Sensation and Perception

Question 1

Cornea

Answer 1

Gathers and filters incoming light

Question 2

Iris

Answer 2

Controls size of pupil; colored part of eye

Question 3

Lens

Answer 3

Refracts incoming light to focus on retina

Question 4

Retinal Disparity

Answer 4

Space between eyes; allows for binocular vision

Question 5

Horizontal Cells/Amacrine Cells

Answer 5

Integrates signals from eye ganglion cells and performs edge sharpening of vision

Question 6

Parallel Processing

Answer 6

Processes color, form and motion at same time

Question 7

Two Point Threshold

Answer 7

Minimum distance necessary between two points of stimulation on skin that can be detected as two separate points of stimuli instead of one

Question 8

Nociceptors

Answer 8

Pain receptors

Question 9

Gate Theory of Pain

Answer 9

Pain receptors are “closed” to non painful stimuli (like a gate)

Question 10

Propioception

Answer 10

Sense of kinesthesia/where your body is/motion

Question 11

Top Down Processing

Answer 11

When the perception of stimuli begins with the perciever’s previous knowledge and expectations

For example: Previous knowledge of how a car works allows a driver to know the steering wheel steers

Question 12

Bottom up Processing

Answer 12

Details make up the whole. Perception is dependent on the details of the thing being perceived and not prior knowledge about the thing

EX: someone would see a steering wheel and, with no prior knowledge, know that the holes in the wheel make for easier holding the wheel