Unit 9 Flashcards
Developmental psychology
A branch of psychology that studies physical, cognitive, and social change throughout the life span.
Zygote
The fertilized egg; it enters a 2-week period of rapid cell division and develops into an embryo.
Embryo
The developing human organism from about 2 weeks after fertilization through the second month.
Fetus
The developing human organism from 9 weeks after conception to birth.
Teratogens
(Literally, “monster makers”) agents, such as chemicals and viruses, that can reach the embryo or fetus during prenatal development and cause harm.
Fetal alcohol syndrome (FAS)
Physical and cognitive abnormalities in children caused by a pregnant woman’s heavy drinking. In severe cases, signs include a small, out-of-proportion head and abnormal facial features.
Habituation
Decreasing responsiveness with repeated stimulation. As infants gain familiarity with repeated exposure to a stimulus, their interest wanes and they look away sooner.
Maturation
Biological growth processes that enable orderly changes in behavior, relatively uninfluenced by experience.
Cognition
All the mental activities associated with thinking, knowing, and remembering, and communicating.
Schema
A concept or framework that organizes and interprets information.
Assimilation
Interpreting our new experiences in terms of our existing schemas .
Accommodation
Adapting our current understandings (schemas) to incorporate new information.
Sensorimotor stage
In Piaget’s theory, the stage (from birth to nearly 2 years of age) during 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) during which a child learns to use language but does not yet comprehend the mental operations of concrete logic.
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.
Egocentrism
In Piaget’s theory, the preoperational child’s difficulty taking another’s point of view.
Theory of mind
People’s ideas about their own and others’ mental states–about their feelings, perceptions, and thoughts, and the behaviors these might predict.
Concrete operational stage
In Piaget’s theory, the stage of cognitive development (from about 7 to 11 years of age) during which children gain the mental operations that enable them to think logically about concrete events.
Formal operational stage
In Piaget’s theory, the stage of cognitive development (normally beginning about age 12) during which people begin to think logically about abstract concepts.
Scaffold
A framework that offers children temporary support as they develop higher levels of thinking (Vygotsky’s theory).
Autism spectrum disorder (ASD)
A disorder that appears in childhood and is marked by significant deficiencies in communication and social interactions, and by rigidly fixated interests and repetitive behaviors.
Stranger anxiety
The fear of strangers that infants commonly display, beginning by about 8 months of age.
Attachment
An emotional tie with anther person; shown in young children by their seeking closeness to their caregiver and showing distress on separation.
Critical period
An optimal period early in the life of an organis when exposure to certain stimuli or experiences produces normal development.
Imprinting
The process by which certain animals form strong attachments during early life.