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Olfactory Context Dependent Memory: Direct Presentation of Odorants
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Intentional and incidental odour-colour binding in working memory.

Andrew J Johnson1, Richard J Allen2

  • 1Department of Psychology, Faculty of Science & Technology, Bournemouth University, Poole, UK.

Memory (Hove, England)
|September 22, 2022
PubMed
Summary

This study explored odour-colour binding in working memory. Results suggest that while odour-colour bindings can form, their functionality may be limited compared to visual feature binding.

Keywords:
Olfactory memorybindingserial position effectsworking memory

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Sensory Perception

Background:

  • Feature binding in working memory is well-studied for visual and auditory stimuli.
  • Limited research exists on how olfactory information is integrated and bound in working memory.

Purpose of the Study:

  • To investigate odour-colour binding within working memory using established feature binding paradigms.
  • To compare the binding of olfactory and visual features in memory.

Main Methods:

  • Three experiments tested memory for intentionally and incidentally formed odour-colour pairings.
  • Participants included young adults performing recall and recognition tasks.
  • Manipulations involved explicit instructions, prioritized encoding, and incidental learning.

Main Results:

  • Young adults demonstrated above-chance recall of odour-colour pairings with a recency advantage when instructed to remember.
  • Limited evidence was found for prioritization affecting the serial position function.
  • Incidental odour-colour binding showed no difference in recognition accuracy between bound and unbound probes.

Conclusions:

  • Odour-colour bindings can be formed in working memory.
  • The functionality of odour-colour binding in working memory appears limited compared to visual feature binding.
  • This research pioneers the examination of olfactory feature binding in working memory.