Visual Cortex and Beyond

Question 1

feature detectors

Answer 1

Neurons that fire in response to specific features
major types: simple cortical, complex cortical, end-stopped cortical

Question 2

Orientation tuning curves

Answer 2

turn lines in varying orientations and see how many impulses are received

Question 3

Complex cortical cells

Answer 3

respond best to movement across the receptive field
of particularly oriented bar
example: image dropping down from slide projector unexpectedly triggered activity in our of these neurons

Question 4

end-stopped cortical

Answer 4

responds to corners, angles, or bars of a particular length moving in a particular direction

Question 5

absolute threshold

Answer 5

smallest amount of energy needed to detect a stimulus

Question 6

method of limits

Answer 6

present stimuli of different intensities, average the cross-over point

Question 7

Selective Adaptation

Answer 7

refers to a phenomenon in which neurons tuned to specific stimuli
properties fatigue with prolonged exposure to stimuli containing those properties

Question 8

selective rearing

Answer 8

refers to raising animals in environments that contain only
certain types of stimuli (while depriving exposure to other kinds)
example: kittens in striped rooms

Question 9

lesioning or ablation experiments

Answer 9

An animal is trained to indicate perceptual capacities. remove a part of brain. see what perceptual abilities remain

Question 10

Removal of temporal lobe tissue resulted in problems with the

Answer 10

object discrimination task

Question 11

Removal of parietal lobe tissue resulted in problems
with the

Answer 11

landmark discrimination task