Brainscape's Knowledge GenomeTM

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


See full index

PSYC 1010 > Sensation and Perception > Flashcards

Sensation and Perception Flashcards

1
Q

What side of the body does the right side of the brain sense?

A

The left

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

Why do we have a blind spot?

A

No receptor at the optic disk, which is where the optic nerve connects to the eye

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

What is sensation?

A

The stimulation of sensory organs

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

What is perception?

A

The selection, organization, and interpretation of sensory input

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

What is synesthesia?

A

A condition where perceptual or cognitive activities trigger a sense (music triggers taste)

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

What is psychophysics?

A

The study of how physical stimuli are translated into psychological experiences

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

What is a stimulus?

A

A detectable input from the environemtn

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

What is a threshold?

A

A dividing point between energy levels that do and do not have a detectable effect

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

How do amplitude and wavelength affect vision?

A

Amplitude affects brightness and wavelength affects colour

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

How does light enter the eye?

A

The cornea

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

How do the cornea and lens project images onto retina?

A

Upside down

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

What is the lens?

A

A transparent eye structure that is behind the cornea and it focuses the light rays falling on the retina

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

What is accommodation?

A

A process which occurs when the curvature of the lens adjusts to alter visual focus

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

What is the pupil?

A

Opening in the center of the iris

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

What is the iris? What does it do?

A

The computed part of the eye and it contracts and dilates to regulate the amount of light entering the pupils

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

What is the difference between constricted and dilated pupils?

A

Constricted let’s in less light but has a clearer image and dilated let’s in more light but has a blurrier image

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

What are saccades? Why are they useful?

A

Involuntary eye movements

Essential to good vision, enhance memory, can show hidden desires

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

What is the retina? What does it do?

A

The neural tissue lining the inside back surface of the eye

Absorbs light, processes images, sends visual info to brain

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

Where do the nerves that connect the retina to the brain converge?

A

The optic disk which is where the optic nerve connects to the eye

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

What is the difference between rods and cones?

A

Rods are for night vision and peripheral vision

Cones are for day light vision and colour

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

Where is the most concentrated spot of rods and cones in retina?

A

Cones are mostly concentrated in center of eye

Rods are concentrated just outside fovea

22
Q

What is the fovea?

A

Tiny spot in center of retina that contains only cones, best visual acuity (sharp and detailed)

23
Q

What happens when light hits the receptors in retina?

A

Neural signals are passed along to the optic nerve which sends visual information to the brain

24
Q

What is the receptive field? What is it made up of?

A

The area that when stimulated affects the firing of a certain cell

The collection of rods and cones that funnel signal to a specific visual cell in the retina

25
Q

What is the optic chiasm?

A

Point where optic nerves from the inside half of each eye cross over and project to opposite half of brain

26
Q

Where do nerves from left half of the retina send signals to?

A

Left half of brain

27
Q

After the optic chiasm the optic nerve splits, what are the two pathways?

A

Main one goes to thalamus then to occipital lobe

Other goes to area in midbrain called superior colliculus before goin to thalamus then occipital lobe

28
Q

What is a reversible figure?

A

An image that is compatible with two interpretations that can shift back and forth

29
Q

What is a perceptual set? How can you create it?

A

Readiness to perceive a stimulus in a particular way

By telling someone that an image is one thing

30
Q

What is feature analysis?

A

The process of detecting specific elements in visual input and assembling them into a more complex form

31
Q

What is bottom up processing?

A

Looking at individual elements and then applying your knowledge to perceive the whole picture

Outer world to senses to brain

32
Q

What is top down processing?

A

Looking at whole image before it’s elements

Filling in gaps in images with our brains

33
Q

What is the phi phenomenon?

A

Illusion of movement created by presenting visual stimuli in rapid succesion

34
Q

What is figure and ground principle?

A

Figure is thing you look at and ground is the background, images can change depending on what you assign to be figure or ground

35
Q

What is the proximity principle?

A

Things that are close together belong together

36
Q

What is the closure principle?

A

People group elements together to create a sense of closure or completeness

37
Q

What is the similarity principle?

A

People group stimuli that are similar together

38
Q

What is simplicity principle?

A

Tend to group elements together to form a good or simple image

39
Q

What is the continuity principle?

A

Tendency to follow in whatever direction they are being led and connect points in straight or slightly curved lines

40
Q

What is distal stimuli?

A

Stimuli that lie in the distance, outside the body

41
Q

What is proximal stimuli?

A

The stimulus energies that directly affect sensory receptors

42
Q

What is a perceptual hypothesis?

A

An inference about which distal stimuli could be responsible for the proximal stimuli sensed

43
Q

What does depth perception involve?

A

Interpretation of visual cues that indicate how near or far away objects are

44
Q

What are binocular cues?

A

Clues about distance that are based around the differing views of the two eyes

45
Q

Examples of binocular cues?

A

Retinal disparity, objects project images to slightly different locations on the right and left retinas, see two different images

Angle of convergence, sense the eyes converging as they focus on closer objects

46
Q

What are monocular cues? Work best for?

A

Clues about distance based on image in a single eye

Distance

47
Q

Examples of monocular cues?

A

Relative size, same size object appears different size

Motion parallax, things closer to you move faster than things further away when in motion

Linear perspective, parallel lines go towards one another

Overlap, object that overlaps another is closer

Relative height, things that are higher are seen as further

48
Q

What is a perceptual constancy? Example?

A

Tendency to experience a stable perception in the face of continually changing sensory input

Someone walking towards you projects bigger image on retina but you don’t think person is growing

49
Q

What is a visual illusion?

A

Discrepancy between the appearance of a visual stimulus and its physical reality

50
Q

What does amplitude and wavelength affect in hearing?

A

Hearing:
Amplitude, loudness
Wavelength, pitch

51
Q

Pitch perception theories?

A

Place theory, depends on portion of basilar membrane vibrated

Frequency theory, depends on basilar membrane rate of vibration

PSYC 1010 (16 decks)

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