PSY270H5 Lecture Notes - Lecture 3: Electroencephalography, Visual Cortex, Visual Search
Document Summary
Objects may appear anywhere on retina in any size or orientation translational invariance: size invariance. Same object can take on different forms: perceptual consistency. Object is recognized when perceived information matches with a memorized templates of objects. Fixed set of elementary properties analyzed independently in parallel across visual field. Target is defined by a single elementary feature (e. g color, orientation, etc) Very efficient due to parallel processing of elementary features (c. f feature analysis theory) Target is defined by a conjunction of elementary features (e. g color and orientation, etc) Not as a efficient as feature search because of the necessity to bind the elementary to define the target. Or is it the brain area for building and maintaining expertise in discerning very similar objects that have the same set of features. (e. g. , face, cars, birds) Measured ffa activities before and after greeble training. Greeble ffa activity before training face = greeble. Perception is critical in guiding our action.
