000			02069nam a22001697a 4500
003			OSt
005			20151125150203.0
008			151106b xxu||||| |||| 00| 0 eng d
040			_cNational Acoustic Laboratories
245			_aEvaluation of Speech-Evoked Envelope Following Responses as an Objective Aided Outcome Measure: Effect of Stimulus Level, Bandwidth, and Amplification in Adults With Hearing Loss
520	3		_aObjectives: The present study evaluated a novel test paradigm based on speech-evoked envelope following responses (EFRs) as an objective aided outcome measure for individuals fitted with hearing aids. Although intended for use in infants with hearing loss, this study evaluated the paradigm in adults with hearing loss, as a precursor to further evaluation in infants. The test stimulus was a naturally male-spoken token / susa∫i/, modified to enable recording of eight individual EFRs, two from each vowel for different formants and one from each fricative. In experiment I, sensitivity of the paradigm to changes in audibility due to varying stimulus level and use of hearing aids was tested. In experiment II, sensitivity of the paradigm to changes in aided audible bandwidth was evaluated. As well, experiment II aimed to test convergent validity of the EFR paradigm by comparing the effect of bandwidth on EFRs and behavioral outcome measures of hearing aid fitting.
650			_aAided outcome measure, Amplitude modulation, Envelope following responses, Fourier analyzer, Fricatives, Hearing aids, Hearing loss, Ling 6 sounds, Low-pass filtering, Objective outcome measure, Sound quality rating, Speech discrimination, Speech stimulus, Stimulus bandwidth, Stimulus level, Vowel.
700			_aVijayalakshmi Easwar,
773	0		_g VOL. 36, NO. 6, 635–652 (2015) _tEAR & HEARING,
856			_uhttp://dspace.nal.gov.au/xmlui/bitstream/handle/123456789/282/Evalutaion%20of%20speech%20evoked%20envelope%20following%20responses%20as%20an%20objective%20aided%20outcome%20measure.pdf?sequence=1&isAllowed=y
942			_2udc _cARTICLE
999			_c2515 _d2515