Brain, Vol. 114A, No. 1, 139-153, 1991
© 1991 Oxford University Press
LOCALIZATION OF THE PRIMARY AUDITORY AREA IN MAN
INSERM U 97 and Service de Neurochirurgie, Hôopital Ste Anne Paris, France
Correspondence to:
Correspondence to: Dr C. Liegeois-Chauvel, INSERM U 97, 2 ter rue d'Atesia, 75014 Paris, France
The localization of the primary auditory cortex in man was studied by direct recordings in 150 different sites in the superior transverse gyrus, especially in Heschl's gyms and the planum temporale. The distribution of the primary evoked responses (N13/P17/N26) was studied in 15 epileptic patients who were candidates for surgical treatment. Precise topography of recording sites was determined stereotactically. Our results provide evidence for considering only a restricted portion of Heschl's gyrus (its posteromedial part) as the primary auditory area.
Received September 29, 1989. Revised January 12, 1990. Accepted January 23, 1990.