L33 Psych 100B Lecture Notes - Lecture 51: Optical Flow, Receptive Field, Parietal Lobe
4 Nov 2018
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Aftereffect gradually disappears: what you do changes what you perceive, aftereffe(cid:272)t re(cid:448)eals adjust(cid:373)e(cid:374)t (cid:449)as(cid:374)"t a conscious one, action plans: subjects searches for a visual event (i. e. a change from red to black cherry). At t1 target spot appears inside rf, but not at focal point. At t1 the cells rate of firing increased. At t2 the spot disappeared but activity remained high. Special neural mechanisms referred to as bimodal neurons may explain it: bimodal neurons are neurons that respond to different modalities of stimulation (i. e. visual and tactile). Specific neuron responds to tactile stimulation of right hand and visual stimulation near the right hand (with. Rf of bimodal neuron had now expanded to include the tool: mirror neurons: the perception of actions shares brain mechanisms in common with the production of actions, activity in part of brain thought to be controlled by movement. When monkey reaches to pick up food with fingers, increase in stimulation.
