Choosing Attention
Triumvirate of Attention, Memory, and Learning at the top of cognitive function.
Search for Memory
- Tasks we do/think of create response in the synapses, eventually creating links between neurons called "Neural trace"
- We don't know how the brain creates memories
- Learning is dependent on memory
- Science over memory spans multiple eras, which have resulted in multiple paradigm shifts regarding perception of memory science - ZEITGEIST
Short-term and Long-term memory are distinct and separate.
- Short-term: biochemical changes in brain
- Long-term: Increases number of synapse connections
Kandel's work chronologically paralleled discoveries in:
- Neurogenesis (birth of new brain cells)
- Neuroplasticity (physiological change of brain as a result of experience, learning)
Attention exists as a process throughout the entire brain.
- Altering network - Pay attention!
- Orienting network - allows us to respond quickly without conscious effort
- Executive attention - selects where to designate brain power
Sleep processes:
- synaptic pruning - weak synapses fade away, leaving strong ones only
- dreaming reinforces daytime short-term memory
Exercise processes:
- Increases size of hippocampus (memory-creating region of brain)
- ART (Attention Restoration Theory) suggests walking in nature is best to refresh attention.
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