Test 2 Flashcards
cerebral cortex
Upper layer of the brain
hindbrain
contains structures including medulla, the pons and the reticular formation
cerebellum
part of the brain that controlls movement and balance
reticular formation
an area of the brain associated with attention and concentration
handedness
the preference of using one hand over the other
lateralization
process in which certain cognitive functions are located more in one hemisphere of the brain than in the other
myelin
protective insulation that surrounds parts of the neurons, increasing the speed of transmission of electrical impulses along brain cells
plasticity
degree to which a developing structure or behavior is modifiable due to experience
synaptic pruning
the elimination of neurons as the result of nonuse or lack of stimulation.
Assimilation
is the process by which people understand an experience in terms of their current stage of cognitive developers and way of thinking.
Example: assimilation occurs when a stimulus or an event is acted upon, perceived, and understood in accordance with existing patterns of thought. An infant who tries to suck on any toy in the same way is assimilating the objects to her existing sucking scheme. Similarly, a child who encounters a flying squirrel at a zoo and calls it a “bird “is assimilating the squirrel to his existing scheme of bird.
Accommodation
refer to changes in existing ways of thinking, understanding, or behaving in response to encounter with new stimuli or events.
For instance, when a child sees a dying squirrel at a zoo and calls it” bird with trail”, he is beginning to accommodate new knowledge, modifying his scheme of bird.
Centration
the process of concentrating in one limited aspect of a stimulus and ignoring other aspects.
Conservation
is the knowledge that quantity is unrelated to the arrangement and physical appearance of objects
Egocentric thought
is thinking that does not take into account the viewpoints of others
Goal-directed behavior
behavior in which serberal schemes are combined and coordinated to generate a single act to solve problem
Mental representation
an internal image of a past event or object.
Object permanence
the realization that people and objects exist even when they cannot be seen
Operations
organized, formal, logical, mental processes.
Pre-operational stage
according to Piaget, the stage from approximately age 2 to age 7 in which childrens’ use of symbolic thinking grows, mental reasoning emerged, and the use of concepts increases.
Scaffolding
the support for learning and problem solving that encourages independence and growth.
Scheme
an organized pattern if sensorimotor functioning.
Zone of Proximal Development
according to Vygotsky, the level at which a child can almost, but not fully, perform a task independently, but can do so with the assistance of someone more competent.