Exam (elaborations)
PSYCH 101 Exam 2 Questions And Answers Latest Update
- Course
- Psychology 101
- Institution
- Stanford University
PSYCH 101 Exam 2 Questions And Answers Latest Update
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PSYCH 101 Exam 2 Questions And AnswersLatest Update
Sensation - ANS the way that our bodies sense stimuli
perception - ANS how our brains process the stimuli sensed by our body
top-down processing - ANS information processing guided by a higher-level mental
processes
bottom-up processing - ANS analysis that begins with the sensory receptors
absolute threshold - ANS the minimum stimulation necessary for detection 50% of
the time
difference threshold - ANS the minimum difference a person can detect between
any two stimuli 50% of the time
Weber's Law - ANS for their difference to be perceptible, two stimuli must differ by
a constant proportion- not a constant amount.
Sensory Adaptation - ANS our diminishing sensitivity to an unchanging stimulus
,wavelength - ANS the distance from one wave peak to the next; determines hue
intensity - ANS amount of energy in light waves; determined by a waves amplitude
(height); influences brightness
accommodation - ANS focuses by changing its curvature
blind spot - ANS where the optic nerve lease the eye there are no receptor cells
Cones - ANS cluster around the fovea (retina's area of central focus); each has its
own bipolar cell; preserves precise information; can see color; can't function in
dim light
Rods - ANS black and white vision; capable in dim light
Young-Helmholtz trichromatic theory - ANS retina has three types of color
receptors, each especially sensitive to red, green, and blue
Opponent-process theory - ANS as visual information leaves the receptor cells, we
analyze it in terms of the opponent colors
What are the opponent colors? - ANS red and green, blue and yellow, black and
white
, Gate-Control Theory - ANS spinal cord; small nerve fibers conduct most pain
signals, larger fibers conduct most other sensory signals; spinal cord contains a
neurological "gate" when tissue is injured, the small fibers activate and open the
gate and you feel pain
Taste - ANS sweet salty sour bitter umami
Sensory Interaction - ANS one sense may influence another; when smell is blocked
foods don't taste the same
gestalt - ANS meaning "form" or a "whole": when given a cluster of sensations
people tend to organize them into one of these
figure-ground - ANS we always organize the stimulus into a figure seen against a
ground
Grouping - ANS categorizing stimuli by:
continuity - ANS smooth continuous patterns
closure - ANS fill in gaps to create a complete whole object
proximity - ANS grouping of items that are close to each other
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