Developmental Psychology things Flashcards
Cross Sectional studies
study compares groups of subjects at different ages
Longitudinal study
Studies the same group across time at multiple intervals
Sequential cohort study
combine cross sectional and longitudinal research methods
Nature vs Nurture
Debate in developmental psychology, innate versus environmental
Gene
basic unit of heredity
Allele
Alternative form of a gene either dominant or recesive
Genotype
genetic makeup
Phenotype
observable characteristics
Chromosomes
The structural units of many genes, adult carries 23 chromosome pairs 1/2 from mother and 1/2 from father
How much is inherited from your parents
50%
How much genetic code do siblings, fraternal twins have in common
50%
RC Tyron, maze rats
maze-bright, and maze dull rats. Selective breeding of maze bright rats and maze bright rats to demonstrate that ability to learn could be genetically passed on.
Down Syndrome
a genetic anomaly where the individual has an extra 21 chromosome
PKU
Phenylketonuria enzyme needed to digest phenylalanine is absent, leads to severe retardation if not treated
Klinefelter’s Syndrome
Males with an extra X chromsome (XXY)
sterile and have mental retardation
Turner’s Syndrome
Failure to develop secondary sex characteristics (females with only one X chromosome)
Zygote
Fertalized egg
Germinal stage
conception to two weeks
Embryonic stage
8 weeks, produce androgen and grow sex organs, first motionof limbs,
Fetal Period
During the third month and you see brain activity
External threats
Malnutrition, protein defiiceincy, narcotic dependency, cigarrett smoke = slowed growth, alcohol =FAS
Reflexes
Rooting, Moro, Babinski, Grasping
Jean Piaget
Theory of adaptation from basic understandings and interactions with the world to more complex ones involving abstract thought.
Schema
Organized patterns of behavior and thought
Assimilation
Is the process of interpreting new information in terms of an existing schema
Accommodation
Occurs when new information doesn’t really fit into existing schemata; it is the process of modifying existing schemata to adapt to this new information
4 stages
Sensorimotor
Preoperational
Concrete opreational
Formal operational
Sensorimotor stage
Birth to age two
Object permanence
Primary (motions with the body) and secondary circular reactions (manipulate objects external to it) i.e. sucking on anything to satisfy hunger
Preoperational stage
2 to 7 years
beginning of representational thought
objects exist even though they cannot be perceived
centration: the ability to focus on only one aspect of a phenomenon.
Egocentrism
Conservation of physical properties
Concrete operational stage
7 to 11 can take perspective of others but are limited to working with concrete objects or information that is directly avail