Superior area 6 afferents from the superior parietal lobule in the macaque monkey

Matelli, Massimo; Govoni, Paolo; Galletti, Claudio; Kutz, Dieter F.; Luppino, Giuseppe

doi:10.1002/(sici)1096-9861(19981221)402:3<327::aid-cne4>3.3.co;2-q

Cited by 85 publications

(156 citation statements)

References 7 publications

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“…Wise et al (1997) suggested that a synthesis of somatosensory, retinal, and extraretinal information occurs in MIP. Although this study could not differentiate independent connections, Matelli et al (1998) have suggested that area PEc (MDP) in the dorsomedial shoulder of the SPL (dorsal to area 7m) is most probably a higher‐order somatosensory area.…”

Section: Discussionmentioning

confidence: 64%

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

2001

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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: 2001.

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Section: Discussionmentioning

confidence: 64%

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

2001

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“…Reports in other species of primate have indicated that posterior parietal connections of M1 focus on the rostral portions of this region (area 5), which are primarily related to processing of somatosensory inputs (e.g., Leichnetz,1986; Darian‐Smith et al,1993; Fang et al,2005). In contrast, tracer injections in the premotor areas often demonstrate additional connections with caudal regions of the parietal cortex, including high‐order stations of the visual “dorsal stream” (e.g., Matelli et al,1998; Marconi et al,2001; Tanné‐Gariépy et al,2002; Rozzi et al,2006). Thus, in order to help determine the rostral border of M1, we considered the pattern of projections between frontal fields and the posterior parietal cortex…”

Section: Resultsmentioning

confidence: 99%

Anatomical and physiological definition of the motor cortex of the marmoset monkey

Burman

Palmer

Gamberini

et al. 2007

J of Comparative Neurology

123

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We used a combination of anatomical and physiological techniques to define the primary motor cortex (M1) of the marmoset monkey and its relationship to adjacent cortical fields. Area M1, defined as a region containing a representation of the entire body and showing the highest excitability to intracortical microstimulation, is architecturally heterogeneous: it encompasses both the caudal part of the densely myelinated "gigantopyramidal" cortex (field 4) and a lateral region, corresponding to the face representation, which is less myelinated and has smaller layer 5 pyramidal cells (field 4c). Rostral to M1 is a field that is strongly reminiscent of field 4 in terms of cyto- and myeloarchitecture but that in the marmoset is poorly responsive to microstimulation. Anatomical tracing experiments revealed that this rostral field is interconnected with visual areas of the posterior parietal cortex, whereas M1 itself has no such connections. For these reasons, we considered this field to be best described as part of the dorsal premotor cortex and adopted the designation 6Dc. Histological criteria were used to define other fields adjacent to M1, including medial and ventral subdivisions of the premotor cortex (fields 6M and 6V) and the rostral somatosensory field (area 3a), as well as a rostral subdivision of the dorsal premotor area (field 6Dr). These results suggest a basic plan underlying the histological organization of the caudal frontal cortex in different simian species, which has been elaborated during the evolution of larger species of primate by creation of further morphological and functional subdivisions.

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“…With respect to parietal lobe connectivity, a number of investigators have shown that the medial preoccipital region is connected with the cortex of the intraparietal sulcus (areas LIP or POa, MIP, and VIP) and with areas 7m, 7a, and PEa (e.g., Seltzer and Pandya, 1980; Colby and Duhamel, 1991; Bullier et al, 1996; Shipp et al, 1998; Caminiti et al, 1999; Galletti et al, 2001). Finally, it has been shown that the medial preoccipital region is connected with the caudodorsal prefrontal and the dorsal premotor cortices (e.g., Barbas and Mesulam, 1981; Schall et al, 1995; Stanton et al, 1995; Tanné et al, 1995; Bullier et al, 1996; Matelli et al, 1998; Shipp et al, 1998; Caminiti et al, 1999; Petrides and Pandya, 2006).…”

Section: Discussionmentioning

confidence: 99%

Fiber pathways and cortical connections of preoccipital areas in rhesus monkeys

Yeterian

Pandya

2010

J of Comparative Neurology

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An understanding of visual function at the cerebral cortical level requires detailed knowledge of anatomical connectivity. Cortical association pathways and terminations of preoccipital visual areas were investigated in rhesus monkeys by using the autoradiographic tracing technique. Medial and adjacent dorsomedial preoccipital regions project via the occipitofrontal fascicle to the frontal lobe (dorsal area 6, and areas 8Ad, 8B, and 46); via the dorsal portion of the superior longitudinal fascicle (SLF) to dorsal area 6, area 9, and the supplementary motor area; and via the cingulate fascicle to area 24. In addition, medial and dorsomedial preoccipital areas send projections to parietal (areas PGm, PEa, PG-Opt, and POa) and superior temporal (areas MST and MT) regions. In contrast, connections from the dorsolateral, annectant, and ventral preoccipital regions are conveyed via the inferior longitudinal fascicle (ILF) to the parietal lobe (areas POa and IPd), superior temporal sulcus (areas MT, MST, FST, V4t, and IPa), inferotemporal region (areas TEO and TE1-TE3), and parahippocampal gyrus (areas TF, TH, and TL). The central-lateral preoccipital region projects via an ILF-SLF pathway to frontal area 8Av. The preoccipital areas also have caudal connections to occipital areas V1, V2, and V3. Finally, preoccipital regions are interconnected via different intrinsic pathways. These findings provide further insight into the nature of preoccipital fiber pathways and the connectional organization of the visual system.

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Superior area 6 afferents from the superior parietal lobule in the macaque monkey

Cited by 85 publications

References 7 publications

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

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

Anatomical and physiological definition of the motor cortex of the marmoset monkey

Fiber pathways and cortical connections of preoccipital areas in rhesus monkeys

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