PS365 Chapter 13: PS365 Chapter 13 The Occipital Lobes
Document Summary
The occipital lobes: patient p. m, solider in wwii, struck by bullet that went through the back of his brain, survived. In the absence of colour analysis, dogs/cats see black and white world, but based on the previously mentioned information, they also have generally reduced visual capabilities. Information from blob areas of v1 v4 (color area: cells i(cid:374) v(cid:1008) a(cid:396)e(cid:374)"t solel(cid:455) (cid:396)espo(cid:374)sive to colour (some respond to colour and form) Information from v1 v2 v5 (area mt middle temporal: detects motion. Information from v1+v2 v3: dynamic form (the shape of objects in motion) Visual recognition: we can recognize objects and respond to visual information, e. g. Visual attention: too much available information to process all of it, so we only look at important features, neurons in the cortex have various attentional mechanisms, e. g. If a certain movement is to be executed. Independent mechanisms of attention are required for guiding movements (parietal lobe) and for recognizing objects (temporal lobe)
