Untitled Deck Flashcards

1
Q

What is Sensation?

A

The process of detecting, converting, and transmitting raw sensory information from the external and internal environments to the brain.

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2
Q

what is perception?

A

The process of selecting, organizing, and interpreting sensory information into meaningful patterns.

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3
Q

What are the Stages of Sensation?

A

sense, convert, transmit, perceive

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4
Q

sense

A

receptor cells detect stimuli.

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5
Q

convert

A

Receptor cells transduce stimuli into neural impulses.

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6
Q

transmit

A

Messages travel to the brain via the nervous system.

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7
Q

perceive

A

The brain assigns meaning to sensory input.

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8
Q

What is Absolute Threshold?

A

The minimum amount of stimulus needed to be consciously detected 50% of the time.

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9
Q

What is Difference Threshold?

A

The minimal difference in stimulus strength that is detectable 50% of the time.

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10
Q

What is Sensory Adaptation?

A

When a constant stimulus is presented, sensory receptors become less sensitive and fire less frequently.

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11
Q

What is Gate Control Theory?

A

the experience of pain depends on whether the message passes the “gatekeeper” in the spinal cord.

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12
Q

What is Phantom Limb Pain?

A

Sensations, including pain, in a missing limb due to conflicting nerve signals.

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13
Q

What is the Pathway of Light in Vision?

A

Light -> Cornea -> Pupil -> Lens -> Retina -> Optic Nerve.

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14
Q

Nearsightedness

A

image reaches focus infront of the retina (can see near objects

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15
Q

Farsightedness:

A

image reaches focus behindthe retina (can see far away objects)

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16
Q

what is the Trichromatic Theory of Color?

A

Three color-sensitive systems: red, green, and blue; mixing them produces full color perception.

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17
Q

What is the Opponent-Process Theory?

A

Color perception is based on opposing color pairs: blue/yellow, red/green, black/white.

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18
Q

What is the Pathway of Sound in Hearing?

A

Ear Drum -> Hammer -> Anvil -> Stirrup -> Cochlea.

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19
Q

What is Olfaction?

A

The sense of smell; information is processed in the olfactory bulb, bypassing the thalamus.

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20
Q

What is the Purpose of Taste (Gustation)?

A

Helps detect safe vs. harmful foods; taste receptors transduce information to the brain.

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21
Q

What are Gestalt Principles?

A

The brain organizes sensory input into whole patterns, such as figure-ground perception.

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22
Q

What is Bottom-Up Processing?

A

Sensory data is sent up to the brain for higher-level analysis.

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23
Q

What is Top-Down Processing?

A

Perception is driven by expectations and prior knowledge.

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24
Q

What is Consciousness?

A

Awareness of internal events and external environment.

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25
What is Selective Attention?
the ability to focus awareness on specific stimuli while ignoring others.
26
Alternate State of Consciousness
any mental state different from ordinary wakingconsciousnesso Examples: sleep, dreaming, psychoactive drug use, hypnosis, etc...
27
What is Circadian Rhythm?
The 24-hour biological clock regulating bodily functions.
28
dreams occur when?
REM stage of sleep
29
What are the Stages of Sleep?
Stage 1: Theta Waves.Stage 2: Sleep Spindles.Stage 3: Delta Waves.Stage 4: Slower Delta Waves.REM: Low voltage, high-frequency activity (dreaming).
30
Adaptation/Protection Theory
conserve energy and protection frompredators
31
Repair/Restoration Theory
recuperate from daily activities
32
Insomnia
Trouble falling/staying asleep.
33
Sleep Apnea
Interrupted breathing during sleep.
34
Nightmares
Disruptive bad dreams in REM.
35
Sleep Terrors
Panic episodes in non-REM sleep.
36
What are Psychoactive Drugs?
Substances altering consciousness, perception, or behavior.
37
Agonist drugs
Mimics/enhances neurotransmitter effects.
38
Antagonist drugs
Inhibits/blocks neurotransmitter activity.
39
Drug Abuse
drug taking that causes emotional or physical harm to self or others
40
Addiction
body requires drug to function; the outcome of tolerance anddependence
41
Depressants Reduce arousal (e.g.
alcohol).
42
Stimulants Increase arousal (e.g.
caffeine).
43
Opiates Treat pain (e.g.
morphine).
44
Hallucinogens Alter perception (e.g.
LSD).
45
What is the Effect of Sleep Deprivation? Impaired cognition
mood swings
46
What is Motivation? Factors that activate
direct
47
What is Emotion? A subjective feeling involving arousal
cognition
48
What is Instinct Theory? Unlearned behaviors driven by evolutionary survival needs.
49
What is Drive-Reduction Theory? Motivation arises from physiological needs that seek balance (homeostasis).
50
What is the Optimal-Arousal Theory? People seek an ideal level of arousal for performance.
51
What is Maslow’s Hierarchy of Needs?
A model where basic physiological needs must be met before higher needs like self-actualization.
52
What is Incentive Theory?
Motivation results from external stimuli that “pull” an organism in certain directions. ## Footnote Example: promotion, getting paid, personal goals
53
What are Cognitive Theories of motivation?
Motivation is affected by attributions and expectations.
54
What are Attributions?
The way we think about events and the actions of ourselves and others. ## Footnote Example: I made a good grade on the test because I studied hard. Example: I made a good grade because I got lucky; the test was easy.
55
What are Expectancies?
What we think or assume will happen. ## Footnote Example: I work overtime without pay because I anticipate a promotion. Example: I leave work early because I do not think it will negatively affect me.
56
What is Obesity?
Having a body mass index (BMI) of 30 or above, based on height and weight.
57
What is Anorexia Nervosa?
An eating disorder characterized by severe loss of weight resulting from self-imposed starvation and obsessive fear of obesity.
58
What is Bulimia Nervosa?
An eating disorder characterized by recurrent episodes of consuming large quantities of food (bingeing), followed by purging: self-induced vomiting, extreme exercise, laxative use, and other medication. ## Footnote Vomiting damages teeth, throat, stomach; leads to
59
What is the Sexual Response Cycle?
Masters and Johnson’s description of the four-stage bodily response to sexual arousal, which consists of excitement, plateau, orgasm, and resolution.
60
What is Sexual Orientation?
A primary erotic attraction toward members of the same sex (homosexual, gay, lesbian), both sexes (bisexual), or the other sex (heterosexual).
61
Sexual Prejudice
a negative attitudetoward an individual because of his or hersexual orientation. Formerly “homophobia”
62
James-Lange
the subjectiveexperience of emotion resultsfrom physiological changesrather than being its cause (“Ifeel sad because I’m crying”
63
Cannon-Bard
emotions andphysiological changes occursimultaneously (“I’m crying andfeel sad at the same time”
64
Schachter and Singer’s Two-Factor Theory
emotiondepends on two factors –physiological arousal andcognitive labeling (wedding vs.funeral crying)