Otto, Carolin
[VerfasserIn]
;
Kovács, Gyula
[AkademischeR BetreuerIn];
Witte, Otto W.
[AkademischeR BetreuerIn];
Kriegstein, Katharina von
[AkademischeR BetreuerIn]Friedrich-Schiller-Universität Jena
Is the right anterior superior temporal sulcus involved in speaker-identity recognition?
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Medientyp:
E-Book;
Hochschulschrift
Titel:
Is the right anterior superior temporal sulcus involved in speaker-identity recognition?
:
a study using transcranial direct current stimulation
Anmerkungen:
Tag der Verteidigung: 06.10.2020
Zusammenfassungen in deutscher und englischer Sprache
Beschreibung:
Neuroimaging studies have revealed regions in the human brain that respond preferentially to human voices. These regions are mostly located along the superior temporal gyrus and sulcus (STG/S). It has been hypothesized that the right anterior STG/S is crucial for voice-identity recognition because the amplitudes of anterior STG/S neuroimaging responses correlate positively with voice-identity recognition performance. Here, my aim was to test this hypothesis by using non-invasive transcranial direct current stimulation (tdcs) in a randomized double-blind sham- controlled within-participants design. 24 neurotypical participants were familiarized with four unfamiliar speakers’ voices and were then tested on voice-identity and speech recognition. While performing the voice-identity and speech recognition test, participants received anodal, cathodal, and sham tdcs on three different days, respectively. As hypothesized, voice-identity recognition was improved when applying anodal tdcs to the right anterior STG/S as compared to cathodal and sham. However, this was only the case on day three. My results support the hypothesis that the right anterior STG/S is behaviourally relevant for identifying a speaker’s voice.