Journal article
Suppression effects for complex stimuli
The Journal of the Acoustical Society of America, Vol.71(2), pp.410-420
02/1982
DOI: 10.1121/1.387443
PMID: 7069056
Abstract
A pulsation-threshold paradigm was used to evaluate suppression effects within complex stimuli. Stimuli were chosen to represent a continuum of spectral complexity ranging from sinusoids to complexes with one and two suppressors. Results indicate that suppression effects exist between the response to components of complex stimuli. For frequencies above a single suppressor, the suppression region is broad whereas below a suppressor, the region is relatively narrow. With two suppressors, little additivity of suppression is seen. When they are spaced closely, the response to the higher-frequency suppressor is reduced, presumably due to the low-frequency suppressor; this tends to diminish spectral contrasts despite considerable suppression at frequencies between the two suppressors. Enhancement of contrasts is greatest when suppressors are widely spaced and when both are presented at moderate levels (≤ 60 dB SPL). These data suggest that suppression may not play a simple role of “peak enhancement” in the peripheral coding of steady-state vowels. © 1982, Acoustical Society of America. All rights reserved.
Details
- Title: Subtitle
- Suppression effects for complex stimuli
- Creators
- Patricia G. Stelmachowicz - University of IowaArnold M. Small - University of IowaPaul J. Abbas - University of Iowa
- Resource Type
- Journal article
- Publication Details
- The Journal of the Acoustical Society of America, Vol.71(2), pp.410-420
- DOI
- 10.1121/1.387443
- PMID
- 7069056
- ISSN
- 0001-4966
- eISSN
- 1520-8524
- Language
- English
- Date published
- 02/1982
- Academic Unit
- Communication Sciences and Disorders; Otolaryngology
- Record Identifier
- 9984383300102771
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