Introduction to Cognitive Psychology - Department of Psychological ...

Prof. Greg Francis 8/14/12Spatial responsesSimple cellsYou have manydifferent suchcells withreceptive fieldsOn-center, off-surround cells send action potentials tosimple cells in parts of visual cortex, which have orientedreceptive fieldsthat arecentered atdifferentlocationsThey responddifferently to anedgePurdue UniversityPurdue UniversitySimple cellsSimple cellsOn-center, off-surround cells send action potentials tosimple cells in parts of visual cortex, which have orientedreceptive fieldsSimple cells come in a variety of types,but all are sensitive to bars or edges of apreferred orientation at a particularlocationPurdue UniversityPurdue UniversityInformation processingFor simple cells, an image like thisInformation processingFor simple cells, an image like this is coded something like thisStrongresponsesat edges!Purdue UniversityPurdue UniversityPSY 200: Intro. to Cognitive Psychology 4