Mixed Body/Hand Reference Frame for Reaching in 3D Space in Macaque Parietal Area PEc
نویسندگان
چکیده
منابع مشابه
Mixed Body/Hand Reference Frame for Reaching in 3D Space in Macaque Parietal Area PEc.
The neural correlates of coordinate transformations from vision to action are expressed in the activity of posterior parietal cortex (PPC). It has been demonstrated that among the medial-most areas of the PPC, reaching targets are represented mainly in hand-centered coordinates in area PE, and in eye-centered, body-centered, and mixed body/hand-centered coordinates in area V6A. Here, we assesse...
متن کاملSomatosensory cells in area PEc of macaque posterior parietal cortex.
PEc is an area defined on cytoarchitectural grounds, located in the posterior part of the superior parietal lobule of macaque brain (Pandya and Seltzer, 1982). The aim of this work was to assess whether passive somatosensory stimulation elicited responses in PEc neurons. Extracellular recordings were performed in three awake Macaca fascicularis. Passive somatosensory stimulation was performed i...
متن کاملEarly coding of visuomanual coordination during reaching in parietal area PEc.
The parietal mechanisms of eye-hand coordination during reaching were studied by recording neural activity in area PEc while monkeys performed different tasks, aimed at assessing the influence of retinal, hand-, and eye-related signals on neural activity. The tasks used consisted of 1) reaching to foveated and 2) to extra-foveal targets, with constant eye position; and 3) saccadic eye movement ...
متن کاملVisual, somatosensory, and bimodal activities in the macaque parietal area PEc.
Caudal area PE (PEc) of the macaque posterior parietal cortex has been shown to be a crucial node in visuomotor coordination during reaching. The present study was aimed at studying visual and somatosensory organization of this cortical area. Visual stimulations activated 53% of PEc neurons. The overwhelming majority (89%) of these visual cells were best activated by a dark stimulus on a lighte...
متن کاملTarget selection for reaching and saccades share a similar behavioral reference frame in the macaque.
The selection of one of two visual stimuli as a target for a motor action may depend on external as well as internal variables. We examined whether the preference to select a leftward or rightward target depends on the action that is performed (eye or arm movement) and to what extent the choice is influenced by the target location. Two targets were presented at the same distance to the left and...
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ژورنال
عنوان ژورنال: Cerebral Cortex
سال: 2016
ISSN: 1047-3211,1460-2199
DOI: 10.1093/cercor/bhw039