Mind map
Week 2 cont.
Map content
Week 2 cont.
cortical processes in colour perception
- is there a specialised colour centre in the brain that is responsible for colour perception? - cerebral chromatopsia suggests there is - patients with cerebral chromatopsia perceive the world to be shades of grey - patients still have access to wavelength info but cannot consciously perceive colour
- Trichromatic stage - retina/photoreceptors - colour opponent stage = ganglion cells/LGN - primary visual cortex V1 - blobs = small patches of cells that respond to the colour of stimulus (physical wavelength) - area V4 - cells respond to perceived colour
- single cell recording - V1 cellos respond to wavelength
- hadjikhani et al 1998 - investigated areas of brain more activate by coloured stimulus than black/white stimulus - findings - areas V1. V2, V3 activate - also area V8 activated - colour after effects - findings only V8 active - suggests V8 might be site of colour consciousness
- single cell recording - V1 cellos respond to wavelength
- Trichromatic stage - retina/photoreceptors - colour opponent stage = ganglion cells/LGN - primary visual cortex V1 - blobs = small patches of cells that respond to the colour of stimulus (physical wavelength) - area V4 - cells respond to perceived colour
- is there a specialised colour centre in the brain that is responsible for colour perception? - cerebral chromatopsia suggests there is - patients with cerebral chromatopsia perceive the world to be shades of grey - patients still have access to wavelength info but cannot consciously perceive colour
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- Sensation and Perception Mind Map on Week 2 cont., created by Abbey Wrigley on 21/05/2019.
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- Abbey Wrigley
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