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ERIC Number: EJ819550
Record Type: Journal
Publication Date: 2008
Pages: 10
Abstractor: As Provided
ISSN: ISSN-0891-4222
Re-Emergence of Under-Selected Stimuli, after the Extinction of Over-Selected Stimuli in an Automated Match to Samples Procedure
Broomfield, Laura; McHugh, Louise; Reed, Phil
Research in Developmental Disabilities: A Multidisciplinary Journal, v29 n6 p503-512 Nov-Dec 2008
Stimulus over-selectivity occurs when one of potentially many aspects of the environment comes to control behaviour. In two experiments, adults with no developmental disabilities, were trained and tested in an automated match to samples (MTS) paradigm. In Experiment 1, participants completed two conditions, in one of which the over-selected stimulus was established, and then extinguished by pairing the over-selected stimulus with a novel stimulus and reinforcing the novel stimulus. In the control condition no extinction took place. Experiment 2 replicated this experiment using a between subjects design. In both studies, it was found that when the over-selected cue was extinguished, previously under-selected cues re-emerged to control behaviour in a re-test phase. These findings suggest that over-selectivity is not simply due to an attentional deficit, and that the re-emergence of the under-selected stimuli suggests that the previously under-selected stimuli were learnt about. Moreover, the results suggest that extinction of over-selected cues may have potential applied benefit as an intervention. (Contains 2 figures.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A