Midterm Flashcards
Development
Orderly, adaptive changes from conception to detah
Maturation
Genetically programmed, naturally ocurring changes over time
Which theorist is discontinuous (based on qualitative)
Piaget
3 general principles of development
People develop at different rates
Development is relatively orderly
Takes place gradually
Cerebellum
Balance and smooth, skilled movements
Hippocampus
Recalling new information
Amgydala
Emotions
Thalmaus
Learn new information, especially verbal
fMRI
Blood flow during cognitive tasks
- Excellent spatial, terrible temporal
Event related potential
Assess electrical activity in brain as neurons fire
- Excellent temporal, poor spatial
Positron Emission Tomography
Track brain activity under different conditions
Weight of brain
1 pound at birth, 3 at adulthood
Experience-Expectant pruning
Synapses are overproduced in certain regions in anticipation of stimulation
Experience-Dependant pruning
Synaptic connections form based on experience, in response to neural activity in regions that are unable to process information
Cortical Hypoarousal
Diminished brain activity
What fills the spaces between neurons?
Glial cells: White matter that fights infections, controls blood flow and provides myelin
Myelination
Coating of axon fibres with insulating fatty glial covering
Cerebral cortex
Thin, outer sheet covering and largest brain area – responsible for complex thinking
What brain areas develop first and last
Motor first
Frontal lobe last
Temporal lobe
Emotions and judgement
Lateralization
Specialization of the two hemispheres results in faster processing
Who has less specialization
Women and left handed people
Left and right hemisphere specializations
Left: Language
Right: Spatial processing and emotions
How much sleep do teens need
9-10 hours
Two systems controlling impulses and risky behaviour
Limbic system
Prefrontal cortex
Limbic system
Growth causes teens to become more responsive to pleasure seeking stimulus
Sensory Store
Very large capacity but decays in a few seconds
- Attention guides information to short term or working memory
Short-term Memory
7+/- 2 chunks for 20 seconds
Either pulled from sensory register or long-term memory
Working memory
2 items fewer than STM
Can come from sensory or long-term
Capacity of working memory
2 items in childhood
4-5 in adulthood
Working memory sub system levels
Central executive
Visuospatial sketchpad, episodic buffer, Phonological loop
Long term memory
When does working memory grow rapidly
8-12
Recall
Generating mental representation of an absent stimulus
Reconstruction
Select and interpret information as it is encoded, stored or retrieved
Do kids do better with verbatim or gist?
Verbatim
3 steps in creating automatic memories
Cognitive
Associative
Autonomous
First memory
3.5 years
Amnesia
Infantile– 0-2
Childhood– 2-6– memories are flaky
When does the hippocampus stop developing
7
4 pre-literacy skills
Vocabulary
Alphabet recognition
Phonological skills
Listening comprehension
Morrison grade 1 reading
Computer gives student an individualized prescription for mix of phonics and whole word learning
Sustained attention
Staying on task
When does sustained attention increase sharply
2-3 years
Production deficency
Preschoolers open all the doors
Control deficency
Strategy but no inhibition – 5
Utilization Deficency
6 year olds master the strategy but do not yet see improved performance
Script
Repeated events, usually in causal order– earliest efforts at planning actions to lead to desired goal
Cognitive views of learning
Learning as an active mental process of acquiring and using knowledge – kids play an active role in their own learning
Perception
Interpretation of sensory information
Bottom up processing
Perceiving based on separate, defining features and assembling them into a recognizable pattern
Gestalt processing
People organize their perceptions into coherent wholes
Top down processing
Making sense of information by using context and what we already know
Cognitive load
Volume of resources needed to complete a task
Intrinsic CL
Unavoidable– resources required by the task itself, regardless of other stimuli
Extraneous CL
Avoidable/Manageable– Resources required to process irrelevant stimuli
Germane CL
Desirable– Deep processing of information related to task, including application of prior knowledge
Maintenance rehearsal
Repeating yourself to keep information in working memory