Exam 2 Flashcards
what is human development?
age-related physical, intellectual, and social changes that occur throughout the lifespan
what is the approximate age of the prenatal stage?
conception to birth
what approximate age is the infancy stage?
birth to 12 months
what approximate ages are early and middle childhood?
- early = 12 months - 6 years
- middle = 6-12 years
what approximate age is adolescence?
12-20 years
what approximate ages are young, middle, and later adulthood?
- young = 20-45 years
- middle = 45-60 years
- later = 60 years - death
what are the stages of development from conception to birth?
- conception: sperm + egg = zygote
- 2 weeks: zygote implanted into uterine wall
- 2 weeks - 2 months: embryo
- 2 months to birth: fetus
how long is a full-term pregnancy?
38-42 weeks (twins not past ~37 weeks)
what happens during the germinal period?
conception to implantation (most fertilized eggs don’t survive this stage)
what happens during the embryonic period?
- body shape develops and sexual differentiation begins
- stage of greatest risk of environmental harm
what happens during the fetal period?
final development of organs and muscular-skeletal structure
what parts of the mother’s experience can impact the baby?
- illness
- substance use
- exposure to teratogens
- mental health
how do babies come into the world?
vaginal birth or C-section
what is the grasping reflex?
baby grips something tightly when something touches the baby’s palm (helps them hold onto mom)
what is the rooting reflex?
baby turns head and opens mouth with side of baby’s face is touched (better position for feeding)
what is the sucking reflex?
baby sucks when something touches the roof of the baby’s mouth (enables breast/bottle feeding)
what influences an individual’s development?
genetic makeup and environment
how do nervous systems mature?
- down and out
- head down and center out
what is a growth spurt?
rapid increase in height and weight
what is puberty?
period of changes in which human body reaches sexual maturity and is capable of producing offspring
what changes occur during puberty?
- development/increase in body hair
- body odor
- enlargement/maturation of sex organs
- menarche (first period) (women)
- ability to ejaculate (men)
- voice changes
- increase in muscle mass (men)
- gaining of fat (women)
what average age do boys and girls go through puberty?
- girls = 11
- boys = 13
at what age is the prefrontal cortex fully developed?
25 years old
what are the functions of the prefrontal cortex?
decision-making, inhibition, processing speed
at what age does the human body reach peak strength?
20s
what is menopause?
- when the menstrual cycle slows and stops
- usually around 50
what effect do later-life hormone changes have on men?
- erectile dysfunction (testosterone)
- more emotional
what is dementia?
decline in cognitive abilities
what is Alzheimer’s Disease?
serious brain degeneration disease resulting in significant dementia process
what are aspects of infants’ thoughts and feelings?
- drawn to female faces and novel things
- able to learn based on rewards
- bored with repeated stimuli (habituation)
- sensitive to pain, smell, taste, and touch
what was Piaget’s theory of cognitive development?
cognitive development is guided by assimilation and accommodation
what is assimilation (Piaget)?
- process through which we fit (assimilate) new experiences into our existing schemata
- fitting new info into existing categories
what is accommodation (Piaget)?
- process through which we change/modify existing schemata to accommodate new experiences
- formation of new categories
what are Piaget’s emphasized stages of cognitive development?
- step-wise process in which you can’t move onto next stage without conquering current one
1. sensorimotor
2. preoperational
3. concrete operational
4. formal operational
what is object permanence?
ability to recognize that an object still exists when it’s no longer in sight
what is the principle of conservation?
physical properties remain the same after superficial change (ex: amount of water doesn’t change even if it’s placed into a smaller cup)
what is egocentrism?
tendency to view the world only from your unique perspective
what is the theory of mind?
ability to understand what others are thinking/their perspective
what is Vygotsky’s zone of proximal learning theory?
- 3 parts:
1. what you can do independently
2. zone of proximal development - what you can do if guided
3. what you can’t do even with guidance
what is morality?
ability to distinguish between appropriate and inappropriate actions
what are the three stages of moral development according to Kohlberg?
- preconventional - external consequences (avoiding punishment + self-interest)
- conventional - internalized rules (conformity + authority/law and order)
- post-conventional - abstract reasoning (social contract + principle)
what is the Heinz Dilemma (Kohlberg)?
having exhausted every other possibility, should Heinz steal an expensive drug that offers the only hope of saving his dying wife?
what is imprinting?
a sensitive period during which young animals become strongly attached to a nearby adult
what is the Harlow monkey experiment?
