Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Psych > Chapter 3- Sensation and Perception > Flashcards

Chapter 3- Sensation and Perception Flashcards

You may prefer our related Brainscape-certified flashcards:
Psychology 101 flashcards GRE® Psychology flashcards
1
Q

Sensation

A

an electro chemical signal/stimulus that is picked up by sensory receptors

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

Transduction

A

when energy from the physical world is converted into an electro chemical signal/ a sensation that is sent to our brain

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

Perception

A

the brain selecting, organizing and interpreting the stimulus

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

Psychophysics

A

studying the mind’s relation to the physical world

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

absolute threshold

A

amount of energy needed to detect a stimulus (50% of the time)

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

Difference threshold

A

just noticeable difference

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

webers law

A

in order for us to detect a change, we must detect the ratio of the initial stimulus

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

Signal Detection Theory

A

a stimulus needs to be intense to be able to detect it

ex:) crowded room you look for someone and shout their name but they still won’t look at you, you whistle (the whistle is loud and a higher octave to pick up) and you are noticed

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

Sensory adaptation

A

senses can adjust to different stimuli in an environment and forget that stimulus is there

ex: you get used to wearing jewelry bc your body gets used to it

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

Wavelengths

A

distance between the peaks of each wave of energy

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

Hue

A

physical property of light (the color that we interpret from wavelengths)

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

Amplitude

A

how we experience brightness of color (400-700 nanometers)

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

Purity/Saturation

A

whiteness is added to a color making it pure

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

rods

A

takes in light to see, helps see basic stuff at night (120 million) evenly distributed in periphery

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

cones

A

perceives color, clarity/details, does NOT work in the dark (6 million), scattered in periphery

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

Foeva

A

clearest, sharpest vision (only cones in fovea and densely packed)
“We won’t have this FOREVA”

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

retinal ganglion cells

A

Makes up the optic nerve which is connected to the eye and brain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

optic nerve

A

carries neural signals from eye to brain to be processed
(made of retinal ganglion cells)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

blind spots

A

Where there is no photoreceptors and our brain cannot make sense of the visual world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

where does color exist?

A

in our minds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

blue wavelengths are

A

short

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

green wavelengths are

A

medium

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

red wavelengths are

A

long

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

opponent process theory

A

green competes w red
yellow competes w blue
black competes w white

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

left visual field

A

hits left side of both eyeballs and travels to optin chaism and crosses over to the right hemisphere

26
Q

right visual field

A

hits the right side of both eyeballs and travels to optic chasm and crosses over to the left hemisphere

27
Q

area vi

A

primary visual cortex, stritate cortex is used to see shapes, edges (outlines)

28
Q

David Hubel

A

What we see and process from the ganglion cells in the retina is categorized into several categories(Color, movement, etc.)

29
Q

Torsten Wiesel

A

discovered feature (orienation, direction) detectors, groups of neurons in visual cortex that responds to different types of visual stimuli

30
Q

parallel processing

A

perceiving many aspects on an object at once

ex:) when you see an object, you see its form, its color, how small it is, its texture, etc.

31
Q

blindsight

A

blindness in part of the visual field due to damage to the primary visual cortex

32
Q

Ventral pathway

A

object recognition

33
Q

dorsal pathway

A

where and how to get the object

“Shark (dorsal) getting to a fish”

34
Q

gestalt psychology

A

humans tend to perceive visual info by grouping objects together and perceiving whole shapes and not individual parts

35
Q

closure

A

sees images as complete objects

36
Q

continuity

A

seeing intersecting lines as a pattern, not the lines individually

37
Q

similarity

A

seeing objects that are similar as part of a pattern

38
Q

proximity

A

viewing things that are close together as a group

39
Q

linear perspective

A

depth perceition where converging paralell lines mean distance

40
Q

relative size

A

smaller objects are farther away

41
Q

relative height

A

taller objects are further away

42
Q

texture gradient

A

closer something is, the more clearly and defined it is. the further away, the more blurry

43
Q

interposition

A

object obstruction shows what is closer and further from you

44
Q

simplicity

A

mind interprets the most simple thing it can

45
Q

Ames room

A

the world isn’t how we see it, perception and perspective is everything

46
Q

change blindness

A

people are really bad at detecting visual changes

47
Q

inattentional blindness

A

not noticing things when they aren’t the focus of attention

48
Q

area MT

A

part of the brain that processes movement/motion

49
Q

pitch

A

physical property of sound (high or low frequencies)

50
Q

Loudness

A

intensity/amplitude of a sound

51
Q

cochlea

A

where transduction occurs in the ear to detect sound, looks like a snail

52
Q

basil membrane

A

fluid that vibrates the hair cells in the cochlea to detect sound

53
Q

hair cells

A

specialized neurons that are used to process hearing

54
Q

Area A1

A

part of temporal lobe of the brain, helps perceive sound

55
Q

Left hemisphere

A

processes language

56
Q

Place Code Theory

A

higher frequencies are processed closer to eardrum, lower frequencies are processed further from ear drum

57
Q

temporal code theory

A

we determine the frequency of a sound by how fast the neuron fires

58
Q

gate control theory

A

when pain signals are blocked by touch cells

ex:) bash your shin in a coffee table and it hurts really bad, by rubbing it your blocking pain signals and replacing them with touch signals

59
Q

myelinated pain

A

immediate pain, right after harmed

60
Q

unmyelinated pain

A

slower pain signals that reminds you to not use that injury or it will not heal

Psych (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions