title: Bereitschaftspotentials recorded from the lateral part of the superior frontal gyrus in humans.
abstract: 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.
authors.affiliation: Human Brain Research Center, Kyoto University Graduate School of Medicine, Shogoin, Sakyo, 606-8507, Japan.
authors.forename: Shinji
authors.initials: S
authors.lastname: Ohara
authors.forename: Akio
authors.initials: A
authors.lastname: Ikeda
authors.forename: Masao
authors.initials: M
authors.lastname: Matsuhashi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Satow
authors.forename: Takeharu
authors.initials: T
authors.lastname: Kunieda
authors.forename: Nobuhiro
authors.initials: N
authors.lastname: Mikuni
authors.forename: Koichi
authors.initials: K
authors.lastname: Baba
authors.forename: Tadahiro
authors.initials: T
authors.lastname: Mihara
authors.forename: Susumu
authors.initials: S
authors.lastname: Miyamoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Shibasaki
mesh_terms: D003265:Contingent Negative Variation; D004827:Epilepsy / Q000503:physiopathology; D005625:Frontal Lobe / Q000503:physiopathology*; D006801:Humans; D009068:Movement