Lateralization of phonetic and pitch discrimination in speech processing.
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Lateralization of phonetic and pitch discrimination in speech processing. / Zatorre, R J; Evans, A C; Meyer, E; Gjedde, A.
I: Science, Bind 256, Nr. 5058, 1992, s. 846-9.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Lateralization of phonetic and pitch discrimination in speech processing.
AU - Zatorre, R J
AU - Evans, A C
AU - Meyer, E
AU - Gjedde, A
PY - 1992
Y1 - 1992
N2 - Cerebral activation was measured with positron emission tomography in ten human volunteers. The primary auditory cortex showed increased activity in response to noise bursts, whereas acoustically matched speech syllables activated secondary auditory cortices bilaterally. Instructions to make judgments about different attributes of the same speech signal resulted in activation of specific lateralized neural systems. Discrimination of phonetic structure led to increased activity in part of Broca's area of the left hemisphere, suggesting a role for articulatory recoding in phonetic perception. Processing changes in pitch produced activation of the right prefrontal cortex, consistent with the importance of right-hemisphere mechanisms in pitch perception.
AB - Cerebral activation was measured with positron emission tomography in ten human volunteers. The primary auditory cortex showed increased activity in response to noise bursts, whereas acoustically matched speech syllables activated secondary auditory cortices bilaterally. Instructions to make judgments about different attributes of the same speech signal resulted in activation of specific lateralized neural systems. Discrimination of phonetic structure led to increased activity in part of Broca's area of the left hemisphere, suggesting a role for articulatory recoding in phonetic perception. Processing changes in pitch produced activation of the right prefrontal cortex, consistent with the importance of right-hemisphere mechanisms in pitch perception.
M3 - Journal article
C2 - 1589767
VL - 256
SP - 846
EP - 849
JO - Science
JF - Science
SN - 0036-8075
IS - 5058
ER -
ID: 14946874