BACKGROUND: Neuropsychological and neuroimaging studies suggest that whereas the left temporal neocortex plays a crucial role in all tasks involving lexical-semantic processing, some regions of the left prefrontal convexity are selectively recruited during verb processing. OBJECTIVE: To determine if there are different neural correlates for noun and verb processing in the human brain. METHODS: Repetitive transcranial magnetic stimulation (rTMS), 20 Hz at 90% of the motor threshold, was applied to left or right prefrontal brain during object- and action-naming tasks in nine healthy subjects. RESULTS: A shortening of naming latency for actions was observed only after stimulation of left prefrontal cortex. CONCLUSION: The involvement of the left dorsolateral frontal cortex in action naming was demonstrated using rTMS.
The role of the left frontal lobe in action naming: rTMS evidence / S. F., Cappa; M., Sandrini; P. M., Rossini; K., Sosta; Miniussi, Carlo. - In: NEUROLOGY. - ISSN 0028-3878. - 59:5(2002), pp. 720-723. [10.1212/WNL.59.5.720]
The role of the left frontal lobe in action naming: rTMS evidence
Miniussi, Carlo
2002-01-01
Abstract
BACKGROUND: Neuropsychological and neuroimaging studies suggest that whereas the left temporal neocortex plays a crucial role in all tasks involving lexical-semantic processing, some regions of the left prefrontal convexity are selectively recruited during verb processing. OBJECTIVE: To determine if there are different neural correlates for noun and verb processing in the human brain. METHODS: Repetitive transcranial magnetic stimulation (rTMS), 20 Hz at 90% of the motor threshold, was applied to left or right prefrontal brain during object- and action-naming tasks in nine healthy subjects. RESULTS: A shortening of naming latency for actions was observed only after stimulation of left prefrontal cortex. CONCLUSION: The involvement of the left dorsolateral frontal cortex in action naming was demonstrated using rTMS.| File | Dimensione | Formato | |
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