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Biomedical subjects

H Weiner

Publications and source records attributed to H Weiner.

At least 271 records · Page 15Linked to original sources
PubMed1970

Instructional control of human operant responding during extinction following fixed-ratio conditioning.

When given pre-conditioning instructions correctly indicating the maximum number of reinforcements obtainable, subjects made few responses during extinction following FR 10 conditioning. More extinction responses occurred when the maximum-reinforcement instructions suggested that reinforcements were obtainable during extinction. The highest rates of responding during extinction were produced by subjects who had no maximum-reinforcement instructions.

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PubMed1969

Conditioning history and the control of human avoidance and escape responding.

Inter-subject differences in response rates under free-operant avoidance and escape schedules are commonly obtained from humans. Data are presented which demonstrate that such differences can be controlled experimentally by giving subjects different conditioning histories. Subjects given a fixed-ratio history avoided and/or escaped from "point-loss periods" at higher rates than subjects given a differential-reinforcement-of-low-rates history. History related differences in response rates were maintained during 40 hr of escape responding. For low-rates history subjects, response rates under escape contingencies decreased as the rate of point-loss periods decreased.

Journal Article↗
PubMed1969

Controlling human fixed-interval performance.

Both high and relatively constant rates of responding without post-reinforcement pauses and lower rates with pauses after reinforcement are produced by human subjects under fixed-interval (FI) schedules. Such FI rates and patterns may be controlled when subjects are provided with different histories of conditioning and different conditions of response cost (reinforcement penalties per response). Subjects with a conditioning history under ratio schedules typically produce high and relatively constant rates of responding under FI schedules; this responding does not change systematically with changes in FI value. In contrast, subjects with a history under schedules which produce little or no responding between reforcements [such as differential-reinforcement-of-low-rate (DRL) schedules] tend to pause after reinforcement and respond at low rates under FI schedules, whether or not they also have ratio conditioning histories; cost increases the likelihood of this type of performance. For DRL-history subjects, post-reinforcement pauses increase and response rates decrease as FI values increase.

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