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Visual memory and visual mental imagery recruit common control and sensory regions of the brain

Visual memory and visual mental imagery recruit common control and sensory regions of the brain Separate lines of research have shown that visual memory and visual mental imagery are mediated by frontal-parietal control regions and can rely on occipital-temporal sensory regions of the brain. We used fMRI to assess the degree to which visual memory and visual mental imagery rely on the same neural substrates. During the familiarization/study phase, participants studied drawings of objects. During the test phase, words corresponding to old and new objects were presented. In the memory test, participants responded “remember,” “know,” or “new.” In the imagery test, participants responded “high vividness,” “moderate vividness,” or “low vividness.” Visual memory (old-remember) and visual imagery (old-high vividness) were commonly associated with activity in frontal-parietal control regions and occipital-temporal sensory regions. In addition, visual memory produced greater activity than visual imagery in parietal and occipital-temporal regions. The present results suggest that visual memory and visual imagery rely on highly similar––but not identical––cognitive processes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Cognitive Neuroscience Taylor & Francis

Visual memory and visual mental imagery recruit common control and sensory regions of the brain

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References (26)

Publisher
Taylor & Francis
Copyright
Copyright 2012 Psychology Press, an imprint of the Taylor & Francis Group, an Informa business
ISSN
1758-8936
eISSN
1758-8928
DOI
10.1080/17588928.2011.578210
pmid
24168646
Publisher site
See Article on Publisher Site

Abstract

Separate lines of research have shown that visual memory and visual mental imagery are mediated by frontal-parietal control regions and can rely on occipital-temporal sensory regions of the brain. We used fMRI to assess the degree to which visual memory and visual mental imagery rely on the same neural substrates. During the familiarization/study phase, participants studied drawings of objects. During the test phase, words corresponding to old and new objects were presented. In the memory test, participants responded “remember,” “know,” or “new.” In the imagery test, participants responded “high vividness,” “moderate vividness,” or “low vividness.” Visual memory (old-remember) and visual imagery (old-high vividness) were commonly associated with activity in frontal-parietal control regions and occipital-temporal sensory regions. In addition, visual memory produced greater activity than visual imagery in parietal and occipital-temporal regions. The present results suggest that visual memory and visual imagery rely on highly similar––but not identical––cognitive processes.

Journal

Cognitive Neuroscience – Taylor & Francis

Published: Mar 1, 2012

Keywords: fMRI; Long-term memory; Visual imagery

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