Document Detail

The effects of a high-frequency suppressor on tuning curves and derived basilar-membrane response functions.
MedLine Citation:
PMID:  12880044     Owner:  NLM     Status:  MEDLINE    
Forward-masked psychophysical tuning curves were obtained using a fixed, low-level signal at a frequency of 4 kHz, and masker frequencies of 2.0, 2.5, 3.0, 3.5, 3.75, 4.0, 4.25, 4.5, 4.75, 5.0, and 5.5 kHz, at masker-signal gaps of 20, 30, 40, 60, 80, and 100 ms. An adaptive two-interval, two alternative forced-choice (21-2AFC) procedure was used to obtain the masker level at threshold. This procedure was repeated with the addition of a 4.75-kHz suppressor at 50 or 60 dB SPL, gated with the masker. Tuning curves were broader, and estimates of compression and gain from derived input/output functions were decreased in the presence of a suppressor as compared to the no-suppressor condition. The results are consistent with physiological results, which show that suppression leads to a broadening of tuning curves and a partial linearization of the midlevel portion of the basilar-membrane input/output function.
Ifat Yasin; Christopher J Plack
Related Documents :
17260874 - Binaural hearing, atresia, and the masking dilemma.
6466204 - A comparison of variability among measurements of subjective tinnitus and objective sti...
8160414 - Stereo matching precedes dichoptic masking.
9035394 - A new way to account for binaural detection as a function of interaural noise correlation.
14600334 - Biomechanical evaluation of the motor function of the thumb.
8547814 - Extension-growth responses and expression of flavonoid biosynthesis genes in the arabid...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  114     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2003 Jul 
Date Detail:
Created Date:  2003-07-25     Completed Date:  2003-09-26     Revised Date:  2006-12-27    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  322-32     Citation Subset:  IM    
Department of Psychology, University of Essex, Wivenhoe Park, Colchester CO4 3SQ, England.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Acoustic Stimulation
Attention / physiology*
Auditory Threshold / physiology
Basilar Membrane / physiology*
Linear Models
Loudness Perception / physiology*
Perceptual Masking / physiology*
Pitch Discrimination / physiology*
Sound Spectrography

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Representation of the voice onset time (VOT) speech parameter in population responses within primary...
Next Document:  An account of monaural phase sensitivity.