Cited by 579Visual perception and processing mechanismsFace Recognition and PerceptionMemory Processes and Influences

Distributed Neural Systems for the Generation of Visual Images

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Ishai, Alumit, Ungerleider, Leslie G., Haxby, James V.·2000·Neuron

Abstract

Visual perception of houses, faces, and chairs evoke differential responses in ventral temporal cortex. Using fMRI, we compared activations evoked by perception and imagery of these object categories. We found content-related activation during imagery in extrastriate cortex, but this activity was restricted to small subsets of the regions that showed category-related activation during perception. Within ventral temporal cortex, activation during imagery evoked stronger responses on the left whereas perception evoked stronger responses on the right. Additionally, visual imagery evoked activity in parietal and frontal cortex, but this activity was not content related. These results suggest that content-related activation during imagery in visual extrastriate cortex may be implemented by "top-down" mechanisms in parietal and frontal cortex that mediate the retrieval of face and object representations from long-term memory and their maintenance through visual imagery.

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Authors
Ishai, A., Ungerleider, L. G., & Haxby, J. V.
Affiliations
National Institutes of Health (US)
Corresponding author
Ishai, Alumit
Venue
Neuron
Publisher
Elsevier BV
Published
2000-12
Volume
28
Issue
3
Pages
979-990
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2022613290
Cited by
579
References
4
Citations by year
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FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Iris (University of Trento) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
visual imagery, visual perception, ventral temporal cortex, extrastriate cortex, object recognition, face perception, top-down control, hemispheric lateralization, parietal cortex, frontal cortex, long-term memory retrieval
MeSH terms
Adult, Brain Mapping, Cerebral Cortex, Corpus Striatum, Female, Frontal Lobe, Humans, Imagination, Functional Laterality, Magnetic Resonance Imaging, Male, Nerve Net, Occipital Lobe, Parietal Lobe, Pattern Recognition, Visual, Temporal Lobe, Visual Pathways, Visual Perception, Recognition, Psychology

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