Adaptation to speaker's voice in right anterior temporal lobe

  title={Adaptation to speaker's voice in right anterior temporal lobe},
  author={Pascal Belin and Robert J. Zatorre},
Little is known on how voices are represented in the brain. We used fMRI to investigate whether parts of auditory cortex would be sensitive to the repetition of a speaker's voice. Subjects were scanned while passively listening to spoken syllables, presented in blocs in which either syllable or speaker were repeated. Only one cortical region, located in the anterior part of the right superior temporal sulcus (STS), responded differently to the two conditions: activation relative to the silent… 
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It is shown, using functional magnetic resonance imaging in human volunteers, that voice-selective regions can be found bilaterally along the upper bank of the superior temporal sulcus (STS), and their existence sheds new light on the functional architecture of the human auditory cortex.
Vocal identification of speaker and emotion activates differerent brain regions
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“sparse” temporal sampling is presented, using this technique, single volumes of brain images are acquired at the end of stimulus and baseline conditions, and the effective auditory stimulus for the activation is not masked by the scanner noise.
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Analysis of the formant data shows numerous differences between the present data and those of PB, both in terms of average frequencies of F1 and F2, and the degree of overlap among adjacent vowels.
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