The Journal of auditory research最新文献_第2页

Auditory backward recognition masking with well-practiced listeners. 听觉后向识别掩蔽与熟练的听众。

The Journal of auditory research Pub Date : 1986-10-01

H J Kallman, S C Brown

{"title":"Auditory backward recognition masking with well-practiced listeners.","authors":"H J Kallman, S C Brown","doi":"","DOIUrl":"","url":null,"abstract":"Five adult listeners who had extensive previous practice on a pitch discrimination task participated in an auditory backward recognition masking (ABRM) experiment. S identified the relative pitch \"higher\"-\"lower\" of a test tone. A standard tone of 20 msec duration at 800 c/s was followed after 500 msec by a similar 20-msec test tone at 800 +/- delta f. delta f varied from 3.3-11.4 c/s across Ss, adjusted for each S to yield approximately 75%-correct performance. The test tone was followed, after a silent interval of 20-250 msec, by a 100-msec mask, either a tone of 800 c/s or white noise. All stimuli were approximately equal to 77 dbA. All Ss exhibited substantial ABRM when the backward mask was a tone but substantially less when it was white noise. Evidently it is not necessary to use relatively naive listeners to demonstrate ABRM. The performance of most Ss was reduced by the tone masker (i.e., ABRM was in evidence) to chance or nearly chance levels (i.e., little or no ABRM) until the ISI exceeded 80 msec, and for 3 of the Ss ABRM with the tone masker was still evident after 250 msec. It was concluded that a backward mask interferes with test-tone information held in a multichannel preperceptual store and that such interference depends, in part, on the degree to which the properties of the test tone and mask overlap.","PeriodicalId":76646,"journal":{"name":"The Journal of auditory research","volume":"26 4","pages":"239-46"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14561394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevention of pre- and perinatal acquired hearing defects, Part I: Study of causes. 产前和围产期获得性听力缺陷的预防，第一部分:原因研究。

The Journal of auditory research Pub Date : 1986-10-01

T A Robillard, M C Gersdorff

引用次数: 0

Monaural auditory adaptation of reaction times at .5, 1, and 3 kc/s. 反应时间在0.5、1和3 kc/s时的单耳听觉适应。

The Journal of auditory research Pub Date : 1986-10-01

J M Davis, E M Weiler, D E Sandman

{"title":"Monaural auditory adaptation of reaction times at .5, 1, and 3 kc/s.","authors":"J M Davis, E M Weiler, D E Sandman","doi":"","DOIUrl":"","url":null,"abstract":"All procedures to measure auditory adaptation depend at least indirectly upon some subjective judgment of loudness, with the exception of the reaction-time (RT) study of Davis and Weiler (Brit. J. Audiol., 1976, 10, 102-106). We used a variant of the Davis-Weiler RT method to measure monaural adaptation at the end of tones of 7 min duration at .5, 1, and 3 kc/s at 60 db SPL, in 62 normal-hearing young adults. Adaptation was expressed as an increase in RT in msec post- vs pre-adaptation in response to a 1-sec probe tone at 10 kc/s at 70 db SPL presented simultaneously with the adapting tone, either (1) in the middle of a 2-sec burst of the adaptation tone prior to the beginning of the 7-min adaptation session (pre-adaptation measure), or (2) during the last seconds (S alerted) of the continuing adaptation tone (post-adaptation measure). Significant pre-post RT differences, collapsed over pre-post measures and over ears, were found at all 3 frequencies (p less than .0001), indicating that the Monaural Heterophonic RT (MHRT) procedure can indeed be used as an objective measure of auditory adaptation. The mean RTs across pre- and post-adaptation measures were 221.9, 217.6, and 228.0 msec in the usual frequency order, significantly different (p less than .0001). Adaptation (i.e., increased RT after 7 min of adaptation) at .5, 1, and 3 kc/s was 36.9, 28.5, and 21.6, respectively. This effect introduced a significant interaction between frequency and adaptation (p less than .001). To transfer from auditory adaptation in reduced RT in msec by the MHRT method to adaptation in reduced phons in db, it will be necessary to construct, perhaps for every S, a table of RTs for a sufficient selection of levels at the relevant frequencies.","PeriodicalId":76646,"journal":{"name":"The Journal of auditory research","volume":"26 4","pages":"261-6"},"PeriodicalIF":0.0,"publicationDate":"1986-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14561261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of the menstrual cycle on the human acoustic reflex threshold. 月经周期对人体声反射阈值的影响。