuals, and to illumine the ways the community functions as a dimension of pastoral care.He is the author ofEcclesial Man.     

What do you do after you say hello? Observing,coding, and analyzing parent-infant interactions

Procedures for observing, coding, and analyzing parent-infant interactions are described. Sample data are presented to illustrate the outcome of these procedures and the manner in which developmental issues can be addressed using the hardware and software systems described.     

Performing item- and subject-based analyses using ALICE

By using the program ALICE, we are able to perform subject- and item-based analyses of randomly ordered sets of data without the usual computational effort. The program allows us to transform data and combine, partition, or systematically manipulate them by simple, readily interpretable instructions. Of equal importance to us is the ease with which students and staff learn to use the program independently.     

Modification of the rat's acoustic startle response by antecedent visual stimulation.

Male hooded and albino rats were exposed to a light flash followed at various temporal intervals by a startle-eliciting 117 db. (re 20 muN/m2) burst of white noise. The visual stimulus engendered startle response inhibition (maximally when the lead time was 64-250 msec) as well as startle response latency reduction (maximally when the lead time was 2-8 msec). The temporal functions for the effects of visual stimuli paralleled those previously reported for startle modification by acoustic events. Further study revealed that, given optimal lead times, inhibition is produced reliably by weaker visual stimuli (3 X 10-6 cd-sec/cm2) than latency reduction (3 X 10-4 cd-sec/cm2). This differential sensitivity to visual stimuli is also analogous to previously reported findings for events in the acoustic environment. It reveals that the neural mechanisms that mediate latency reduction and inhibition can be engaged by either acoustic or visual stimulation.