Term 1, lectures 6-10 Flashcards
Bottom up process
Sensory driven
Organise incoming information
Top down processes
Driven by knowledge, experience and expectations
Determine perception in ambiguous settings
Gestalt or whole percept
Perceptual organisation
Perceptual constancies
Perceptual illusions
Consciousness
Awareness of self and surroundings, operates on a continuum
Functional views of consciousness
Monitoring - attentions, you experience what you attend to
Controlling - plan, initiate and guide future actions
Conscious and unconscious actions
Hypnosis
Altered consciousness or period of focused attention
Hypnotised state
Receptive to suggestions
Narrowing attention to single source
Lack of initiative and wilful action
Can bring pain relief
Basic structure of sleep
Sleep staircase -
1 > 2 > 3 > 4 > 2 > REM > 2 > 3 > 4 > 2 > REM > 2 …
Organisation of Sleep
Core sleep
- first 5 hours
- most of deep sleep
- half of REM
Optional sleep
- Next 2+ hrs
- Mostly stage 1&2
Insomnia
- Delayed sleep onset, disturbed sleep, early morning waking
- Causes; psychological, medical disorders
- Treatment; hypnotic drugs, sleep education
Narcolepsy
- Sleep attacks - overwhelming sleepiness
- Cataplexy (paralysis of voluntary muscles)
- Vivid sleep-onset dreams
Sleep deprivation
- Most effect on cortical functions
- Only 1/3 lost sleep recovered
3 stages of memory
Encoding - Storage - Retrieval
Long-term memory
Episodic - autobiographical e.g when did you last ride a bike?
Semantic - knowledge about the world e.g what is a bike?
Procedural - skills based e.g how do ride a bike?
Multi-store memory model
Articulatory loop Short-term store Visio-spatial scratch pad Short-term store Long term Short-term store Long term -> Sensory store Sensory store -> Short-term store