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PROPERTIES OF ACOUSTIC REFLEX ADAPTATION TONOISE PURE TONES AND ONE‐THIRD OCTAVE BANDS OF NOISE

PROPERTIES OF ACOUSTIC REFLEX ADAPTATION TONOISE PURE TONES AND ONE‐THIRD OCTAVE BANDS OF... Acoustic reflex thresholds were obtained by a computerized threshold search procedure for two pure tones (500 and 2000 Hz) and two one-third octave bands of noise (436–553 an 1752–2253 Hz). The stimuli were presented at 5- and 1OdB sensation level (re: reflex threshold) with an interstimulus interval of at least 80 sec. Acoustic reflex adaptation was measured at predetermined stimulus durations of 15, 30, 45, and 6'0 sec. For the pure tone stimuli, reflex adaptation was found to be frequency dependent, with the 2000-Hz tone producing significantly greater adaptation than the 500-Hz pure tone. The main effects of sensation level and duration were not statistically significant for the pure tone stimuli. Results for the noise stimuli revealed no significant differences in reflex adaptation for the effects of frequency, sensation level, and duration. The overall intersubject variability of acoustic reflex adaptation was greater for the noise stimuli. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of the American Audiology Society Wolters Kluwer Health

PROPERTIES OF ACOUSTIC REFLEX ADAPTATION TONOISE PURE TONES AND ONE‐THIRD OCTAVE BANDS OF NOISE

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Copyright
Copyright 1977 by The Williams & Wilkins Co.
ISSN
0360-9294

Abstract

Acoustic reflex thresholds were obtained by a computerized threshold search procedure for two pure tones (500 and 2000 Hz) and two one-third octave bands of noise (436–553 an 1752–2253 Hz). The stimuli were presented at 5- and 1OdB sensation level (re: reflex threshold) with an interstimulus interval of at least 80 sec. Acoustic reflex adaptation was measured at predetermined stimulus durations of 15, 30, 45, and 6'0 sec. For the pure tone stimuli, reflex adaptation was found to be frequency dependent, with the 2000-Hz tone producing significantly greater adaptation than the 500-Hz pure tone. The main effects of sensation level and duration were not statistically significant for the pure tone stimuli. Results for the noise stimuli revealed no significant differences in reflex adaptation for the effects of frequency, sensation level, and duration. The overall intersubject variability of acoustic reflex adaptation was greater for the noise stimuli.

Journal

Journal of the American Audiology Society – Wolters Kluwer Health

Published: Nov 1, 1977

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