Sagittal (from the side) brain fMRI obtained while the subject's right hand/fingers were stroked by the technologist the subject was finger tapping at the same time. Areas of BOLD (blood oxygen level dependent) activation have been overlaid on a structural 3D volume T1 weighted sequence. Note the BOLD activation in the superior cerebellar regions which contributes to modifying motor actions. Motor activation is blue. Sensory activation is orange. precg = pre-central gyrus , pocg = post-central gyrus , ces = central sulcus, hmk = hand motor knob | |
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Credit: | Science Photo Library / Living Art Enterprises |
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