KOPS - Das Institutionelle Repositorium der Universität Konstanz

On the matching of top-down knowledge with sensory input in the perception of ambiguous speech

On the matching of top-down knowledge with sensory input in the perception of ambiguous speech

Zitieren

Dateien zu dieser Ressource

Prüfsumme: MD5:88d046781f32bc133cf9722cec446168

EULITZ, Carsten, Ronny HANNEMANN, 2010. On the matching of top-down knowledge with sensory input in the perception of ambiguous speech. In: BMC Neuroscience. 11, 67

@article{Eulitz2010match-3720, title={On the matching of top-down knowledge with sensory input in the perception of ambiguous speech}, year={2010}, doi={10.1186/1471-2202-11-67}, volume={11}, journal={BMC Neuroscience}, author={Eulitz, Carsten and Hannemann, Ronny}, note={Article Number: 67} }

First publ. in: BMC Neuroscience 11 (2010), Art. 67 2011-03-24T10:06:16Z Background: How does the brain repair obliterated speech and cope with acoustically ambivalent situations? A widely discussed possibility is to use top-down information for solving the ambiguity problem. In the case of speech, this may lead to a match of bottom-up sensory input with lexical expectations resulting in resonant states which are reflected in the induced gamma-band activity (GBA).<br /><br />Methods: In the present EEG study, we compared the subject's pre-attentive GBA responses to obliterated speech segments presented after a series of correct words. The words were a minimal pair in German and differed with respect to the degree of specificity of segmental phonological information.<br /><br />Results: The induced GBA was larger when the expected lexical information was phonologically fully specified compared to the underspecified condition. Thus, the degree of specificity of phonological information in the mental lexicon correlates with the intensity of the matching process of bottom-up sensory input with lexical information.<br /><br />Conclusions: These results together with those of a behavioural control experiment support the notion of multi-level mechanisms involved in the repair of deficient speech. The delineated alignment of pre-existing knowledge with sensory input is in accordance with recent ideas about the role of internal forward models in speech perception. Hannemann, Ronny application/pdf 2010 2011-03-24T10:06:16Z Eulitz, Carsten On the matching of top-down knowledge with sensory input in the perception of ambiguous speech Hannemann, Ronny eng deposit-license Eulitz, Carsten

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

Eulitz_Hannemann_BMC10.pdf 118

Das Dokument erscheint in:

KOPS Suche


Stöbern

Mein Benutzerkonto