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Return of fear in a human differential conditioning paradigm caused by a stimulus change after extinction.
Behav Res Ther. 2005 Mar; 43(3):357-71.BR

Abstract

In a human fear conditioning experiment, 32 participants were trained in a differential conditioning procedure with geometrical shapes as CS+ and CS- (four presentations each), and an electric shock as US. Measures of conditioned responding were skin conductance response (SCR) and retrospective US-expectancy ratings. For half of the participants (Generalization Group, GG), the subsequent extinction phase consisted of four nonreinforced presentations of generalization stimuli (GS+ and GS-). Participants from the Extinction control Group received an equal amount of nonreinforced presentations of the CSs. Finally, all participants were tested with the original CSs. The results from both measures clearly show an increase in the size of the discrimination upon the stimulus change after extinction in the GG. Because this pattern is not observed in the Extinction control Group, extinction performance appears to be somehow restricted to the perceptual characteristics of the extinction stimulus. Interestingly, the size of the conditioned SCR discrimination in the GG is not influenced by the stimulus change after acquisition. This observation points to a differential impact of stimulus change after acquisition vs. extinction treatment. The findings are discussed from the theoretical perspective of renewal and the clinical perspective of Return of Fear.

Authors+Show Affiliations

Vervliet B
Centre for the Psychology of Learning and Behaviour Therapy, Department of Psychology, University of Leuven, Tiensestraat 102, B-3000 Leuven, Belgium. bram.vervliet@psy.kuleuven.ac.be
Vansteenwegen D
No affiliation info available
Baeyens F
No affiliation info available
Hermans D
No affiliation info available
Eelen P
No affiliation info available

MeSH

Analysis of VarianceConditioning, ClassicalDiscrimination, PsychologicalExtinction, PsychologicalFearGalvanic Skin ResponseGeneralization, PsychologicalHumansModels, PsychologicalPsychological Tests

Pub Type(s)

Journal Article

Language

eng

PubMed ID

15680931

Citation

Vervliet, Bram, et al. "Return of Fear in a Human Differential Conditioning Paradigm Caused By a Stimulus Change After Extinction." Behaviour Research and Therapy, vol. 43, no. 3, 2005, pp. 357-71.
Vervliet B, Vansteenwegen D, Baeyens F, et al. Return of fear in a human differential conditioning paradigm caused by a stimulus change after extinction. Behav Res Ther. 2005;43(3):357-71.
Vervliet, B., Vansteenwegen, D., Baeyens, F., Hermans, D., & Eelen, P. (2005). Return of fear in a human differential conditioning paradigm caused by a stimulus change after extinction. Behaviour Research and Therapy, 43(3), 357-71.
Vervliet B, et al. Return of Fear in a Human Differential Conditioning Paradigm Caused By a Stimulus Change After Extinction. Behav Res Ther. 2005;43(3):357-71. PubMed PMID: 15680931.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Return of fear in a human differential conditioning paradigm caused by a stimulus change after extinction. AU - Vervliet,Bram, AU - Vansteenwegen,Debora, AU - Baeyens,Frank, AU - Hermans,Dirk, AU - Eelen,Paul, PY - 2003/09/19/received PY - 2003/12/05/revised PY - 2004/02/01/accepted PY - 2005/2/1/pubmed PY - 2005/5/25/medline PY - 2005/2/1/entrez SP - 357 EP - 71 JF - Behaviour research and therapy JO - Behav Res Ther VL - 43 IS - 3 N2 - In a human fear conditioning experiment, 32 participants were trained in a differential conditioning procedure with geometrical shapes as CS+ and CS- (four presentations each), and an electric shock as US. Measures of conditioned responding were skin conductance response (SCR) and retrospective US-expectancy ratings. For half of the participants (Generalization Group, GG), the subsequent extinction phase consisted of four nonreinforced presentations of generalization stimuli (GS+ and GS-). Participants from the Extinction control Group received an equal amount of nonreinforced presentations of the CSs. Finally, all participants were tested with the original CSs. The results from both measures clearly show an increase in the size of the discrimination upon the stimulus change after extinction in the GG. Because this pattern is not observed in the Extinction control Group, extinction performance appears to be somehow restricted to the perceptual characteristics of the extinction stimulus. Interestingly, the size of the conditioned SCR discrimination in the GG is not influenced by the stimulus change after acquisition. This observation points to a differential impact of stimulus change after acquisition vs. extinction treatment. The findings are discussed from the theoretical perspective of renewal and the clinical perspective of Return of Fear. SN - 0005-7967 UR - https://www.unboundmedicine.com/medline/citation/15680931/Return_of_fear_in_a_human_differential_conditioning_paradigm_caused_by_a_stimulus_change_after_extinction_ DB - PRIME DP - Unbound Medicine ER -