Zur Stabilität der Neurotopographie von Vokalen: eine MEG-Studie


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OBLESER, Jonas, 2001. Zur Stabilität der Neurotopographie von Vokalen: eine MEG-Studie

@mastersthesis{Obleser2001Stabi-11322, title={Zur Stabilität der Neurotopographie von Vokalen: eine MEG-Studie}, year={2001}, author={Obleser, Jonas} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/11322"> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-25T09:27:37Z</dcterms:available> <dc:format>application/pdf</dc:format> <dcterms:alternative>dynamics of vowel neurotopography as revealed by magnetoencephalography</dcterms:alternative> <dc:creator>Obleser, Jonas</dc:creator> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/11322"/> <dc:rights>deposit-license</dc:rights> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-25T09:27:37Z</dc:date> <dc:language>deu</dc:language> <dcterms:rights rdf:resource="http://nbn-resolving.org/urn:nbn:de:bsz:352-20140905103416863-3868037-7"/> <dcterms:issued>2001</dcterms:issued> <dc:contributor>Obleser, Jonas</dc:contributor> <dcterms:title>Zur Stabilität der Neurotopographie von Vokalen: eine MEG-Studie</dcterms:title> <dcterms:abstract xml:lang="eng">The extent to which spectral similarities as determined by a F1-F2 vowel space are represented in the neural correlates of vowels has been under examination in animal and human experimental research but not resolved yet. In the present study the N100m component of the auditory evoked field (AEF) was recorded with a 148-channel whole head magnetometer in 14 healthy control subjects in response to the German synthetic vowels [a], [e] and [i]. The study aimed at revealing functional principles of vowel representation in the supratemporal gyrus. The main hypothesis predicted that the mapping of [a], [e] and [i] onto the cortical surface reflects spectral dissimilarities according to the F1-F2 vowel space. Of additional interest was the reliability of the patterns found determined by repeatedly measuring all subjects. The N100m in response to [i] peaked latest while responses to [a] showed the weakest amplitude. Equivalent current dipole sources of [a] also showed the weakest dipole moment und were located more superior than the [e]-sources. This evidence supports the notion of distinguishable cortical responses to different vowel stimuli. Yet no stable pattern of dipole locations mainly in posterior-anterior direction could be obtained. Nevertheless euclidean distance ratio between dipole sources reflecting [a], [e] and [i] across both hemispheres and both sessions resembled physical F1-F2 -distances: [a]-[i] was larger compared to [e]-[i], p</dcterms:abstract> </rdf:Description> </rdf:RDF>

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