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All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year AND OR AND NOT All fields Title Creator / Publisher Keyword Year Sort by creator [A → Z]' creator [Z → A]' publishing year ↑ (asc)' publishing year ↓ (desc)' title [A → Z]' title [Z → A]' Simple Search Hits 1 – 1 of 1 1 Resistance to learning binaurally mismatched frequency-to-place maps: Implications for bilateral stimulation with cochlear implants Siciliano, CM; Faulkner, A; Rosen, S; Mair, K In: Journal of the Acoustical Society of America , 127 (3) 1645 - 1660. (2010) (2010) Abstract: Simulations of monaural cochlear implants in normal hearing listeners have shown that the deleterious effects of upward spectral shifting on speech perception can be overcome with training. This study simulates bilateral stimulation with a unilateral spectral shift to investigate whether listeners can adapt to upward-shifted speech information presented together with contralateral unshifted information. A six-channel, dichotic, interleaved sine-carrier vocoder simulated a binaurally mismatched frequency-to-place map. Odd channels were presented to one ear with an upward frequency shift equivalent to 6 mm on the basilar membrane, while even channels were presented to the contralateral ear unshifted. In Experiment 1, listeners were trained for 5.3 h with either the binaurally mismatched processor or with just the shifted monaural bands. In Experiment 2, the duration of training was 10 h, and the trained condition alternated between those of Experiment 1. While listeners showed learning in both experiments, intelligibility with the binaurally mismatched processor never exceeded, intelligibility with just the three unshifted bands, suggesting that listeners did not benefit from combining the mismatched maps, even though there was clear scope to do so. Frequency-place map alignment may thus be of importance when optimizing bilateral devices of the type studied here. (C) 2010 Acoustical Society of America. [DOI:10.1121/1.3293002] Keyword: DICHOTIC SPEECH RECOGNITION; ELECTRODE ARRAYS; ENVELOPE CUES; HEARING; INSERTION DEPTH; INTELLIGIBILITY; NOISE-VOCODED SPEECH; NUMBER; PERCEPTUAL ADAPTATION; SPECTRALLY SHIFTED SPEECH URL: http://discovery.ucl.ac.uk/186852/ http://discovery.ucl.ac.uk/186852/1/186852_Sicliliano%2520Faulkner%2520Rosen%2520Mair%25202010.pdf BASE Hide details

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