Week 6

Question 1

Simple

Answer 1

Layer 4:responds to lines/edges, orientation specific

Question 2

Complex

Answer 2

Layers 2-3 and 5-6: larger receptive fields, orientation and motion but not place specific

Question 3

Hyper complex

Answer 3

Shape, size, movement, orientation, not place specific “feature detectors”

Question 4

Temporal lobe

Answer 4

Controls additional maps of visual fields

Question 5

Inferotemporal cortex

Answer 5

Damage leads to “psychic blindness”, can see objects but can’t identify them, visual agnosia

Question 6

Superior temporal lobe

Answer 6

Neurons respond to highly specific visual stimuli such as hands and faces

Question 7

Inferior front gurus

Answer 7

Superior parietal lobe. “Mirror neurons” fire when you perform task or see another person do it

Question 8

Parietal lobe

Answer 8

If lesion, can identify objects by sight but can judge locations

Question 9

Radiance

Answer 9

Amount of light coming from light source

1 lumen =radiance of standard candle

Question 10

Illuminance

Answer 10

Amount of light falling in a surface. 1 lux= 1 lumen/m^2

Question 11

Luminance

Answer 11

% of light reflected from a surface. 1 candela/m^2= illuminance* relectance/100

Question 12

Retinal illuminance

Answer 12

% of light that reflects from a surface that actually enters pupil and reaches retina 1 troland =1 candela/m^2 seen through 1mm^2 pupil

Question 13

Brightness

Answer 13

Subjective impressions of light energy s=I*.33

Question 14

Scotoma

Answer 14

Damage to a piece of visual cortex leads to blindness in specific region of visual field