Abstract：
:The primary motor cortex (MI) is regarded as the site for motor control. Occasional reports that MI neurons react to sensory stimuli have either been ignored or attributed to guidance of voluntary movements. Here, we show that MI activation is necessary for the somatic perception of movement of our limbs. We made use of an illusion: when the wrist tendon of one hand is vibrated, it is perceived as the hand moving. If the vibrated hand has skin contact with the other hand, it is perceived as both hands bending. Using fMRI and TMS, we show that the activation in MI controlling the nonvibrated hand is compulsory for the somatic perception of the hand movement. This novel function of MI contrasts with its traditional role as the executive locus of voluntary limb movement.
journal_name
Neuronjournal_title
Neuronauthors
Naito E,Roland PE,Ehrsson HHdoi
10.1016/s0896-6273(02)00980-7subject
Has Abstractpub_date
2002-12-05 00:00:00pages
979-88issue
5eissn
0896-6273issn
1097-4199pii
S0896627302009807journal_volume
36pub_type
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