chapter 9 Flashcards

1
Q

sensation

A

the act of absorbing raw energy (light waves, sound waves) through sensory organs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

transduction

A

conversion of this energy to neural signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

perception

A

adding meaning or representation

selecting, organizing and interpreting these signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

transduction

A

conversion of this energy to neural signals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

psychophysics

A

the just noticeable difference is the smallest amount of stimulus change we can detect

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

head turn preference test

A

when babies turn their head and act excited with new stimuli

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is webers law

A

just noticable difference.

law states the brighter the light, the more change in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

the spotlight metaphor

A

we can move our attention to focus on various areas of the visual field- a span from small to large areas of visual angle

narrowing the spotlight gives maximal processing to that part of the visual feild

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

who introduced spotlight effect, who did he prove wrong?

A

posner- spotlight effect

freud-wrong-thought you saw all

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

attention

A

concentration of mental energy to process incoming information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

extrasensory perception (esp)

A

when animals pick up on senses other than the 5 senses we have

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

light

A

electromagnetic radiation visible to our eyes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

optics

A

study of light rays and their interactions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

in a vacuum em travels in a straight line, this is described as a ___

A

ray

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

signal detection theory

A

perceptual judgment as combination of sensation and decision-making processes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

steps of signal detection theory

A

stimulus event
neural transduction
cognition/processing
response

17
Q

visual cortex (v1) (occipital cortex)

A

the occipital cortex where primary visual sensations are processed

18
Q

focal distance is what determines

A

clear vision vs blurry vision

19
Q

the occipital cortex where primary visual sensations are processed

A

visual cortex

20
Q

where do the optic nerves cross

A

optic chiasm

21
Q

know structure and function of eye

A

enter pic here

22
Q

photoreceptors

A

light sensitive that transduce light

23
Q

rods

A

sensitive to dim light but not color

24
Q

cones

A

sensitive to colors but not dim light

25
bundle of neurons from the retina to the brain
optic nerve
26
blind spot
point where the optic nerve exist...no photoreceptors
27
tapetum lucidum
reflective cells in eyes. captures light that allows you to see in dark better
28
glaucoma
when eye pressure gets too high and destroys retina
29
whats the number one cause of blindness
diabetes
30
how does stereo vision allow us to detect 3d of depth
by vergence
31
Fovea
Area of sharpest vision in the retina
32
Accommodation
Changing shape of lens to help focus on objects based on distance