Bilateral Activity and Callosal Connections in the Somatosensory Cortex  

Oleh:

Iwamura, Yoshiaki ; Taoka, Miki ; Iriki, Atsushi

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The Neuroscientist vol. 7 no. 5 (Okt. 2001), page 419–429.
Topik: Postcentral gyrus; Bilateral receptive field neurons; Ipsilateral receptive field neurons; Callosal connections; Midline fusion theory; Intermanual transfer of tactile information; Bimanual coordination
Fulltext: 419TN75.pdf (3.82MB)

Isi artikel

Earlier studies recording single neuronal activity in the postcentral somatosensory cortex of monkeys converged in suggesting that the bilateral receptive fields were related exclusively to the body midline including the trunk, perioral face, and oral cavity. These neurons were recorded mostly in the rostral part of the gyrus, areas 3b and 1. However, the authors recently found a substantial number of neurons with bilateral receptive fields on extremities, hand/digits, shoulders/arms, or legs/feet in the caudalmost part (areas 2 and 5) of the postcentral gyrus. The authors review these results and discuss functional implications of the bilateral representation in the postcentral somatosensory cortex.

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