Perception of Colour and Motion Flashcards
What layer of V1 do M cells terminate?
4Calpha
What layer of V1 do P cell terminate?
4Cbeta
Which layer of V1 is important for motion and therefore have cells with directional selectivity?
layer 4B
What are the two parallel pathways of visual processing and what do they each process?
the dorsal stream for processing where an object is and the ventral stream for processing what an object is
What is area MT?
a cortical area in the middle temporal lobe that is part of the dorsal stream of visual processing and is responsible for processing object motion
Where does area MT receive input from?
V1 (layer 4B), V2, V3
Describe the receptive field of P ganglion cells
colour opponent centre surround
What is area V4?
a cortical area in the ventral stream important for perception of shape and colour
What is area IT?
a cortical area in the ventral stream important for visual memory and perception
What are neurons in are IT particularly attuned to seeing?
faces
What are the three types of colour blindness?
monochromacy (only one type of cone works), dichromacy (two functioning cones) and anomalous trichromacy (where one cone doesn’t work properly)
What is a protanope?
someone who lacks the red cone
What is a protanomal?
someones who’s red cone is abnormal
What is a deutanope?
someone who lacks the green cone
What is a deutanomal?
someone who’s green cone is abnormal
