Sensory Perception

Question 1

Visual cues allows us to perceptually orgnaize by taking to account the following cues ___, ___, ___, and ____

Answer 1

depth, form, motion, and constancy

Question 2

Humans have two eyes therefore we receive ___ cues. This gives sense of ___

Answer 2

binocular cues

Depth

Question 3

What is Retinal dispairty

Answer 3

when eyes are 2.5 inches apart so we get slightly different views of objects and an idea on depth

Question 4

What is convergence

Answer 4

gives humans idea of dpeth based on how much eyeballs are turned

Question 5

Things far away - muscles of eyes ___

Things close to us - muscles of eyes ___

Answer 5

relax

contract

Question 6

What are monocular cues?

Answer 6

Visual cuces that require only one eye

Question 7

Moncular cues can give a sense of what 8 things

Answer 7

form, relative size, interposition (overlap), relative height, shading and contour, motion, constancy

Question 8

Relative size

Answer 8

infer with one eye, closer and object is bigger, farther is smaller. Gives us idea of form

Question 9

Interposition (overlap)

Answer 9

Perception that one object is in fornt of another (object that is infront is closer

Question 10

relative height

Answer 10

things higher are perceived farther than those lower

Question 11

Shading and contour

Answer 11

using light and shadows to perceive form, depth/contours, crater/mountain

Question 12

Motion parallax

Answer 12

things farther away move slower, closer moves faster

Question 13

Monoecular cue of cosntancy

Answer 13

Size cosntancy and shape constnacy so one that appears larger because its clsoer we still think it’s the same size
a changing shape still maintains the same shape perception (

Question 14

A door opening is an example of what?

Answer 14

shape cosntancy, As the door is opening the shape is changign but we still beleive the door is a rectangle

Question 15

Color constancy

Answer 15

Despire changes in lighting whichc ahnges the image color on our retina, we still perceive that object the same color just a different lighting

Question 16

Sensory adaptatin

Answer 16

our senses adapt and change their sensitivity to stimuli

Question 17

What is the MOA for hearing adaptation?

Answer 17

Inner ear muscle –> higher noise = muscle contract to dampen vibrations

Question 18

Touch adaptation

Answer 18

temperature receptors desensitized over time

Question 19

smell adpatation

Answer 19

desensitized receptors in nose over time

Question 20

Proprioception

Answer 20

sense of body position in space –> sense of balance where you are in space

Question 21

Sight adaptation

Answer 21

down regulation or up regulation to light intesnToo bright = down regulation = pupils constirct so less light = desnsitization or rods and cones
Too dark = up regulation = pupils dialtes = lets more light in = rods and cods start synthezising light sensitive molecules

Question 22

Weber’s Law

Answer 22

The just noticeable difference JND

Question 23

Intensity difference is sually __ or __ difference

Answer 23

0.2 or 0.5 difference

Question 24

2 vs s.05 would feel ___

2 vs 2.2 lb weight difference would feel ___

Answer 24

same

JND

Question 25

take 5 lb weight and repalce by 5.2 lb would feel and if you repalce with 5.5 lb

Answer 25

same

JND

Question 26

Weber’s law

Answer 26

ΔI (JND)/I (initial intensity) = k (constant)

Question 27

Absolute threshold of sensation

Answer 27

min intesntiy of stimulus needed to detect a particular stimulus 50% of the time