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Cited by 319Visual perception and processing mechanismsMotor Control and AdaptationSpatial Neglect and Hemispheric Dysfunction

Connections of the medial posterior parietal cortex (area 7m) in the monkey

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Leichnetz, George R.·2001·The Anatomical Record
DOI 10.1002/ar.1082
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Abstract

The afferent and efferent cortical and subcortical connections of the medial posterior parietal cortex (area 7m) were studied in cebus (Cebus apella) and macaque (Macaca fascicularis) monkeys using the retrograde and anterograde capabilities of the horseradish peroxidase (HRP) technique. The principal intraparietal corticocortical connections of area 7m in both cebus and macaque cases were with the ipsilateral medial bank of the intraparietal sulcus (MIP) and adjacent superior parietal lobule (area 5), inferior parietal lobule (area 7a), lateral bank of the IPS (area 7ip), caudal parietal operculum (PGop), dorsal bank of the caudal superior temporal sulcus (visual area MST), and medial prestriate cortex (including visual area PO and caudalmedial lobule). Its principal frontal corticocortical connections were with the prefrontal cortex in the shoulder above the principal sulcus and the cortex in the shoulder above the superior ramus of the arcuate sulcus (SAS), the area purported to contain the smooth eye movement‐related frontal eye field (FEFsem) in the cebus monkey by other investigators. There were moderate connections with the cortex in the rostral bank of the arcuate sulcus (purported to contain the saccade‐related frontal eye field; FEFsac), supplementary eye field (SEF), and rostral dorsal premotor area (PMDr). Area 7m also had major connections with the cingulate cortex (area 23), particularly the ventral bank of the cingulate sulcus. The principal subcortical connections of area 7m were with the dorsal portion of the ventrolateral thalamic (VLc) nucleus, lateral posterior thalamic nucleus, lateral pulvinar, caudal mediodorsal thalamic nucleus and medial pulvinar, central lateral, central superior lateral, and central inferior intralaminar thalamic nuclei, dorsolateral caudate nucleus and putamen, middle region of the claustrum, nucleus of the diagonal band, zona incerta, pregeniculate nucleus, anterior and posterior pretectal nuclei, intermediate layer of the superior colliculus, nucleus of Darkschewitsch and dorsomedial parvicellular red nucleus (macaque cases only), dorsal, dorsolateral and lateral basilar pontine nuclei, nucleus reticularis tegmenti pontis, locus ceruleus, and superior central nucleus. The findings are discussed in terms of the possibility that area 7m contains a “medial parietal eye field” and belongs to a neural network of oculomotor‐related structures that plays a role in the control of eye movement. Anat Rec 263:215–236, 2001. © 2001 Wiley‐Liss, Inc.

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  1. [24]24. Mountcastle V, Plum F, editors. The nervous system, higher func- tions of the brain, vol. 5. Handbook of physiology, Washington, DC: American Physiological Society. p 373-417.
  2. [45]45. May PJ, Hall WC, Porter JD, Sakai ST. 1993. The comparative anat- omy of nigral and cerebellar control over tectally initiated orienting movements. In: Mano N, Hamada I, DeLong MR, editors. Role of the cerebellum and basal ganglia in voluntary movement. Amsterdam: Elsevier. p 221-231.

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Authors
Leichnetz, G. R.
Affiliations
Virginia Commonwealth University (US)
Corresponding author
Leichnetz, George R.
Venue
The Anatomical Record
Publisher
Wiley
Published
2001-04-27
Volume
263
Issue
2
Pages
215-236
ISSN
  • 0003-276X (ISSN-L)
  • 1097-0185
DOI
10.1002/ar.1082
OpenAlex
W1985804114
Cited by
318
References
76
Citations by year
2026: 2 · 2025: 5 · 2024: 7 · 2023: 11 · 2022: 16 · 2021: 9 · 2020: 19 · 2019: 17 · 2018: 10 · 2017: 14 · 2016: 10 · 2015: 19 · 2014: 19 · 2013: 16 · 2012: 16
FWCI
1.40
Type
journal article
Language
en
Open access
Licence
onlinelibrary.wiley.com/termsAndConditions#vor (vor)
Locations
  • The Anatomical Record (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Motor Control and Adaptation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Spatial Neglect and Hemispheric Dysfunction
Keywords
corticocortical connections, subcortical connections, intraparietal sulcus, superior parietal lobule, inferior parietal lobule, frontal eye field, supplementary eye field, cingulate cortex, thalamus, superior colliculus, basal ganglia, claustrum, pretectal nuclei, pontine nuclei, Cebus apella, Macaca fascicularis
MeSH terms
Animals, Cebus, Eye Movements, Frontal Lobe, Horseradish Peroxidase, Macaca fascicularis, Neural Pathways, Parietal Lobe, Species Specificity

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