Cited by 998Motor Control and AdaptationVisual perception and processing mechanismsMemory and Neural Mechanisms

Memory related motor planning activity in posterior parietal cortex of macaque

Gnadt, J. W., Andersen, R. A.·1988·Experimental Brain Research

Abstract

Unit recording studies in the lateral bank of the intraparietal cortex (area LIP) have demonstrated a response property not previously reported in posterior cortex. Studies were performed in the Rhesus monkey during tasks which required saccadic eye movements to remembered target locations in the dark. Neurons were found which remained active during the time period for which the monkey had to withhold eye movements while remembering desired target locations. The activity of the cells was tuned for eye movements of specific direction and amplitude, and it was not necessary for a visual stimulus to fall within the response field. The responses appeared to represent a memory-related motor-planning signal encoding motor error. The relation of the activity to the behavior of the animal suggests that the response represents the intent to make eye movements of specific direction and amplitude.

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Crossref · 10.1007/bf00271862

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26 of 26 references verified0 citation errors · 0 not checkable

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  • Many LIP neurons respond to visual stimuli that are the target of a planned saccadic eye movement.

    “Many neurons in the lateral intraparietal area (LIP) respond to visual stimuli that are the target of a planned saccadic eye movement (Gnadt and Andersen, 1988;Colby et al., 1996;Platt and Glimcher, 1997).”
  • LIP neurons exhibited spatially selective persistent activity that predicted whether an eye movement was planned into the response field on a memory guided saccade task.

    “These neurons exhibited spatially selective persistent activity that predicted whether an eye movement was planned into the response field (RF) of the neuron on a memory guided saccade task(29–31).”
  • In an oculomotor delayed response task, neurons in both LIP and prefrontal cortex display directionally tuned persistent activity.

    “For instance, in an oculomotor delayed response task, neurons in both LIP and prefrontal cortex display directionally tuned persistent activity (Gnadt and Andersen, 1988; Funahashi et al., 1989).”

    From Decision Making in Recurrent Neuronal Circuits (2008) · cites this paper as Gnadt and Andersen, 1988

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Authors
Gnadt, J. W., & Andersen, R. A.
Affiliations
Salk Institute for Biological Studies (US)
Venue
Experimental Brain Research
Published
1988-03
Volume
70
Issue
1
Pages
216-220
ISSN
  • 0014-4819 (ISSN-L)
  • 1432-1106
OpenAlex
W1569395231
Cited by
998
References
26
Citations by year
2026: 7 · 2025: 16 · 2024: 12 · 2023: 15 · 2022: 23 · 2021: 24 · 2020: 20 · 2019: 26 · 2018: 21 · 2017: 26 · 2016: 29 · 2015: 28 · 2014: 28 · 2013: 26 · 2012: 29
FWCI
10.36
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Eye Institute (EY 05522)
  • National Institute of Neurological Disorders and Stroke (NS-081087)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
posterior parietal cortex, intraparietal sulcus, saccades, rhesus monkeys, single-unit recording, visual working memory
MeSH terms
Animals, Electrophysiology, Macaca mulatta, Male, Memory, Motor Activity, Motor Skills, Neurons, Parietal Lobe, Photic Stimulation, Rats, Inbred Strains, Saccades, Rats

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