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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 – 8 of 8 1 Lexico-semantic and acoustic-phonetic processes in the perception of noise-vocoded speech: implications for cochlear implantation. McGettigan, C; Rosen, S; Scott, SK In: Front Syst Neurosci , 8 , Article 18. (2014) (2014) Abstract: Noise-vocoding is a transformation which, when applied to speech, severely reduces spectral resolution and eliminates periodicity, yielding a stimulus that sounds "like a harsh whisper" (Scott et al., 2000, p. 2401). This process simulates a cochlear implant, where the activity of many thousand hair cells in the inner ear is replaced by direct stimulation of the auditory nerve by a small number of tonotopically-arranged electrodes. Although a cochlear implant offers a powerful means of restoring some degree of hearing to profoundly deaf individuals, the outcomes for spoken communication are highly variable (Moore and Shannon, 2009). Some variability may arise from differences in peripheral representation (e.g., the degree of residual nerve survival) but some may reflect differences in higher-order linguistic processing. In order to explore this possibility, we used noise-vocoding to explore speech recognition and perceptual learning in normal-hearing listeners tested across several levels of the linguistic hierarchy: segments (consonants and vowels), single words, and sentences. Listeners improved significantly on all tasks across two test sessions. In the first session, individual differences analyses revealed two independently varying sources of variability: one lexico-semantic in nature and implicating the recognition of words and sentences, and the other an acoustic-phonetic factor associated with words and segments. However, consequent to learning, by the second session there was a more uniform covariance pattern concerning all stimulus types. A further analysis of phonetic feature recognition allowed greater insight into learning-related changes in perception and showed that, surprisingly, participants did not make full use of cues that were preserved in the stimuli (e.g., vowel duration). We discuss these findings in relation cochlear implantation, and suggest auditory training strategies to maximize speech recognition performance in the absence of typical cues. Keyword: cochlear implants; individual differences; speech perception URL: http://discovery.ucl.ac.uk/1425057/1/fnsys-08-00018.pdf http://discovery.ucl.ac.uk/1425057/ BASE Hide details 2 The role of auditory and cognitive factors in understanding speech in noise by normal-hearing older listeners. Schoof, T; Rosen, S In: Front Aging Neurosci , 6 , Article 307. (2014) (2014) BASE Show details 3 The Pathways for Intelligible Speech: Multivariate and Univariate Perspectives Evans, S.; Kyong, J. S.; Rosen, S.... In: ISSN: 1047-3211 ; Cerebral Cortex, Vol. 24, No 9 (2014) pp. 2350-61 (2014) BASE Show details 4 Speech perception in rats: Use of duration and rise time cues in labeling of affricate/fricative sounds Reed, P; Howell, P; Sackin, S... In: J EXP ANAL BEHAV , 80 (2) pp. 205-215. (2003) (2003) BASE Show details 5 Identification of a pathway for intelligible speech in the left temporal lobe Scott, SK; Blank, CC; Rosen, S... In: BRAIN , 123 2400 - 2406. (2000) (2000) BASE Show details 6 The Perception of Speech in Fluctuating Noise Howardjones, PA; Rosen, S In: Acustica , 78 (5) pp. 258-272. (1993) (1993) BASE Show details 7 Speech-Perception with Promontory Stimulation Fourcin, AJ; Douek, EE; Moore, BCJ... In: Annals Of the New York Academy Of Sciences , 405 (JUN) pp. 280-294. (1983) (1983) BASE Show details 8 Perception of transient nonspeech stimuli is normal in specific language impairment: evidence from glide discrimination Bishop, Dorothy; Adams, C.V.; Nation, K. BASE Show details

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