Pavlovian conditioning of emotional responses to olfactory and contextual stimuli: A potential model for the development and expression of chemical intolerance

Tim Otto, Nicholas D. Giardino

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Chemical intolerance (CI) in humans is a poorly understood phenomenon of uncertain etiology, seemingly influenced by multiple factors both within and between affected individuals. Several authors have suggested that the development of CI in some individuals may be due, at least in part, to Pavlovian conditioning processes in which the expression of overt symptoms to certain substances reflects classically conditioned responses to previously neutral olfactory and contextual stimuli. In this paper, we describe the potential relationship between olfactory and contextual conditioning in experimental animals and the development and expression of CI in humans. Furthermore, as significant advances have been made in delineating the brain areas that underlie these learned responses, we also review recent research on the contributions of the amygdala and perirhinal cortical region to olfactory and contextual fear conditioning.

Original languageEnglish (US)
Pages (from-to)291-309
Number of pages19
JournalAnnals of the New York Academy of Sciences
Volume933
DOIs
StatePublished - Jan 1 2001

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • History and Philosophy of Science

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