Lifespan Flashcards
Lifespan: Early Influences
genotype
Genotype refers to a person’s genetic make-up
Lifespan: Early Influences
phenotype
phenotype refers to observable characteristics, which are due to a combination of genetic and environmental factors.
Lifespan: Early Influences
Bronfenbrenner’s ecological model
Bronfenbrenner described development as involving interactions between the individual and his/her context or environment, and his ecological model describes the context in terms of five environmental systems or levels:
- microsystem
- mesosystem
- exosystem
- macrosystem
- chronosystem
Lifespan: Early Influences
microsystem
Bronfenbrenner’s ecological model
immediate environment: home, school, neighborhood
Lifespan: Early Influences
exosystem
Bronfenbrenner’s ecological model
elements that affect the child’s environment indirectly- parent’s workplace, school board, local industry, media
Lifespan: Early Influences
chronosystem
Bronfenbrenner’s ecological model
environmental events that occur over an individual’s lifespan, impact dependent on life stage
Lifespan: Early Influences
macrosystem
Bronfenbrenner’s ecological model
cultural beliefs and practices
Lifespan: Early Influences
mesosystem
Bronfenbrenner’s ecological model
interactions between components of the microsystem - influence of family on child’s behavior at school
Lifespan: Early Influences
Rutter’s indicators
Rutter argued that the greater the number of risk factors a baby is exposed to, the greater the risk for negative outcomes.
Lifespan: Early Influences
Rutters family factors
- severe marital discord
- parental criminality
- maternal psychopathology
Lifespan: Early Influences
Rutters environmental factors
- low socioeconomic status
- overcrowding or large family size
- placement of a child outside the home
Lifespan: Early Influences
reaction range + canalization
- reaction range - genetic predilection for traits to be expressed by environmental factors
- canalization - genetic situations that restrict phenotype to a small number of outcomes
Lifespan: Early Influences
Genotype-Environment Correlation
three types
- passive genotype environment correlation
- evocative genotype environment correlation
- active genotype environment correlation
Lifespan: Early Influences
passive genotype environment correlation
Genotype-Environment Correlation
genotype predisposes toward particular traits, parents provide children with environments that encourage these traits
athletic parents putting their kids in sports
Lifespan: Early Influences
evocative genotype environment correlation
Genotype-Environment Correlation
when child’s genotype evokes reactions from parents and others that reinforce
social kids doing well in preschool
Lifespan: Early Influences
active genotype environment correlation
Genotype-Environment Correlation
niche-picking, children actively seeking out activities that fit with their predisposition
Lifespan: Early Influences
epigenesis
genetic and environmental influences are bidirectional and ongoing
Lifespan: Early Influences
critical period
A critical period is a time during which an organism is especially susceptible to positive and negative environmental influences.
Lifespan: Early Influences
sensitive period
A sensitive period is more flexible than a critical period and is not limited to a specific chronological age.
Lifespan: Early Influences
critical vs. sensitive periods
Some aspects of human development may depend on critical periods, but, for many human characteristics and behaviors, sensitive periods are probably more applicable.
Lifespan: Early Influences
stages of prenatal development
- germinal stage
- embryonic stage
- fetal stage
Lifespan: Early Influences
germinal stage
- first two weeks
- fertilized ovum is a zygote
Lifespan: Early Influences
embryonic stage
third week through eighth week
Lifespan: Early Influences
fetal stage
9th week to birth
Lifespan: Early Influences
chromosomes/autosomes
- first 22 pairs are called autosomes, 23rd pair called sex chromosomes
- diseases based on the first 22 are called autosomal disorders, 23rd are called “sex linked”
Lifespan: Early Influences
female chromosomes
XX
Lifespan: Early Influences
male chromosomes
XY
Lifespan: Early Influences
Klinefelter chromosomes
XXY
Lifespan: Early Influences
Turner syndrome chromosomes
X
Lifespan: Early Influences
brown eyes, dark hair, farsightedness
based on a single dominant gene
Lifespan: Early Influences
green, hazel, blue eyes, blond hair, nearsightedness
based on a pair of recessive genes
Lifespan: Early Influences
down syndrome
extra chromosome 21
Lifespan: Early Influences
chromosomal deletion
- when part of a chromosome is missing
- Prader Willi syndrome
Lifespan: Early Influences
chromosome translocation
transfer of a chromosome segment to another chromosome (some cases of down syndrome)
Lifespan: Early Influences
chromosome inversion
breaks in two places and the segment formed the breaks inverts and reattaches
no affect on phenotype
Lifespan: Early Influences
fetal alcohol spectrum disorder (FASD)
encompasses a range of conditions that involve largely irreversible physical, behavioral, and/or cognitive abnormalities.
