Functional Specialisation Zeki (1993, 2001)

Functional Specialisation Zeki (1993, 2001)

1. Different cortical areas are specialised for different visual fucntioning

2. Why might there be functional specialisation in the visual brain

   • 1) objects attributes occur in an unpredictable combination
     • 2) Required processing differs across attributes e.g. motion processing involves integrating information from two or more points in time. In contrast, form or shape processing involves considering spatial relationship of elements to each other at one point in a time

3. v1 and v2: are involved at an early stage of visual processing. Contain different groups of cells responsive to colour and form

4. V3 and V3A: Cells in these areas are responsive to form but not colour

5. V4: Cells in this area are responsive to colour, many are responsive to line orientation

6. V5: specialised for visual motion