Assimilation
interpreting our new experiences in terms of our existing schemas.
Accommodation
adapting our current schemas (understandings) to incorporate new information.
Monosygotic (identical) and dizygotic (fraternal) twins
Identical- develop from a single fertilized egg, most closely related human pairs
Fraternal- develop from two eggs, are like regular siblings, but they share the same womb
Behavior genetics: twin and adoption studies
Identical twins are more alike than fraternal twins in many ways
Personality traits, behaviors/outcomes, abilities
Even raised apart they are still similar
Adopted children are more similar to their genetic relatives, but some impact with parenting
Visual preferences in newborns
Infants will look at things longer that is novel or interesting
more time looking at patterns than solids, spend the most time looking at a human face, looked more intensely at proper face
Mark Johnson’s Theory of Face Recognition Abilities
Subcortical system- sketchy knowledge of what a face should look like (innate)
Cortical system- can learn about faces
Abilities of infants shown in looking time studies
Infants look longer at objects that seem to violate physical laws than those that do not
Piaget
Stages of Development- each stage is qualitatively different from others, ages for stage transitions are approximate
Cognitive structures and abilities
Adaptation
Sensorimotor stage
in Piaget’s theory, the stage (from birth to nearly 2 years of age) at which infants know the world mostly in terms of their sensory impressions and motor activities.
Object permanence
the awareness that things continue to exist even when not perceived.
Preoperational stage
in Piaget’s theory, the stage (from about 2 to 6 or 7 years of age) at which a child learns to use language but does not yet comprehend the mental operations of concrete logic.
Egocentricism
in Piaget’s theory, the preoperational child’s difficulty taking another’s point of view.
Concrete operational stage
in Piaget’s theory, the stage of cognitive development (from about 7 to 11 years of age) at which children gain the mental operations that enable them to think logically about concrete events.
Conservation
the principle (which Piaget believed to be a part of concrete operational reasoning) that properties such as mass, volume, and number remain the same despite changes in the forms of objects.
Formal operational stage
in Piaget’s theory, the stage of cognitive development (usually beginning about age 12) at which people begin to think logically about abstract concepts.
Stranger anxiety
the fear of strangers that infants commonly display, beginning by about 6 months of age, peaks at about 1 year of age then declines
Attachment
an emotional tie with others; shown in young children by their seeking closeness to caregivers and showing distress on separation.
Harlow’s studies of attachment in monkeys
tested primary drives theory in phesus monkeys
2 surrogate mothers- a wire surrogate, and a cloth surrogate
Showed that contact comfort is more important
Imprinting
the process by which certain animals form strong attachments during early life.
Strange situation test
done by Mary Ainsworth
-mother and child observed in a playroom
-initial mother-child interaction, mother leaves infant alone, friendly stranger enters, mother returns and greets child, see how child reacts to stanger and how they ract when mom returns
Separation anxiety
a fear reaction when the primary caregiver is absent, seen across all cultures, corresponds with development of object permanence
Secure vs. insecure attachment
Secure- a parent-infant relationship in which the baby is secure when the parent is present, distressed by separation, and delighted by reunion
Insecure- two types
Resistant- baby clings to the parent, cries at separation and reacts with anger at reunion
Avoidant- doesn’t care if mom leaves, doesn’t react when she returns
Delay of gratification
ability to resist the temptation for an immediate reward and wait for a later reward
Early maturing boys vs. late maturing
Early- more attractive to girls and to adults, taller and stronger, better in sports, happier more confident, do better in school
Late- less good at sports, teased by peers, self-conscious about size and manliness