TY  - JOUR
A1  - Vitali, P.
A1  - Abutalebi, Jubin
A1  - Tettamanti, M.
A1  - Rowe, J.
A1  - Scifo, P.
A1  - Fazio, F.
A1  - Cappa, Stefano F.
A1  - Perani, Daniela
T1  - Generating animal and tool names : an fMRI study of effective connectivity
N2  - The present fMRI study of semantic fluency for animal and tool names provides further evidence for category- specific brain activations, and reports task-related changes in effective connectivity among defined cerebral regions. Two partially segregated systems of functional integration were highlighted: the tool condition was associated with an enhancement of connectivity within left hemispheric regions, including the inferior prefrontal and premotor cortex, the inferior parietal lobule and the temporo-occipital junction; the animal condition was associated with greater coupling among left visual associative regions. These category-specific functional differences extend the evidence for anatomical specialization to lexical search tasks, and provide for the first time evidence of category-specific patterns of functional integration in word-retrieval. (c) 2004 Elsevier Inc. All rights reserved
Y1  - 2005
SN  - 0093-934X
ER  -