A model of conditional discrimination performance (Davison & Nevin, 1999) is combined with the notion that unmeasured attending to the sample and comparison stimuli, in the steady state and during disruption, depends on reinforcement in the same way as predicted for overt free-operant responding by behavioral momentum theory (Nevin & Grace, 2000).…

Studies using fear-conditioning paradigms have found that anxiety patients are more conditionable than individuals without these disorders, but these effects have been demonstrated inconsistently. It is unclear whether these findings have etiological significance or whether enhanced conditionability is linked only to certain anxiety…

Five experiments were conducted to determine whether properties inherent in some training procedures may subtly influence the adaptability of skilled performance of complex tasks. The first two experiments assessed the insensitivity of low-rate performances. Examined in the third experiment was the issue of whether instructions that focus…

Designed to present theory as a functional aspect, this air conditioning and refrigeration curriculum guide is comprised of nine units of instruction. Unit titles include (1) Job Orientation, (2) Applying for a Job, (3) Customer Relations, (4) Business Management, (5) Psychometrics, (6) Residential Heat Loss and Heat Gain, (7) Duct Design and…

The paper describes the use of an operant procedure to assess the speech perception of 11 young (7 to 35 months old) hearing impaired children and 11 normally hearing subjects. Subjects were presented with a repeating background stimulus and conditioned to turn their head on presentation of a contrasting syllable. The head-turning responses were…

The combined effects of methylphenidate (Ritalin) and a token reinforcement program in controlling the classroom behavior of 16 hyperactive, institutionalized retarded youngsters (9- to 15-years-old) was investigated. (Author)

Three groups of eight institutionalized severely and profoundly retarded males (mean ages 9-14 years) were studied to determine the effects of enhancement of the physical and social environment and behavior modification training upon acquisition of self help skills. (Author/CL)

A food satiation procedure was used in two experiments to decelerate the frequency of vomiting responses in two profoundly retarded adults who exhibited well-defined vomiting-ruminatory response chains. (Author)

Early conditioning, occupational counseling, social attitudes, institutional limitations, and attitudinal limitations are several factors discussed which have contributed to the formation of traditional customs and habits concerning occupational trends for women in agriculture. (Author/BP)

The mother of a 21-year-old mentally retarded boy, who also suffers from frequent petit mal seizures, describes the developmental and behavioral problems which led her to seek institutional placement. (LH)