Chapter 2 - Sensation and Preception

Question 1

White of the eye

Answer 1

Sclera

Question 2

Single rhodopsin, low sensitivity to detail, permit night vision, no color preception

Answer 2

Rods

Question 3

Object recognition by parallel processing and feature detection, takes individual sensory stimuli combines together to create cohesive image, slower but less mistakes

Answer 3

Bottom-up

Question 4

Info from man cells, group to form optic nerve

Answer 4

Ganglion Cells

Question 5

3 places where vision is processed

Answer 5

Lateral Geniculate Nucleus, Visual Cortex, and Superior Colliculus

Question 6

Receive info from multiple retinal cells, edge detection and contrast

Answer 6

Horizontal and Amacrine Cells

Question 7

Ability to use Bottom-up/Top-down processes to create complete picture

Answer 7

Perceptual Organization

Question 8

Inner most layer of the eye, contains the actual photoreceptors that transduce light into electrical information the brain can process

Answer 8

Retina

Question 9

Pain perception is part of the somatosensory

Answer 9

Nociceptors

Question 10

3 types, sensitive to color, best in bright light, sense fine details

Answer 10

Cones

Question 11

Ability to identify characteristics, apply characteristics to memory, recall word or objects

Answer 11

Parallel Processing

Question 12

states there is a constant ratio between the change stimulus magnitude needed to produce jdn and magnitude of original stimulus

Answer 12

Weber’s Law

Question 13

Normal temperature of the skin

Answer 13

Physiological Zero

Question 14

Reduced to touch when listed as a sense, but is actually quite complex, four modalities: pressure, vibration, pain, and temperature

Answer 14

Somatosensation

Question 15

Refers to the idea that we perceive certain characteristics of objects to remain the same

Answer 15

Constancy

Question 16

Direct input for rods/cones, highlight gradients, synapse with ganglion cells

Answer 16

Bipolar Cells

Question 17

Driven by memories and expectations, allow brain to recognize whole object then its components based on these expectations, quickly analyze without specific parts

Answer 17

Top-down

Question 18

Respond to electromagnetic waves in the visible spectrum

Answer 18

Photoreceptors

Question 19

Ability to tell where one’s body is in space, proprioception

Answer 19

Kinesthetic Sense

Question 20

Refers to minimum distance necessary between two points of stimulation on the skin such that the points will be felt as two distinct stimuli

Answer 20

Two-point Threshold

Question 21

Focuses incoming light, clear, domelike

Answer 21

Cornea

Question 22

Recognition of features, identify desired object in visual field, narrow down specific thing

Answer 22

Feature Processing