Magnetic cortical responses evoked by visual linear forward acceleration.
Cortical site processing the information of whole body linear acceleration has not yet been identified. In this study, neuromagnetic responses to visually induced linear forward acceleration were recorded in six healthy-right-handed adult subjects using a 122-channel whole cortex neuromagnetometer. Significant activation was estimated in the cortex around the posterior insula, which belongs to the vestibular cortex. Hence, it is suggested that the vestibular cortex not only receives vestibular input from the peripheral vestibular apparatus, but also processes the vestibular sensation from multi-modal information.
Nishiike
Suetaka
S
Department of Otolaryngology, Suita Minicipal Hospital, Osaka, Japan. nishiike@concerto.plala.or.jp
Nakagawa
Seiji
S
Nakagawa
Aya
A
Uno
Atsuhiko
A
Tonoike
Mitsuo
M
Takeda
Noriaki
N
Kubo
Takeshi
T
D000054:Acceleration; D000328:Adult; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D005074:Evoked Potentials, Visual / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D007088:Illusions / Q000502:physiology*; D015225:Magnetoencephalography; D008297:Male; D009039:Motion Perception / Q000502:physiology*; D010775:Photic Stimulation; D004856:Postural Balance / Q000502:physiology*; D011930:Reaction Time / Q000502:physiology; D014722:Vestibule, Labyrinth / Q000502:physiology*