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