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Learning, Memory & Amnesia / Sleep, Dreaming & Circadian Rhythm -…

- - - - feeding, reproduction, caring for young, fight or flight
- - - - episodic
        
        memory of everyday events (time, location etc)
      - semantic
        
        ideas, concepts, fact aka general knowledge
    - - procedural
        
        involve performance of actions and skills (motor, visuospatial, cognitive)
      - priming
        
        exposure to stimulus influences response to later stimulus
- - - - Positive: add pleasant stimulus
      - Negative: remove aversive stimulus
    - - Positive: add advertise stimulus
      - Negative: Remove pleasant stimulus
- - - - persistent strengthening
        
        long-lasting increase in signal transmission between neurons
      - experiences and behaviour linked to structural changes in the brain
      - increased synaptic and dendritic material
      - increase synapse to neuron ratio
- - - - 50-150 uV, 12-14 Hz
      - 1-2 sec bursts, occur periodically
    - - large single positive wave
- - - - increase frequency, depth, and intensity of REM
    - - brain periodically switch to wakefulness or REM sleep
    - - substitue 15min of wakefulness for most REM (eliminate REM rebound)
- - - - free-running rhythm, approx 25h cycle)
- - - - reduce neuronal excitability by inhibiting nerve transmission
- - - - difficulty falling asleep (10-20min on avg)
    - - frequent awakening
    - - falling asleep easily, but wake up too early
- - - - within rhinal fissure
      - place fields
        
        project into areas of hippocampus
    - - around rhinal fissure
      - object recognition
      - construct and maintain complex representations of objects useful for a variety of processes
  - - - long-term memory
      - general principles and skills required to perform tasks
    - - temporary memory necessary for successful performance of task which one is currently working
    - - respond when subject is in specific location
    - - constructs and stores allocentric maps of external world
        
        allocentric: representations of space based on relations among external objects and landmarks
        
        egocentric: representations of space based on relations of objects and landmarks to one's own position
    - - hippocampus role is retention of behavioural significance of combinations of stimuli, but not of individual stimuli