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80 Cards in this Set
- Front
- Back
zygote
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fertilized egg with 100 cells
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embyro
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2 week old zygote
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fetus
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9 week old embryo
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teratogens
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chemicals that could harm the fetus, but placenta protects the fetus from the chemicals
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Schemas
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mental molds to organize ideas
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assimilation
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processing of fitting objects into existing schemas
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accommodation
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creating new schemas for new objects
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sensorimotor
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0-2
mental activity confined by schemas |
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object permanence
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end of sensorimotor stage
when child recognizes objects |
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preoperational
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2-7
begin to understand things using symbols make intuitive guesses egocentric don not understand conservation |
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concrete operational
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7-12
mentally transform info cannot think abstractly |
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formal operational
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12+
abstract thinking |
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adolescent egocentrism
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everyone is looking at me
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personal fable
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im unique
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parent infant attachment
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deep, affectionate, close, and enduring relationship between parent and child
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secure attachment
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infant wants to be with parent but also wants to explore
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insecure attachment
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avoid-ant, ambivalent, disorganized
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avoidant
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avoid or ignore parent
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ambivalent
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upset when parent leaves, angry when they return
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disorganized
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inconsistent behavior
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adolescence
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life between childhood and adulthood
puberty |
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frontal cortex
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slow developing to limbic system
causes occasional poor teen judgement |
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Kohlberg's stages of moral development
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preconventional, conventional, postconventional
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preconventional
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moral choices are selfish
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conventional
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choices based on following the rules
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postconventional
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judgments based on personal standards
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limitations of kohlberg's stages
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cross-cultural studies, gender differences in moral thinking
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adulthood
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peak in 20's
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recognition memory
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multiple choice, can recognize if seen
does not declines with age |
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recall memory
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essay, have to think of it without assistance
declines with age |
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fluid intelligence
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ability to reason speedily
declines with age |
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crystalized intelligence
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accumulation of knowledge and skills
does not decline with age |
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sensations
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detect physical energy(stimulus) from environment and convert to neural signals
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perception
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select, organize, and interpret sensations
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bottom up processing
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analysis of sensation
low level just seeing the basics |
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top down processing
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information processing
high level construct perceptions |
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vision
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wavelength -- hue, color
amplitude -- intensity, brightness |
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pupil
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adjustable opening where light enters the eye
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iris
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colored muscle surrounding pupil
responds to light intensity or internal states |
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lens
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focuses light into the retina
accommodation: lens changing shape to accommodate viewing |
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retina
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layer of photo-sensative cells in the back surface of eye
transduces photons |
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Fovea
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central area of retina contains only cones
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cones
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function in bright lighting
detection of detail |
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rods
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detect black, white, grey
responsible for peripheral vision in dark |
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process
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1. light reaches rods and cones
2. chemical reactions activate bipolar cells 3. bipolar cells activate ganglion cells 4. ganglion forms optic nerve |
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ganglion
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information form thousands of visual receptors
sees only the receptive field |
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optic nerve
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carries neural impulses from eye to brain
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blind spot
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where optic nerve leaves the eye because there are no receptor cells located there
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parellel processing
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processing of several aspects of the stimulus simultaneously
the brain divides a visual scene into subdivisions |
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feature detection
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nerve cells respond to specific features (edges, angles, and movement)
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shape detection
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special combinations of temporal lobe activity occurs as people look at shoes, faces, chairs, houses
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tri chromatic theory
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any color that produces by mixing pure versions of blue green or red light in different amounts
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3 different types of cones
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red
green blue |
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color blindness
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genetic disorder in which people are blind to green or red colors
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problem with tri chromatic
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cannot explain some quirks
red-green color blind people can still see yellow |
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opponent-process theory
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3 pairs: red-green, blue-yellow, black-white
complimentary colors |
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loudness
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amplitude or height of the sound wave
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pitch
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frequency of sound wave
determines how high or low a tone is |
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Place theory
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hair cells at a particular place on the basilar membrane respond to particular frequencies of sound
describes how we hear high frequencies not low frequencies |
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frequency-matching theory
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firing rate of an auditory nerve matches a sound waves frequency
describes how we hear low frequencies |
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smell (olfaction)
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it goes straight to the brain, not through the thalamus
axons from neurons in the nose have synapse in the olfactory bulb plentiful in the amygdala |
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taste (gustation)
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receptors concentrated on tongue
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figure ground organization
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figure -part of visual field that has measure (object)
ground - visual field with less meaning (background) |
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gestalts law of organization
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the whole greater than the sum...because we add meaning
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gestalts laws
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proximity: group things together that are close
similarity: group thing because they look alike |
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depth perception
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the projection of our retina
depth cues |
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monocular
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one eye
picture of street |
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monocular (interposition)
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one thing is covered up by another thing
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monocular (relative size)
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size difference in people
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monocular (height in visual field)
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where object is (front or back)
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monocular (textural gradient)
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texture fades towards top of picture
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monocular (linear perspective)
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lines converge in the middle
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monocular (reduced clarity)
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farther back, less clear
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binocular
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2 eyes
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accommodation
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information about the muscle activity involved in accommodation serves as one cue
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convergence
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depth cue resulting form rotation of the eyes so the image is projected on each retina
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binocular disparity
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depth cue based on the difference between the retina images received by each eye
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optical flow
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constantly changing image on the retina when in motion
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looming
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rapid expansion in the size of an image so that it fills the retina (baseball being thrown at your face)
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stroboscopic motion
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tendency to perceive movement when a series of still images appear, one at a time, in rapid succession
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