Child Test 3 Review Flashcards
When do infants cry more often?
most infants cry late in the day
directionality
the principle that describes growth as having intrinsic direction
cephalocaudal
directional growth that proceeds from the top ofteh body to the bottom; literraly, head to tail
proximodistal
directionality that begins near the cneter of the vody and proceeds toward the extremities.
independence of systems
the principle that different body systems grow on different schedules
canalization
The tendency for growth, if disturbed or deflected, to return to an expected path
epiphyses
the growth cneters of long bones; they produce cartilage cells, and as these harden, the bone grows in size
Skeletal age
an assesment of phsycial maturity that depends on examination of the size and appearance of the epiphyses.
primary teeth
the first teeth to appear, usually in the latter half of the 1st year; often called baby teeth.
neurotransmitters
chemicals that move across synapses, allowing communication between nurons
apoptosis
the programmed process of cell death undergone by some neurons in reposne to a relative lack of environmental input
synaptic pruning
the death over time of many synapses that are not stimulated by input from the environment
glial ells
fatty cells resopnsible for myelinating the neurons in the brain and providing other support functions to neurons.
cerebral cortex
the 2 large, outer hemispheres that make up the layer of the brain; responsible for much perception, thought, and planning.
lateralization
separation of functions in the two hemispheres of the cerbral cortex
plasticity
the ability of the brain to be changed by experience
experience-expectant plasticity
the brain’s ability to create circuits based on typical human experiences, such as hearing voices or seeing faces
experience-dependent plasticity
the brain’s ability to create circuits based on atypical or idiosyncratic forms of experience, such as extensive training in music or sports
tripod position
an early position for sitting that invovles the hands oon the floor in front of outstreched legs, used by infants to maintain belance before they can sit indpendently.
visual cliff
an experimental apparatus used to study infant reactions to visual cues for a drop-off, or cliff; it provides visual clues of a 3-foot drop-off, but because the drop-off is covered in a sheet of thick glass, it is in reality a flat surface.
cruising
moving around on two feet while holding onto furniture for support; a mode of movement used by infants before they learn to walk independently
haptic discrimination
ability to tell objects apart using touch @ 3 months
visual acuity
clarity of vision; the ability to distnguish fine details
object ssegration
the ability to identify objects in the world–to tell where one object begins and another ends
phoneme
the smallest unit of sound that carries meaning in a language
perceptual tunig
the process of becoming less sensitive over time to stimuli that are not in the typical envionrment; also called perceptual narowing
kwashiorkor
a condition that resuslts from extreme starvation; symptoms include swollen bellief and feet, hair loss, andl ack of energy
marasmus
a condition that reuslts from extreme starvation, in which the body becomes extremely thin and fragile
sudden ifnant death syndrom
the sudden unexplained death of an otherwise healthy infant
colic
a condition in which infants who are otherwise normal show excessive cryin; usually defined as cryinig for at least 3 hours per day, for at least 3 days per week, for at least 3 weeks.
otitis media
ear infection
cognitive schema
in piaget’s theory, a cognitive structure or cognitive representation
equilibration
In Piaget’s theory, the process that maintains blance in cognitive structures via the joint operation of accommodation and assmilation
primary circular reaction
In Piaget’s theory, the second substage of sensorimot development, in which infants extend reflexive behavior to acquire new bahavior patterns
Secondary circular reaction
In Piaget’s theory, the third substage of sensorimotos development, in which infants begin to control events in the world outside their bodies.
tertiary circular recation
In Piaget’s theory, the fifth substage of sensorimoto development, in which infants invent new behaviors by trial and error, in order to achieve their goals
Deferred Imitation
imitation that occurs after a delay; of particular interest to Piaget because it apparently depends on the existence of symbolic representation of the bahavior being imitated
object permanence
the belief that objects continue to exist in time and space even if we cannot see, hear, or touch them
violation-of-expecation paradigm
Behavior pattern in which infants react with surprise to unexpected evvents
information processing theory
an approach to cognitive development that emphasizes the flow of information through the mind, using the metaphor of information movign through a computer
core knowledge theory
An approach to the study of cognitive development that suggests infants are bron with some understanding about essential areas, such as language, space, objects, and numbers
sociocultural theory
a perspective on human development that emphasizes social and cultural factors in development
Join attention
the phenomenon of two or more people directing their attention to the same obejct or person; in communication, when two people pay attention to the same topics
normative development
development that is considered typical or expected within a particualr cultural group\
intelligence quotient (iq)
the result of a test intended to measure intellectual skills; common intelligence tests are scored so that a score of 1- is average, scores over 100 indicate above-average intelligence, and scores below 100 indicate below-average intelligence
developmental quotient (DQ)
a score on a test of infant intelligence, calcualted in the same way as an intelligence quotient score
langauge acquisiton device
LAD; In Chomskys’ theory, the hypothetical innate menta structure that allows language learning to take palce in all humans
universal grammar
In chomsky’s theory of langauge developmet, the idea that use of language requried knowlefge of abstract rules nad that these rules are common to all languages
social interactionist approach to langguage developent
the view that language develops as a social skill for use in communication and social interaction
Connectionist view of language development
The theory that linguistic development results from strngthening of existing networks of neural connections in the brain; also known as the neural network view.
Statistical learnig
In early langauge development, learning the likelihood of one word or sound being followed by another word or sound, by noting the frequencies with which various combinations of sounds and wrods actually occur in the langauge
cooing
vocal behavior of infnats that invovles the rpetitoin of vowel sounds, such as /aaaaaa/, /ooooooooo/, and /eeeeee/.
Babbling
Vocal behavior of infants that invovles the repetition of consonant-vowal combinations, such as /bababa/ and /dededededede/.
noun bias
In early learning of Enlgihs, children’s tnedency to learn many nouns among their earliest words; this is not a universla tendency and does not occur in langauges that put more emphasis on verbs, such as Japanese or Mandaring Chinese.
Referntial pattern
In early language deelopment, a pattern of learning that emphasizes the names for objects and contains many nouns