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Visual Fields
KW 8-20
Fovea on
Cortex
KW 8-22
Occipital Lobes are Independent
KW 8-24
Visual Areas
Areas V1 – V5
KW 8-17
Visual Cortex
Figure 6.16 Receptive fieldsThe receptive field of a receptor is simply the area of the visual field from which light strikes that receptor. For any other cell in the visual system, the receptive
field is determined by which receptors connect to the cell in question.
Receptive Fields
Neural Activity
KW 8-25
Overlap in Receptive Fields
KW 8-27
Simple Cells 1
KW 8-29
Hubel and Wiesel
Nobel Prize Winners
Mapping the Visual Cortex
Simple Cells 2
KW 8-29
Complex Cells
KW 8-30
Neural Basis of Visual Perception
The Cerebral Cortex: The Shape PathwayHubel and Wiesel’s Cell Types in the Primary Visual Cortex
Simple CellsStraight lines in particular orientation
Complex Cells Straight lines in particular orientation in motion
Hypercomplex cells Edge detector (edge in motion)
Hypercomlex Cell
KW 8-31
Column Organization
KW 8-34
Lesions in visual cortex
KW 8-39
Dorsal and Ventral Streams
KW 8-14
Where
What
What and Where Cortical Areas
Neural Basis of Perception
Disorders of Object Recognition
Visual Agnosia- Inability to Recognize Objects
Prosopagnosia- Inability to recognize faces
Contralateral Neglect - neglect left side of visual world