NATS 1860 Lecture Notes - Two-Streams Hypothesis, Inferior Temporal Gyrus, Brodmann Area 20
21 Feb 2013
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Document Summary
Cortical pathways in using vision for object recognition. There are receptors in the brain that sense the different levels of chemicals in the blood in order to release different chemicals into the glands of the body. Orientation discrimination: 2o to 3o orientation selective neurons in v1: this is good because this shows that there are cells sensitive to different orientation in our primary visual cortex. Why were there eight alternatives instead of just two: it was to make it harder in order to confuse the students, thus to reduce the probability of corrective guessing. You can"t voluntarily decide which you"re going to use: one: when there"s something moving in the world you can track it (smooth pursuit): it was for the tracking motion of m cells. You need to process the motion to survive: two: jumps (saccades): inspect areas with detail in static scenes of p cells.
