A sequential representation of the occiput, arm, forearm and hand across the rostrocaudal dimension of areas 1, 2 and 5 in macaque monkeys
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4.17 - Intrinsic Signal Imaging of Somatosensory Function in Nonhuman Primates
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second Edition4.14 - The Architecture of Somatosensory Cortex
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second Edition4.12 - The Somatosensory System of Primates
2020, The Senses: A Comprehensive Reference: Volume 1-7, Second EditionSomatosensory maps
2018, Handbook of Clinical NeurologyCitation Excerpt :The somatotopy of tactile maps in all four anterior parietal areas is known in detail, primarily from extracellular unit recordings in anesthetized monkeys. These studies mapped receptive fields using near-threshold indentation of the skin with hand-held probes, in both macaques (Nelson et al., 1980; Pons et al., 1985a, b, 1987b; Rothemund et al., 2002; Krubitzer et al., 2004) and New World monkeys (Merzenich et al., 1978; Kaas et al., 1979; Sur et al., 1980, 1982; Felleman et al., 1983; Carlson et al., 1986; Cusick et al., 1989). Three major features of somatotopic maps are evident (Figs 4.1B and 4.2A), consistent with Penfield and Woolsey's early recordings.
Spatiotemporal trajectories of reactivation of somatosensory cortex by direct and secondary pathways after dorsal column lesions in squirrel monkeys
2016, NeuroImageCitation Excerpt :Case SM-Ge (Fig. 7) had foci for the 3 digits in expected locations for area 3b, but foci for only digits 2 and 3 in area 3a, and digits 1 and 2 in area 1. Additional foci were detected caudomedially in area 2 or perhaps area 5, where more convergence of inputs from digits is expected (Cooke et al., 2014; Padberg et al., 2009; Padberg et al., 2010; Pons et al., 1985). The somatotopy and area boundaries defined by fMRI were consistent with the known areal and somatotopic organization, and inter-session co-registration of functional images can be as accurate as ~ 140 μm (Lecoeur et al., 2011b).
Load effect on background rhythms during motor execution: A magnetoencephalographic study
2016, Neuroscience ResearchCitation Excerpt :However, so far, no direct evidence has been provided regarding whether gyral and sulcal parts of the M1 pyramidal neurons have different roles regarding the load effect. In the primary sensory cortex (S1), which is deeply associated with movement, it has been proved that there is a difference in distribution: area 3b in the cerebral sulcus is highly responsive to cutaneous input, while area 3a in the depth of the cerebral sulcus and areas 1 and 2 in the cerebral gyrus are the main areas for receiving afferent impulses from the muscle and/or joint (Phillips et al., 1971; Heath et al., 1976; Cusick et al., 1985; Pons et al., 1985, 1992; Tremblay et al., 1996; Burton et al., 1997). Sensory receptor input is represented in S1 and even in M1.
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Present address: Section of Neuroanatomy, Yale University School of Medicine, New Haven, CT 06510, U.S.A.