Auditory sensitivity of the monkey.
Auditory thresholds for pure tones were determined in monkeys (three Macaca irus and one Macaca nemestrina) by the psychophysical method of constant stimuli after the animals had been trained by operant conditioning procedures. Their audible frequency range was found to extend from below 60 hertz to 40 or 45 kilohertz.
D000818:Animals; D001299:Audiometry; D003216:Conditioning, Operant; D003213:Conditioning, Psychological; D006309:Hearing; D008297:Male; D012201:Reward