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Familiarity affects environmental sound processing outside the focus of attention : an event-related potential study

Familiarity affects environmental sound processing outside the focus of attention : an event-related potential study

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Prüfsumme: MD5:59380f8efa86efeaca3183bd271485a1

KIRMSE, Ursula, Thomas JACOBSEN, Erich SCHRÖGER, 2009. Familiarity affects environmental sound processing outside the focus of attention : an event-related potential study. In: Clinical neurophysiology. 120(5), pp. 887-896. ISSN 1388-2457. eISSN 1872-8952. Available under: doi: 10.1016/j.clinph.2009.02.159

@article{Kirmse2009-05Famil-41566, title={Familiarity affects environmental sound processing outside the focus of attention : an event-related potential study}, year={2009}, doi={10.1016/j.clinph.2009.02.159}, number={5}, volume={120}, issn={1388-2457}, journal={Clinical neurophysiology}, pages={887--896}, author={Kirmse, Ursula and Jacobsen, Thomas and Schröger, Erich} }

eng 2018-02-22T11:52:31Z Kirmse, Ursula Schröger, Erich Objective<br />This study investigated the influence of the familiarity of an environmental sound on sound processing outside the focus of attention.<br /><br />Methods<br />By comparing ERPs elicited by a familiar, animal sound and an acoustically matched, but unfamiliar, complex sound, three issues were addressed: (a) general differences in the processing of the familiar and the unfamiliar sound, (b) influences of sound familiarity on the processing of deviants unrelated to familiarity and (c) familiarity-specific processing depending on the sound context. Participants watched a silent, subtitled movie.<br /><br />Results<br />The familiar sound elicited a centro-parietal enhancement of the N1, a frontocentrally enhanced P2 and an additional P250. Auditory deviance processing elicited by deviants in sound location was not influenced by the familiarity of the sounds. However, after an involuntary switch of attention to the deviant, an N400-like deflection indicated enhanced semantic analysis of the familiar deviant. Familiarity-specific ERP effects as a consequence of the sound context occurred between 300 and 500 ms after stimulus onset.<br /><br />Conclusion<br />Whereas familiarity of an environmental sound elicited enhanced stimulus processing before 300 ms, influences of the sound context were observed subsequent to 300 ms.<br /><br />Significance<br />Familiarity of a complex environmental sound influences several stages of auditory processing outside the focus of attention. terms-of-use Schröger, Erich 2018-02-22T11:52:31Z Familiarity affects environmental sound processing outside the focus of attention : an event-related potential study Jacobsen, Thomas Kirmse, Ursula Jacobsen, Thomas 2009-05

Dateiabrufe seit 22.02.2018 (Informationen über die Zugriffsstatistik)

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