- baby monkey’s would choose to cling to cloth “mother” instead of wire one even though wire frame was source of food
- emphasized importance of contact comfort
what is an attachment?
a strong emotional connection between people that persists over time and across circumstance
what are the 4 types of attachments?
- secure
- resistant/ambivalent
- avoidant
- disorganized
how did each attachment respond in the strange situation test?
- secure - upset when parent left and then back to normal when they return
- resistant - upset when parent left and mad/upset with them when they return
- avoidant - child unbothered by parent’s departure and return
- disorganized - inconsistent responses
what is Erickson’s theory of identity development?
- child creates identity as they learn more about the world
- age-related psychosocial challenges across lifespan
- each challenge provides skills/attitudes necessary to successfully facing next challenge
- you don’t need to get through each crisis to move on, but unresolved crisis will cause problems later
what are the eight stages of psychosocial development?
- infancy - trust vs. mistrust
- toddler - autonomy vs. shame/doubt
- preschool - initiative vs. guilt
- childhood - industry vs. inferiority
- adolescence - identity vs. role confusion
- young adulthood - intimacy vs. isolation
- middle adulthood - generativity vs. stagnation
- old age - integrity vs. despair
what 3 changes cause adolescents to question who they are?
- changed physical appearance
- increased cognitive abilities
- heightened societal pressure
what is gender identity?
one’s sense of being male/female/non-binary
what are gender roles?
behavior typically associated with being male/female
what are the two influences on gender identity develpment?
- biology - hormones lead to changes in brain structure/function
- gender socialization - what society and culture tells us about gender
what is the consequence of having more intersectional identities?
longer/more complicated process to accept the identities
when do the body and mind start deteriorating?
around 50 years old
what are the 5 stages of facing death?
- denial
- anger
- bargaining
- depression
- acceptance
what is learning?
relatively permanent change in behavior, or potential behavior, that results from experience
what is an orienting response?
inborn tendency to notice and respond to novel or surprising events
what is habituation?
- a decline in responsiveness to a stimulus that is presented repeatedly
- typically occurs if a stimulus is mild/moderate
what is sensitization?
- increased responsiveness to an event that has been repeated
- typically occurs if a stimulus is intense/punishing/irritating
what is classical conditioning?
- developed by Ivan Pavlov
- set of procedures used to investigate how organisms learn about signaling properties of events
- learning relations between events that occur outside of one’s control
what are the 3 rules of classical conditioning?
- conditioned stimulus should be presented first
- unconditioned stimulus should be presented quickly after conditioned stimulus
- conditioned stimulus must provide new info about unconditioned stimulus
what is blocking (classical conditioning)?
2nd stimulus can distract from conditioned stimulus
what is an unconditioned stimulus?
a stimulus that automatically leads to an observable response prior to any training
what is a conditioned stimulus?
- the neutral stimulus that is paired with the unconditioned stimulus
- becomes a signal of the unconditioned stimulus
what is a conditioned response?
the acquired response that is produced by the conditioned stimulus
what is acquisition?
gradual formation of an association between the conditioned and unconditioned stimuli
what is extinction?
a process in which the conditioned response is weakened when the conditioned stimulus is repeated without the unconditioned stimulus
what is spontaneous recovery?
a process in which a previously extinguished conditioned response reemerges after the presentation of conditioned stimulus
what is operant (instrumental) conditioning?
a procedure for studying how organisms learn about the consequences of their own voluntary actions
what is the law of effect?
- if a response in a particular situation followed by satisfying/pleasant consequence, connection between response and that situation is strengthened
- if response in a particular situation is followed by an unsatisfying/unpleasant consequence, connection will be weakened
what is reinforcement?
response consequences that increase likelihood of responding in a similar manner again
what is positive reinforcement?
event that, when presented after a response, increases likelihood of response occuring again
what is negative reinforcement?
event that, when removed after a response, increases likelihood of response occuring again
what is punishment?
consequences that decrease the likelihood of responding in a similar manner again
what is positive punishment?
event that, when presented after response, lowers likelihood of response occuring again (additional punishment)
what is negative punishment
event that, when removed after a response, lowers likelihood of response occuring again (something taken away as punishment)
what is continuous reinforcement?
behavior is reinforced each time it occurs
what is partial reinforcement?
behavior is reinforced intermittently
what is the fixed-ratio schedule of partial reinforcement?
number of required responses is fixed and does not change (ex: assembly line)
what is the variable-ratio schedule of partial reinforcement?
certain number of responses are required but number is unkown and varies (ex: gambling)