Temporally massed CS presentations generate more fear extinction than spaced presentations.

TitleTemporally massed CS presentations generate more fear extinction than spaced presentations.
Publication TypeJournal Article
Year of Publication2003
AuthorsCain, CK, Blouin AM, Barad M
JournalJournal of experimental psychology. Animal behavior processes
Volume29
Issue4
Pagination323-33
Date Published2003 Oct
ISSN0097-7403
KeywordsAnimals, Conditioning (Psychology), Extinction, Psychological, Fear, Inhibition (Psychology), Male, Mice, Mice, Inbred C57BL, Time Factors
Abstract

Rodent fear conditioning models both excitatory learning and the pathogenesis of human anxiety, whereas extinction of conditional fear is a paradigm of inhibitory learning and the explicit model for behavior therapy. Many studies support a general learning rule for acquisition: Temporally spaced training is more effective than massed training. The authors asked whether this rule applies to extinction of conditional fear in mice. The authors find that both short- and long-term fear extinction are greater with temporally massed presentations of the conditional stimulus (CS). The data also indicate that once CS presentations are sufficiently massed to initiate, or "induce," extinction learning, further CS presentations are more effective when spaced.

DOI10.3791/1786
Alternate JournalJ Exp Psychol Anim Behav Process