Lifespan: Early Influences
Fetal alcohol syndrome (FAS)
most severe form of FASD and is characterized by
facial anomalies
retarded physical growth
heart, kidney, and liver defects
vision and hearing impairments
cognitive deficits
behavioral problems.
Lifespan: Early Influences
Alcohol-related neurodevelopmental disorder (ARND)
is characterized by cognitive deficits and behavioral problems without prominent facial anomalies, retarded physical growth, or physical defects,
Lifespan: Early Influences
alcohol-related birth defects (ARBD)
involves physical defects without other prominent symptoms.
Lifespan: Early Influences
cocaine effect on infant
- high risk for SIDS, tremors, exaggerated startle, small head, high pitched cry
Lifespan: Early Influences
nicotine effect on infant
- fetal death and stillbirth
- low birthweight, SIDS, and respiratory diseases
- emotional and social disturbances and cognitive deficits
Lifespan: Early Influences
lead effect on infant
- low birthweight
- intellectual disability
Lifespan: Early Influences
rubella effect on infant
heart defects, blindness, deafness, intellectual disability
Lifespan: Early Influences
Cytomegalovirus
CMV, a type of Herpes
- 20-30% die perinatally
- low birth weight, intellectual disability, visual impairments
Lifespan: Early Influences
HIV/AIDs effect on infant
- 20-30% likelihood of transferring the virus
- 50% of infants survive the first year
- slowed growth and development, increased susceptibility to bacterial infections
Lifespan: Early Influences
malnutrition effect on infant
- suprresion of immune system, intellectual disability
- especially bad in the third trimester, reduced number of neurons, problems with myelination
spina bifida from lack of folic acid
Lifespan: Early Influences
stress effect on infant
low birthweight, hyperactive and irritable
Lifespan: Early Influences
SGA
small for gestational age, below the 10th percentile for gestational age
Lifespan: Early Influences
perinatal complications
anoxia, herpes simplex 2
- anoxia- prolonged oxygen shortage
- herpes simplex 2- can lead to death, brain damage, blindness- C-sections used
Lifespan: Physical Development
babinski
toes fan out when soles are tickled
Lifespan: Physical Development
moro
startle reflex- flings arms and legs outward
Lifespan: Physical Development
rooting/stepping
rooting- turning head in direction of touch
Lifespan: Physical Development
habituation
in infants
infants response to a stimulus decreases when a stimulus is repeatedly presented
Lifespan: Physical Development
dishabituation
infant’s responsivity increases following a change in stimulus
Lifespan: Physical Development
vision depth cue development
- kinetic
- binocular
- pictorial
Lifespan: Physical Development
auditory localization
in infants
evident shortly after birth, disappears for 2-4mo, comes back
Lifespan: Physical Development
pain sensitivity
in infants
- higher if full term infants undergo painful medical procedures
- lower if pre-term infants undergo medical procedures
Lifespan: Physical Development
1-3 mo
milestones
- raise chin from ground
- can play with hands and fingers, bring fingers to mouth
Lifespan: Physical Development
4-6 mo
milestones
- rolls from abdomen to back
- sit on lap
- first teeth appear
Lifespan: Physical Development
7-9 mo
milestones
- better coordination
- crawling
- pull to standing
Lifespan: Physical Development
13-15 mo
milestones
- stands alone and walks with help
- first steps at 12 mo
Lifespan: Physical Development
16-24 mo
milestones
- runs clumsily
- can use spoon
- turn book pages
- 50% use toilet during day
Lifespan: Physical Development
25-48 mo
milestones
- jumps with both feet
- good hand-finger coordination
- self-dressing
- handedness by 48mo
Lifespan: Physical Development
gender differences in motor development
- girls are more agile, flexible, and balanced
- boys are better in strength and gross-motor movements
Lifespan: Physical Development
early adolescence
both pros and cons for boys, only cons for girls
Lifespan: Physical Development
visual changes in adulthood
After age 65, most individuals experience visual changes that interfere with reading, driving, and other aspects of daily life. In addition to presbyopia (loss of near vision), common changes include loss of visual acuity, reduced perception of depth and color, increased light sensitivity, and deficits in visual search, dynamic vision (perceiving the details of moving objects), and speed in processing what is seen.
