| Frequency characteristics of contralateral sound suppression of 40-Hz auditory steady-state response. | |
| | |
MedLine Citation:
|
PMID: 21826563 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
|
Sound presented to the contralateral ear suppresses the amplitude of the 40-Hz auditory steady-state response (ASSR). The frequency characteristics of this suppression of the 40-Hz ASSR for amplitude modulated (AM) tones at 1,000 Hz (79-dB SPL) were examined in 12 healthy volunteers (10 males and 2 females, mean age 32.3 years) using contralateral AM tones (500, 1,000, 2,000, and 4,000 Hz) and 1/3 octave-band noise (500, 1,000, 2,000, and 4,000 Hz). The 40-Hz ASSR at 1,000 Hz was suppressed by a relatively wide frequency range of contralateral sound than expected from the known characteristics of psychophysical central masking by contralateral sound: the greatest suppression was obtained with 500- and 1,000-Hz sounds, but considerable suppression was also obtained with 2,000- and 4,000-Hz sounds. Substantial differences in the suppression pattern were not observed between two types of contra-suppressors; i.e., AM tones and 1/3 octave-band noise. Therefore, any sound presented to the contralateral ear, regardless of the frequency, can suppress the 40-Hz ASSR. Moreover, the different frequency characteristics of the contralateral sound effects between the psychophysical central masking and the 40-Hz ASSR would support the idea that the 40-Hz ASSR has an additive role in the processing of auditory signals to simple threshold judgment. Investigation of the type of psychophysical measurement using the AM signal showing similar suppression patterns by the presentation of contralateral sound would be helpful to reveal the functional relevance of ASSRs. |
| | |
Authors:
|
Hiromichi Kiyokawa; Tetsuaki Kawase; Hidetoshi Oshima; Atsuko Maki; Toshimitsu Kobayashi |
Related Documents
:
|
17735903 - Time-lapse motion picture technique applied to the study of geological processes. 10070553 - Measurement and modelling of perceived slant in surfaces represented by freely viewed l... 8022913 - Burrow plugging in the crab uca uruguayensis and its synchronization with photoperiod a... |
Publication Detail:
|
Type: JOURNAL ARTICLE Date: 2011-8-9 |
Journal Detail:
|
Title: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery Volume: - ISSN: 1434-4726 ISO Abbreviation: - Publication Date: 2011 Aug |
Date Detail:
|
Created Date: 2011-8-9 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9002937 Medline TA: Eur Arch Otorhinolaryngol Country: - |
Other Details:
|
Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
|
Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Purchasing Piety? Coresidence of Married Children With Their Older Parents in Japan.
Next Document: Flexible Memory Networks.