Exam 2 Flashcards
Most dramatic changes occur during
Prenatal development
Zygote
Formed when sperm cell fertilizes an egg
What happens during the germinal stage
Zygote divides over and over again to form blastocyst
How long does the embryonic stage last
8 weeks
Fetal stage
9th week
Major organs are established and heart beats
Brain development
Between day 18 and 6th month neurons grow at an incredible rate
Teratogens
Environmental factors that can exert a negative Impact on prenatal development
Like smoking, drugs
Viability point
25 weeks
Motor behaviours
Bodily motions that occur as results of self initiated force that moves the bones and muscles
The relative size of our body parts changed dramatically during the first
20 years
Transitional period between childhood and adulthood
Bodies reach full maturity is part due to hormonal release
What does puberty cause
Changes in primary and secondary sex characteristics
Menarche
First incidence of menttruation
Spermarche
Beginning development of sperm
Fertility in women declines
Thirties and forties
How we acquire to learn think and communicate differ in the three ways
Stagelike vs gradual changes in understanding
Sudden spurts in knowledge followed by periods of stability
Domain general vs domain specific
Cognitive skills affect most or all cognitive function
Cognitive skills develop independly and at different rate
Principal source of learning
Some models emphasize physical experience and some social
Jean piaget
Swiss
Presented first complete account of cognitive development
Stage theorist who believed skills were domain general
Piaget theory
Schema
Organized mental patterns that adapt and change with mental development
Intellect grows through two processes
Assimilation
Process in which people understand an experience in terms of their current stage of cognitive development and way of thinking
Accommodation
Changes in existing ways of thinking that occur in response to encounters with new stimuli or events
Piaget stages
Sensorimotor
Birth to two years
Focus on the here and now
Lack object permanence and deferred imitation
Major milestone is mental representation
Preoperational
2-7 years
Ability to construct mental representation of experience
Hampered by egocentrism and inability to perform mental operation
Lack convo
Concrete operations
7-11
Mental operations but only for actual physical events
Formal operations
11- adulthood
Understand hypothetical reasoning beyond the here and now
Logical concepts and abstract questions
Cons of piaget
Development is more conti uous
Probably underestimated children’s competence
Culturally biased methods
Pros of piaget
Highly influential
Helped change how we think about cognitive development
Children are not small adults
Learning is active rather than passive process
Lev vygotsky
Social and cultural Influences on cognitive development
Parents structure environments for learning and then gradually remove it (scaffolding)
Cognitive landmarks
Categorize objects by kind
Naive physics and how physical objects behave
Concept of self and others and theory of mind
Counting and math
Cognitive changes in adolescence
Frontal lobes don’t fully mature till late adolescence
May not care about risks
Changing attitudes toward knowledge
Cognitive function in late adulthood
Aspects of cognition decline
But many stay stable or increase
When does stranger anxiety start
8-9 months
Peaks 13-15 months
Temperament
Early appearing and largely genetic
Three major styles
Easy 40%
Difficult 10
Slow to warm up 15
10% of children may be behaviorally inhibited
Attachment
Emotional connection we share with these to whom we feel closest
Imprinting and possible sensitive/critical period for healthy interpersonal relationships
Ruthers studies of Romanian organs
….
Contact comfort
Behaviorist assumed children bonded with those that provided them nourishment
Harry hallows work with rhesus mo keg showed otherwise
Physical contact played a huge role in developing attachment
Attachment styles
Refers to hoe infants react when separated from primary caregiver strange situation task
Four categories of behviour
Secure attachment 60%
Sad when mom leaves then joy when she comes back
Insecure avoidant 15-20%
Not too sad when mom leaves not really joyful when returns
Insecure anxious 15-20%
Panics when mom leaves, mixed emotions on return
Disorganized 5-10%
Confused set of responses
Parenting styles
Permissive
Tend to be lenient, little discipline, very affectionate
Authoritarian
Very strict, punishing, little affection
Authoritative
Supportive, but set clear and firm limits
Uninvolved
Neglectful, ignoring
Baumrinds research
Authoritive parents show the best social and emotional adjustment and lowest levels of behavior problems
Her findings may not hold up well outside of Caucasian middle class of North American families