4.1 Cognition Flashcards
HIGH YIELD
Cognition
how our brains process and react to the incredible info overload presented to us by the world
information processing model
states that the brain encodes, stores, and retrieves info much like a computer.
The 4 key components of the information processing model
- Thinking requires sensation, encoding, and storage of stimuli
- Stimuli must be analyzed by the brain to be useful in decision-making
- Decisions made in one situation can be extrapolated and adjusted to help solve new problems (situational modification)
- Problem solving is dependent on the persons cognitive level and the context and complexity of the problem
Dual-coding theory
Paivio’s theory that states that both verbal association and visual images are used to process and store info.
The redundancy inc the chances that the info can be retrieved and used effectively when cued
Cognitive Development
The development of one’s ability to think and solve problems across the lifespan
Piaget’s 4 stages of cognitive dev:
Sensorimotor stage Preoperational stage
Concrete operational stage
Formal operational stage
Sensorimotor stage
- Starts at birth until ~ 2 y/o
- focuses on manipulating the env to meet physical needs through circular reactions.
- Ends with object permanence
Primary circular rxn
the repetition of a body movement that originally occurred by chance, such as sucking the thumb
Secondary circular rxn
when manipulation is focused on something outside the body, such as throwing toys from a high chair
object permanence
The understanding that objects continue to exist even when out of view.
- beginning of representational thought
representational thought
where the child has begun to create mental representation of external objects and events
Preoperational stage
- Starts ~ 2 y/o until ~7 y/o
- focuses on symbolic thinking, egocentrism, and centration.
Symbolic thinking
the ability to pretend, play make-believe, and have an imagination
Egocentrism
the inability to imagine what another person may think or feel
Centration
tendency to focus b only one aspect of a phenomenon, or inability to understand the concept of conservation
Concrete operational stage
- Starts ~ 7 y/o until 11 y/o
- focuses on understanding the feelings of others and manipulating physical (concrete) objects.
- Have not yet dev the ability to think abstractly
Formal operational stage
Start ~11 y/o
focuses on abstract thought and problem solving
Lev Vygotsky
prominent educational psychologist, proposed that the engine driving cognitive development is the Childs internalization of his or her culture
Fluid intelligence
consists of problem-solving skills which peaks in early childhood
Crystallized intelligence
related to use of learned skills and knowledge which peaks in middle adulthood
Dementia
non benign intellectual decline. Often begins w/ impaired men, but later progresses to impaired judgment and confusion
Biological factors that affect cognition
organic brain disorders, genetic and chromosomal conditions, metabolic derangements, and drug use
Delirium
rapid fluctuation in cognitive function that is reversible and caused by medical causes such as electrolyte and pH disturbances, malnutrition, low blood sugar, infection, a drug rxn, alcohol w/drawal, and pain