Lifespan: Physical Development
adult hearing loss
- starts around age 40, significant loss after 75
- decreasing ability to perceive high-frequency sounds
- earlier onset in men
Lifespan: Physical Development
reaction time with age
- reaction time incrases,
- slowing of motor and mental abilities
Lifespan: Physical Development
chronic illness in children
- best mental health prognosis in cases of low illness severity
- children need developmentally appopriate information about their illness
Lifespan: Physical Development
adolescent ATOD use
alcohol tobacco other drug
- alcohol
- illicit drugs (marijuana highest)
- tobacco
Lifespan: Physical Development
sexual activity in late adulthood
- inactivity due to physical health problems
- satisfaction high, men most satisfied
Lifespan: Cognitive Development
Piaget’s constructivism
terms
adaptation
assimilation
accomodation
Lifespan: Cognitive Development
adaptation
Piaget’s constructivism
AAA
resolution of discrepancy between schema and reality, contains two processes: assimilation and adaptation
Lifespan: Cognitive Development
assimilation
Piaget’s constructivism
incorporation of new knowledge into existing schemas
Lifespan: Cognitive Development
accomodation
Piaget’s constructivism
modification of existing schemas to incorporate new knowledge
Lifespan: Cognitive Development
sensorimotor stage
birth to 2 years
Piaget’s Stages
learns about objects and other people through the sensory information they provide and the actions that can be performed on them.
accomplishment: object permanence
Lifespan: Cognitive Development
Piaget’s Stages
According to Piaget, cognitive development involves four universal and invariant stages:
- sensorimotor
- preoperational
- concrete
- formal operational
Lifespan: Cognitive Development
preoperational accomplishment
2-7 years
Piaget’s Stages
A key accomplishment of the preoperational stage (ages 2 to 7) is the development of the symbolic (semiotic) function, which is an extension of representational thought and permits the child to learn through the use of language, mental images, and other symbols.
Lifespan: Cognitive Development
preoperational limitations
2-7
Piaget’s Stages
Limitations of this stage include precausal reasoning and egocentrism.
precausal reasoning- incomplete understanding of cause and effect
also magical thinking
Lifespan: Cognitive Development
concrete operational stage
ages 7 to 11
Piaget’s Stages
are capable of mental operations, which are logical rules for transforming and manipulating information.
As a result, they are able to classify in more sophisticated ways, seriate, understand part-whole relationships in relational terms, and conserve
Lifespan: Cognitive Development
Formal Operational Stage
age 11+
Piaget’s Stages
able to think abstractly and is capable of hypothetico-deductive reasoning.
adolescent egocentrism: personal fable and imaginary audience
Lifespan: Cognitive Development
information processing theory
Non-Piagetians
focus on development within specific cognitive domains instead of identifying global principals
Lifespan: Cognitive Development
Vygotsky’s sociocultural theory
first interpersonal (when the child interacts with an adult or other teacher) and then intrapersonal (when the child internalizes what he/she has learned).
Lifespan: Cognitive Development
zone of proximal development
+ scaffolding
Vygotsky’s sociocultural theory
the discrepancy between a child’s current developmental level (the level at which the child can function independently) and the level of development that is just beyond his or her current level but can be reached when an adult or more experienced peer provides appropriate scaffolding (instruction, assistance, and support).
Lifespan: Cognitive Development
reciprocal teaching method
Brown & Palinscar
children learning through social interaction, applied to reading instruction
Lifespan: Cognitive Development
Theory of Mind
Lewis & Mitchell
“ability to make inferences about another’s representational states and to predict behavior accordingly”