PSYC 320 Lecture 7: 2.13 S&P Lecture
15 Feb 2017
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Document Summary
How do you know what an object is: how do you know its category and definition. The ventral visual pathway: important for object recognition, v4: color, curvature, lateral occipital cortex: meaningful shapes, specialization within inferotemporal cortex: area mt (v5): motion (direction and speed, intraparietal sulcus: Functional dissociations: if you lesion an area- your ability to individuate 2 objects becomes impaired, inferior temporal complex important for recognizing meaning of an object. Beyond v4: object selective responses: position invariance ( in reality, not truly invariant but very high tolerance, context invariance (in reality, not truly invariant but very high tolerance) Do you literally have one cell in your brain that responds to one particular object, so that if that object is present that one cell fires. Grandmother cell idea: a one to one. It acts as an on off switch and responds to a certain stimulus and doesn"t respond to when that stimulus is not present.
