The Effects of Different Selective Attentions on Amplitudes of Distortion Product Otoacoustic Emissions
10.3969/j.issn.1006-7299.2015.04.004
- VernacularTitle:不同选择注意任务形式对畸变产物耳声发射幅值的影响
- Author:
Jianhua PENG
;
Jun CHEN
- Publication Type:Journal Article
- Keywords:
Selective attention;
Visual;
Auditory;
Distortion product otoacoustic emission
- From:
Journal of Audiology and Speech Pathology
2015;(4):348-350
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of different selective attention on the amplitudes of distortion product otoacoustic emission (DPOAE) .Methods DPOAE measurements were performed in 30 young adults (60 ears) in no task (baseline) ,visual selective attention and auditory selective attention ,respectively .The suppression of DPOAE amplitudes were observed in different selective attentions .The visual selective attention was to counter the number of letter Q presented on computer screen .The auditory selective attention was to counter the number of 2 .0 kHz toneburst in the insert earphone .Results Visual and auditory selective attention both decreased the DPOAE amplitudes in mid - low frequencies (0 .75 ~ 2 .0 kHz) .The suppression effects of visual selective attention were significant stronger than that of auditory attention in 0 .75 ~ 1 .0 kHz .The suppression amplitudes were 8 .54 ± 4 .76 and 5 .27 ± 2 .32 dB at 0 .75 kHz ,respectively .They were 7 .66 ± 5 .22 and 3 .22 ± 2 .15 dB at 1 .0 kHz ,re‐spectively .There were significant differences between the two selective attentions suppression (P< 0 .05) .Conclu‐sion Visual and auditory selective attention can both decrease the DPOAE amplitudes .The suppression effects of visual selective attention were significant stronger than that of auditory attention .
