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Titolo:
Sound localization in the human brain: neuromagnetic observations
Autore:
Palomaki, K; Alku, P; Makinen, V; May, P; Tiitinen, H;
Indirizzi:
Helsinki Univ Technol, Lab Acoust & Audio Signal Proc, FIN-02015 TKK, Finland Helsinki Univ Technol TKK Finland FIN-02015 Proc, FIN-02015 TKK, Finland Univ Helsinki, Cognit Brain Res Unit, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 it, FIN-00014 Helsinki, Finland Univ Helsinki, Dept Psychol, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ol, FIN-00014 Helsinki, Finland Univ Helsinki, Cent Hosp, Med Engn Ctr, Biomag Lab, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ab, FIN-00014 Helsinki, Finland
Titolo Testata:
NEUROREPORT
fascicolo: 7, volume: 11, anno: 2000,
pagine: 1535 - 1538
SICI:
0959-4965(20000515)11:7<1535:SLITHB>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN AUDITORY-CORTEX; EVOKED MAGNETIC-FIELDS; TONOTOPIC ORGANIZATION; STIMULATION; MECHANISMS; STIMULUS; CAT;
Keywords:
auditory; head-related transfer function; HRTF; magnetoencephalography; MEG; NIm; sound localization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Palomaki, K Helsinki Univ Technol, Lab Acoust & Audio Signal Proc, POB 3000, FIN-02015TKK, Finland Helsinki Univ Technol POB 3000 TKK Finland FIN-02015 Finland
Citazione:
K. Palomaki et al., "Sound localization in the human brain: neuromagnetic observations", NEUROREPORT, 11(7), 2000, pp. 1535-1538

Abstract

Sound location processing in the human auditory cortex was studied with magnetoencephalography (MEG) by producing spatial stimuli using a modern stimulus generation methodology utilizing head-related transfer functions (HRTFs). The stimulus set comprised wideband noise bursts filtered through HRTFsin order to produce natural spatial sounds. Neuromagnetic responses for stimuli representing eight equally spaced sound source directions in the azimuthal plane were measured from 10 subjects. The most prominent response, the cortically generated Nlm, was investigated above the left and right hemisphere. We found, firstly, that the HRTF-based stimuli presented from different directions elicited contralaterally prominent Nlm responses. Secondly, we found that cortical activity reflecting the processing of spatial sound stimuli was more pronounced in the right than in the left hemisphere. NeuroReport 11:1535-1538 (C) 2000 Lippincott Williams & Wilkins.

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Documento generato il 22/01/20 alle ore 06:39:10