Imitation and speech: commonalities within Broca's area
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Imitation and speech: commonalities within Broca's area. / Kühn, Simone; Brass, Marcel; Gallinat, Jürgen.
in: BRAIN STRUCT FUNCT, Jahrgang 218, Nr. 6, 01.11.2013, S. 1419-27.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - Imitation and speech: commonalities within Broca's area
AU - Kühn, Simone
AU - Brass, Marcel
AU - Gallinat, Jürgen
PY - 2013/11/1
Y1 - 2013/11/1
N2 - The so-called embodiment of communication has attracted considerable interest. Recently a growing number of studies have proposed a link between Broca's area's involvement in action processing and its involvement in speech. The present quantitative meta-analysis set out to test whether neuroimaging studies on imitation and overt speech show overlap within inferior frontal gyrus. By means of activation likelihood estimation (ALE), we investigated concurrence of brain regions activated by object-free hand imitation studies as well as overt speech studies including simple syllable and more complex word production. We found direct overlap between imitation and speech in bilateral pars opercularis (BA 44) within Broca's area. Subtraction analyses revealed no unique localization neither for speech nor for imitation. To verify the potential of ALE subtraction analysis to detect unique involvement within Broca's area, we contrasted the results of a meta-analysis on motor inhibition and imitation and found separable regions involved for imitation. This is the first meta-analysis to compare the neural correlates of imitation and overt speech. The results are in line with the proposed evolutionary roots of speech in imitation.
AB - The so-called embodiment of communication has attracted considerable interest. Recently a growing number of studies have proposed a link between Broca's area's involvement in action processing and its involvement in speech. The present quantitative meta-analysis set out to test whether neuroimaging studies on imitation and overt speech show overlap within inferior frontal gyrus. By means of activation likelihood estimation (ALE), we investigated concurrence of brain regions activated by object-free hand imitation studies as well as overt speech studies including simple syllable and more complex word production. We found direct overlap between imitation and speech in bilateral pars opercularis (BA 44) within Broca's area. Subtraction analyses revealed no unique localization neither for speech nor for imitation. To verify the potential of ALE subtraction analysis to detect unique involvement within Broca's area, we contrasted the results of a meta-analysis on motor inhibition and imitation and found separable regions involved for imitation. This is the first meta-analysis to compare the neural correlates of imitation and overt speech. The results are in line with the proposed evolutionary roots of speech in imitation.
KW - Frontal Lobe
KW - Functional Neuroimaging
KW - Hand
KW - Humans
KW - Imitative Behavior
KW - Likelihood Functions
KW - Models, Neurological
KW - Speech
U2 - 10.1007/s00429-012-0467-5
DO - 10.1007/s00429-012-0467-5
M3 - SCORING: Journal article
C2 - 23124975
VL - 218
SP - 1419
EP - 1427
JO - BRAIN STRUCT FUNCT
JF - BRAIN STRUCT FUNCT
SN - 1863-2653
IS - 6
ER -