Axial (cross sectional) brain fMRI obtained while the subject's right hand/fingers were stroked by the technologist and with the subject finger tapping of both hands at the same time. Areas of BOLD (blood oxygen level dependent) activation have been overlaid on a structural 3D volume T1 weighted sequence. precs = precentral sulcus, precg = pre-central gyrus (primary motor strip), pocg = post-central gyrus (primary sensory strip), ces = central sulcus, sma = supplementary motor region, hmk = hand motor knob. Blue is motor activation. Orange is sensory activation. | |
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Credit: | Science Photo Library / Living Art Enterprises |
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