Steady-state evoked potentials to amplitude modulated tones in the monkey.
A frequency-specific, objective assessment of hearing thresholds is required for use in subjects unable to perform behavioural audiometry. One such method using steady-state evoked potentials (SSEPs) in response to amplitude-modulated tones was evaluated in an experimental animal, the macaque monkey. An amplitude-modulation frequency of 165 Hz was found to produce optimum response detection in the anaesthetised animal. Auditory thresholds determined by a computerised automatic response detection system accurately reflected behavioural thresholds previously described in this species.
Burton
M J
MJ
Human Communication Research Centre, University of Melbourne, Royal Victorian Eye & Ear Hospital, Australia.
Cohen
L T
LT
Rickards
F W
FW
McNally
K I
KI
Clark
G M
GM
D000818:Animals; D001309:Auditory Threshold; D005072:Evoked Potentials, Auditory; D008252:Macaca fascicularis