Simple cells
Orientation selectiveDiscrete ON and OFF regions
Position sensitive
Linear – predict output from adding + and - region
Complex cells
Orientation selective
Responds to spots all over receptive field
Not position sensitive
Non-linear – cannot predict output from addition
Spatial Frequency –
The rate at which a pattern – the rate at which a pattern repeats itself (cycles per degree)
Contrast/amplitude –
how black or white a pattern is (differences in lightest and darkest part divided by the average)
Phase
starting point of a pattern
Temporal Frequency
the rate at which a pattern repeats itself
Orientation–
angle of presentation