Sensation & Perception Flashcards

(46 cards)

1
Q

Sensation

A

What an individual feels when a stimulus reacts with a receptor.

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2
Q

Sensory Threshold

A

The necessary strength of a stimulus to instigate an action potential

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3
Q

Habituation

A

The filtering out of unchanging stimuli

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4
Q

Cornea

A

Cover of the eye that angles light into the pupil

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5
Q

Aqueous Humor

A

Clear liquid nourishing and diffracting the eye

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6
Q

Pupil

A

The center region in which light travels through and is dilated by the iris muscles

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7
Q

Retina

A

The back of the eye which contains photoreceptors

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8
Q

Lens

A

Angles light farther to converge on the retina in the back of the eye

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9
Q

Fovea

A

The central region in the retina with the highest concentration of photoreceptors

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10
Q

Blind Spot

A

The location of the optic nerve where there are not photoreceptors

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11
Q

Vitreous Humor

A

Liquid in the eye that bends the light the most… converges on the retina

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12
Q

Rods

A

non-color photoreceptors that work in low light

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13
Q

Cones

A

Photoreceptors that collect the high intensity color light; produce colored vision and the sharpness an image has, due to their higher concentration

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14
Q

Trichromatic Theory

A

There are three colors of photoreceptors (red, blue, and green ) which produce the rainbow of colors we see when activated in various proportions

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15
Q

Opponent-Process Theory

A

There are four types of cones, (red, blue, green, and yellow) that go in pairs, [red with green, and blue with yellow] that are activated by different colors and when fatigued cause the opponent cone to be stimulated more shifting the color visualized

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16
Q

Afterimage

A

visual sensation that persists briefly after stimulus ends

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17
Q

Colorblindness

A

One kind or many kinds of cones that are damaged causing one to see in limited colors and grays

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18
Q

Place Theory

A

Cell hairs closer to the oval window vibrate at higher frequencies than those farther away

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19
Q

Volley Principle

A

Cell hairs alternate firing which adds up to a desired frequency

20
Q

Frequency Theory

21
Q

Conduction Impairment

A

The sound waves aren’t sent from the eardrum to the cochlea

22
Q

Nerve Hearing Impairment

A

The signal isn’t sent down the nerves due to auditory pathway damage

23
Q

Five Tastes

A

Sweet, Sour, Bitter, Salty, Umami(Brothy)

24
Q

Congenital insensitivity to pain with anhidrosis (CIPA)

A

The inability to feel pain

25
Kinesthetic Sense
The location of body parts in relation to another
26
Vestibular Sense
Otolith organs and semicircular canal that tell the movement of the body (example... the ears tell head movement)
27
Size Constancy
A objects size remains the same no matter the distance away
28
Somatic Pain
2 kinds of skin pain - The initial sharp intense pain - The longer lasting throbbing or aching pain
29
Figure-Ground
The perceiving of objects as existing in the background
30
Motion Sickness
Nauseous feeling arising from the difference between what the eyes see and what the ears are sensing
32
Reversible Figures
The background and figure are interchangeable
33
Proximity
When things are together they tend to be grouped in clumps
34
Similarity
Things are perceived to be from the same group when they look alike/similar
35
Closure
Tendency to finish object's shapes that are not complete
36
Continuity
One tends to see a large image over the complex broken pieces composing it
37
Contiguity
How one tends to perceive things close in time as being connected
38
Shape Constancy
Objects are given a specific shape even if looked at in a weird angle
39
Linear Perspective
Lines parallel appear to converge as they move into the distance
40
Relative Size
Due to size consistency, the smaller an object is the farther away it is
41
Overlap
Objects blocked by another are farther away
42
Aerial Perspectivee
Far away objects are hazier because of dirt, dust, and pollutants
43
Texture Gradient
A pattern farther away - the pattern is less likely to be seen
44
Motion Paradox
Objects farther away look to move slower
45
Convergence
The movement of the eyes when focusing on an object | - Converge (cross-eyed) when objects are close
46
Binocular Disparity
The summation of what both eyes seem from their different perspectives
47
Brightness Constancy
Objects will be perceived to have a specific brightness no matter the light change