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Multimodal integration for the representation of space in the posterior parietal cortex

Andersen, Richard A. (1997) Multimodal integration for the representation of space in the posterior parietal cortex. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 352 (1360). pp. 1421-1428. ISSN 0962-8436. PMCID PMC1692052. doi:10.1098/rstb.1997.0128.

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The posterior parietal cortex has long been considered an ‘association’ area that combines information from different sensory modalities to form a cognitive representation of space. However, until recently little has been known about the neural mechanisms responsible for this important cognitive process. Recent experiments from the author's laboratory indicate that visual, somatosensory, auditory and vestibular signals are combined in areas LIP and 7a of the posterior parietal cortex.The integration of these signals can represent the locations of stimuli with respect to the observer and within the environment. Area MSTd combines visual motion signals, similar to those generated during an observer's movement through the environment, with eye–movement and vestibular signals. This integration appears to play a role in specifying the path on which the observer is moving. All three cortical areas combine different modalities into common spatial frames by using a gain–field mechanism. The spatial representations in areas LIP and 7a appear to be important for specifying the locations of targets for actions such as eye movements or reaching; the spatial representation within area MSTd appears to be important for navigation and the perceptual stability of motion signals.

Item Type:Article
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URLURL TypeDescription CentralArticle
Andersen, Richard A.0000-0002-7947-0472
Additional Information:© 1997 Royal Society of London. Published online 29/10/1997; Published in print 10/1997. Discussion Meeting Issue ‘What are the parietal and hippocampal contributions to spatial cognition?’ organized by N. Burgess and J. O'Keefe.
Issue or Number:1360
PubMed Central ID:PMC1692052
Record Number:CaltechAUTHORS:20200403-093624325
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Official Citation:N. Burgess, J. Oapos;Keefe and Richard A. Andersen 1997Multimodal integration for the representation of space in the posterior parietal cortexPhil. Trans. R. Soc. Lond. B352, 1421–1428.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102309
Deposited By: Tony Diaz
Deposited On:03 Apr 2020 16:44
Last Modified:16 Nov 2021 18:10

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