Behavioral Limits of Auditory Temporal Resolution in the Rat: Amplitude Modulation and Duration Discrimination

Thresholds for detecting the presence of amplitude modulation in a noise carrier were determined for rats using conditioned avoidance procedures. There was a progressive increase in threshold with modulation rates between 5 Hz and 2 kHz. Further tests were conducted to determine difference threshold...

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Bibliographic Details
Published in:Journal of comparative psychology (1983) 2006-05, Vol.120 (2), p.98-105
Main Authors: Kelly, Jack B, Cooke, James E, Gilbride, Patrick C, Mitchell, Craig, Zhang, Huiming
Format: Article
Language:English
Subjects:
Animal
Animal behavior
Animal ethology
Animals
Auditory Discrimination
Auditory Perception
Auditory Threshold
Auditory Thresholds
Avoidance
Behavior, Animal - physiology
Biological and medical sciences
Discrimination (Psychology)
Exclusive agency selling
Fundamental and applied biological sciences. Psychology
Male
Noise
Psychology. Psychoanalysis. Psychiatry
Rats
Rats, Wistar
Rodents
Stimulus Parameters
Time Perception
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Summary:Thresholds for detecting the presence of amplitude modulation in a noise carrier were determined for rats using conditioned avoidance procedures. There was a progressive increase in threshold with modulation rates between 5 Hz and 2 kHz. Further tests were conducted to determine difference thresholds for detecting an increase in modulation rate for standard rates of 10, 50, and 100 Hz. The size of the difference threshold increased progressively as the standard rate increased. In addition, thresholds for detecting an increase in the duration of a noise burst were determined for various standard durations. The difference thresholds were constant for values between 10 and 50 ms but increased progressively, with standard durations between 0.1 and 1.0 s.
ISSN:0735-7036
1939-2087
DOI:10.1037/0735-7036.120.2.98