Neural process underlying gap detection for spectrally rich and asymmetrical markers

Rika Takegata, Roope Heikkilä, Risto Näätänen

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Sammanfattning

"Processing of silent gaps of the order of milliseconds is crucial in speech perception. To investigate such process, we compared gap detection for spectrally symmetrical, slightly or widely asymmetrical markers, using the mismatch negativity (MMN), an index of preattentive change detection in the brain. The slightly asymmetrical markers declined the MMN amplitude alone, but the widely asymmetrical markers affected both the MMN amplitude and latency, suggesting that the influence of spectrally asymmetrical markers on gap detection is not uniform across different magnitude of asymmetries. In contrast to the prevailing view, the MMN obtained indicated that the effects of marker asymmetry took place as early as at preattentive stage. NeuroReport 20:1120-1124 (C) 2009 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins."
Originalspråkengelska
TidskriftNeuroReport
Volym20
Utgåva12
Sidor (från-till)1120-1124
Antal sidor5
ISSN0959-4965
DOI
StatusPublicerad - 2009
MoE-publikationstypA1 Tidskriftsartikel-refererad

Vetenskapsgrenar

  • 515 Psykologi

Citera det här

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Neural process underlying gap detection for spectrally rich and asymmetrical markers. / Takegata, Rika; Heikkilä, Roope ; Näätänen, Risto.

I: NeuroReport, Vol. 20, Nr. 12, 2009, s. 1120-1124.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

TY - JOUR

T1 - Neural process underlying gap detection for spectrally rich and asymmetrical markers

AU - Takegata, Rika

AU - Heikkilä, Roope

AU - Näätänen, Risto

PY - 2009

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N2 - "Processing of silent gaps of the order of milliseconds is crucial in speech perception. To investigate such process, we compared gap detection for spectrally symmetrical, slightly or widely asymmetrical markers, using the mismatch negativity (MMN), an index of preattentive change detection in the brain. The slightly asymmetrical markers declined the MMN amplitude alone, but the widely asymmetrical markers affected both the MMN amplitude and latency, suggesting that the influence of spectrally asymmetrical markers on gap detection is not uniform across different magnitude of asymmetries. In contrast to the prevailing view, the MMN obtained indicated that the effects of marker asymmetry took place as early as at preattentive stage. NeuroReport 20:1120-1124 (C) 2009 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins."

AB - "Processing of silent gaps of the order of milliseconds is crucial in speech perception. To investigate such process, we compared gap detection for spectrally symmetrical, slightly or widely asymmetrical markers, using the mismatch negativity (MMN), an index of preattentive change detection in the brain. The slightly asymmetrical markers declined the MMN amplitude alone, but the widely asymmetrical markers affected both the MMN amplitude and latency, suggesting that the influence of spectrally asymmetrical markers on gap detection is not uniform across different magnitude of asymmetries. In contrast to the prevailing view, the MMN obtained indicated that the effects of marker asymmetry took place as early as at preattentive stage. NeuroReport 20:1120-1124 (C) 2009 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins."

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