Chapter 6 Sensation and Perception

Question 1

Figure-ground concept

Answer 1

The idea that something is in the “Front” and another image in the back. Example: candle

Question 2

Illusory Contours

Answer 2

SOmething we can see that isn’t really there (ex: triangle based on contours)

Question 3

Context Effect

Answer 3

Context helping our minds elliminate oddities (Ex: CAT HAT)

Question 4

Depth Perception

Answer 4

The way objects relate to eachother in space and how we percieve that information (ex the impossible cube)

Question 5

Binocular Cues

Answer 5

using both eyes to percieve

Question 6

Monocular

Answer 6

Using each eye seperatly to perceive

Question 7

Where are predators vs. preys eyes located on head?

Answer 7

Prey on the sides (so they can see wide range) Predator in the front (so they can see detail)

Question 8

The Ponzo Illusion

Answer 8

The railroad example. Angles effect how long we think two bars are.

Question 9

The Ames Box

Answer 9

We have models that we work with that when distorted, make it difficult to organize what we see. Box without right angles and person looks huge

Question 10

Muller Lyon Illusion

Answer 10

The ends of lines having outward arrow or inward arrow affecting our peception of line length

Question 11

Perceptual Set

Answer 11

Mental predisposition to perceive one thing over the other (lady/old man pic)

Question 12

Perceptual Adaptation

Answer 12

Ability to quickly adjust to manipulated visual field

Question 13

Bottom Up Processing

Answer 13

Using raw receptor stimuli information to interpret the outside world

Question 14

Top Down Processing

Answer 14

using high level processing and feeding off of previous experience to form perception

Question 15

Transduction

Answer 15

Taking raw stimuli and transforming it into signals that can be send to the brain

Question 16

Absolute Threshold

Answer 16

Amount of stimulant needed to react 50 percent of the time

Question 17

Subliminal

Answer 17

stimuli that fall below the absolute threshold for awareness

Question 18

Priming

Answer 18

associations made unconsiously that predispose us to perceive a certain way

Question 19

Difference Threshold

Answer 19

minimal difference needed for a person to detect 1/2 the time

Question 20

Webers Law

Answer 20

for something to be different it must meet minimal percentage

Question 21

Sensory Adaptation

Answer 21

diminished sensitivity to stimuli because of constant presence

Question 22

Parallel Processing

Answer 22

visual cortex processes color, motion, depth in different areas all at once

Question 23

Young Helmholtz trichromaticc theory

Answer 23

there are three color receptors in retina that fight to express color

Question 24

Opponent Process Theory

Answer 24

Three “color battles” exist. Red and green go town same tunnel so can’t see red and green at same time

Question 25

Cochlea

Answer 25

snail shaped tube in inner ear responsible for vibrating which causes signal to be sent to brain

Question 26

Cochlea Implant

Answer 26

Insertable implant that functions to tranfer hearing to electrical impulses that are sent to the brain

Question 27

gate control theory

Answer 27

spinal cord opens and closes based on sensitivity to pain

Question 28

controlling pain

Answer 28

use distraction and placebos to increase pain threshold