Reach and Grasp online Flashcards
visual cortex to temporal cortex
perception and object recognition
visual cortex to parietal lobe
localization
visual pathways involved in reach and grasp
dorsal stream pathway
ventral stream pathways
action relevant info for reaching including object position, structure and orientation
mediates sensorimotor transfromation
dorsal stream pathway
visual to parietal cortex
conscious visual perceptual experience
perceptual identification of objects
ventral stream pathway
visual to temporal cortex
essential for control of grip forces
cutaneous afferent input
critical for control of grasp
somatosensory cortex
finger and thumb pads direct force toward palm
power grip
finger and thumb direct forces to each other
precision grip
two requirements for successful grasp
and must be adapted to shape, size, and use of object
finger movements must be timed in relation to transport
pregrasp hand shaping is affected by
intrinsic and extrinsic properties of the object