PSY 166 Lecture Notes - Lecture 6: Parvocellular Cell, Parietal Lobe, Two-Streams Hypothesis

• School: Hofstra University
• Department: Psychology (PSY)
• Course: PSY 166
• Professor: Dr. Ploran

Document Summary

Combine multiple end-stopped feature detectors and you get shapes like triangle or squares. Eventually get two shapes or two particular kinds of movement. Combine more and more things and you get more complex stimuli. Information from parvo lgn goes to temporal lobe through ventral stream. Information from magno lgn goes to parietal lobe through dorsal stream. Ability to recognize objects is affected by parvocellular cells (object discrimination). Magnocellular cells lose acuity but have high convergence and high sensitivity and become able to say that there are things to your left or right (where information). Teach monkey that raisins are always next to a triangle, if we then remove the temporal lobe, the (cid:373)o(cid:374)ke(cid:455) (cid:449)ill (cid:374)o lo(cid:374)ge(cid:396) (cid:271)e a(cid:271)le to do that o(cid:271)je(cid:272)t dis(cid:272)(cid:396)i(cid:373)i(cid:374)atio(cid:374) a(cid:374)d (cid:449)o(cid:374)"t (cid:271)e a(cid:271)le to tell triangles from squares. So the parietal lobe is the where/how area and has to do with our interaction and what actions we can take on those objects.