Bereitschaftspotentials recorded from the lateral part of the superior frontal gyrus in humans.
To demonstrate the Bereitschaftspotentials (BPs) over the high lateral convexity in the superior frontal gyrus, movement-related cortical potentials with respect to the middle finger extension were recorded in seven patients with refractory epilepsy who underwent subdural implantation of platinum electrode grids and/or strips covering the high lateral frontal convexity. In two out of the seven patients, BPs were recorded from the electrodes placed on the superior frontal gyrus in the vicinity of the border between the medial and lateral frontal lobes, which were distinct from those recorded from the primary sensorimotor cortex. The results suggest the possible contribution of either the lateral dorsal non-primary motor area or the SMA to the generation of the BPs.
Ohara
Shinji
S
Human Brain Research Center, Kyoto University Graduate School of Medicine, Shogoin, Sakyo, 606-8507, Japan.
Ikeda
Akio
A
Matsuhashi
Masao
M
Satow
Takeshi
T
Kunieda
Takeharu
T
Mikuni
Nobuhiro
N
Baba
Koichi
K
Mihara
Tadahiro
T
Miyamoto
Susumu
S
Shibasaki
Hiroshi
H
D003265:Contingent Negative Variation; D004827:Epilepsy / Q000503:physiopathology; D005625:Frontal Lobe / Q000503:physiopathology*; D006801:Humans; D009068:Movement