8.4 Visual Perception + 8.4.1 Biological Factors Part 1

Question 1

Visual Perception

Answer 1

The brain’s ability to make sense of what the eyes see

Question 2

Visual Sensation

Answer 2

Process of the eyes physically receiving and responding to light from the environment

Question 3

How does our eyes receive light?

Answer 3

Stimulus energy -> Reception -> Transduction -> Transmission -> Interpretation and Organisation

Question 4

Stimulus Energy

Answer 4

Light energy going into our eyes

Question 5

Reception

Answer 5

Photoreceptors in the eye detect and respond to light

Question 6

Transduction

Answer 6

Process where receptors change energy into chemical signals, which travels to the brain as electrical signals

Question 7

Transmission

Answer 7

Sends sensory info in the form of electrical signals to relevant areas of the brain through optic nerve

Question 8

Interpretation

Answer 8

The primary visual cortex receives the info and interprets it: assigns meaning to it so it can understood

Question 9

Organisation

Answer 9

Involves assembling the features of the information in a meaningful way

Question 10

Types of Receptors

Answer 10

Rods and Cones

Question 11

Rods

Answer 11

Respond to low levels of light
Poor at detecting fine details
Not involved in colour vision (dominant in low light)

Question 12

Cones

Answer 12

Respond to high levels of light
Responsible for well-lit conditions
Detects fine details, colour vision (dominant in well-lit)