title: Interaural interaction in the human auditory cortex.
abstract: We studied the effect of binaural, contralateral and ipsilateral stimulation on middle- and long-latency auditory-evoked magnetic fields using trains of 40-Hz clicks. The stimuli evoked both a transient response (N100m) and a 40-Hz response, which presumably reflects coalescence of middle-latency responses. Binaural stimuli elicited significantly larger 40-Hz responses and sustained fields than contralateral stimuli. N100m amplitudes did not differ between binaural and contralateral stimulation; the dipole moments were even smaller to binaural than contralateral stimuli. Responses to the ipsilateral stimuli were always the smallest.
authors.affiliation: Low Temperature Laboratory, Helsinki University of Technology, Espoo, Finland.
authors.forename: J
authors.initials: J
authors.lastname: Tiihonen
authors.forename: R
authors.initials: R
authors.lastname: Hari
authors.forename: E
authors.initials: E
authors.lastname: Kaukoranta
authors.forename: M
authors.initials: M
authors.lastname: Kajola
mesh_terms: D000161:Acoustic Stimulation; D000328:Adult; D001303:Auditory Cortex / Q000502:physiology*; D005072:Evoked Potentials, Auditory; D005260:Female; D006801:Humans; D015225:Magnetoencephalography; D008297:Male; D013017:Sound Localization