POSITIVE AND NEGATIVE STIMULUS RELATIONS IN SEVERELY RETARDED INDIVIDUALS CONDITIONAL DISCRIMINATION
POSITIVE AND NEGATIVE STIMULUS RELATIONS IN SEVERELY RETARDED INDIVIDUALS CONDITIONAL DISCRIMINATION
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DOI:
10.1016/0270-4684(84)90003-x
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发表时间:
1984-01-01
期刊:
影响因子:
--
通讯作者:
STODDARD, LT
中科院分区:
文献类型:
--
作者:
MCILVANE, WJ;WITHSTANDLEY, JK;STODDARD, LT
Four low-functioning mentally retarded subjects learned conditional discrimination performances in 2-comparison auditory-visual and visual-visual identity matching-to-sample paradigms. Auditory stimuli were spoken food names and visual stimuli were food items. The subjects were also taught, by means of a stimulus shaping program, to perform a variant of the auditory-visual task in which only 1 comparison was displayed on each trial: if the correct one was displayed, to select it; if an incorrect one, to select a blank alternative. Following the program, subjects performed auditory-visual conditional discriminations on the basis of relations between either the sample and the correct comparison (positive relations) or the sample and the incorrect comparison (negative relations). Additional tests, conducted in the single comparison format without further training, evaluated whether subjects would demonstrate positive and negative relations: in auditory-visual performances with foods that had a 2-comparison history, but had not been used in stimulus shaping; and in visual-visual identity performances. All subjects proved capable of such performances. The results suggested that acquisition of both positive and negative conditional relations may occur when developmentally-limited individuals are trained with matching-to-sample procedures. This outcome may be relevant to designing remedial communication programs for this population, especially those concerning generalized Yes-No concepts.