NROC64H3 Final: Final Exam Notes
Document Summary
Sc (intermediate laers) md (medial dorsal thalamus) fef (frontal cortex) Used orthodromic (sc md) stimulation and antidromic (fef md) to determine a functional connection between sc and fef. Then, observed a rf shift to a future field before the actual saccade; however, no future field when md pathway is inhibited: pi pathway: Induces omnidirectional inhibition of cortex 60ms before saccade to eliminate retinal blur; eliminates distracting vision during saccades. About 10ms after the saccade, the brain interprets the motion in the opposite direction to counteract the blur that would have been produced if it didn"t: pl/pdm pathway: Sc (intermediate and superficial layers) pl and pdm (lateral pulvinar) parieto-occipital cortex. Strict link between covert attention (orienting attention) and overt attention (programming ocular movements) Oculomotor program for moving the eyes shifts attention. Attention without moving eyes is achieved by inhibiting eye movement.
