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Biopsychology (Neurons (image (Dendrites - Thin, branch - like ends that…

- - - - Voluntary movement on opposite side of the body.
    - - Broca's aphasia - problem producing language.
  - - - Sensory info from skin.
  - - - Wernicke's aphasia - problem understanding language.
    - - Analyses speech information
  - - - Opposite eye sends information to opposite cortex.
- - - - Stage 1 & 2 - alpha waves to theta waves, light sleep where person.
        Stage 3 & 4 - delta waves, waves with high amplitude where sleep is deep & difficult to rouse person from it.
        REM (Rapid Eye Movement) - Body paralyses though brain activity speeds up to resemble the state of the brain as if person was awake. Highly correlated with dreaming.
  - - - Speculated it to have been caused by lower light. The pineal gland secretes melatonin to cause drowsiness, therefore more melatonin levels causes long depression episodes in winter.
    - - Oestrogen produced to release egg into the womb, the progesterone helps womb lining grow thicker.
- - - - Parasympathetic state
        
        Opposite of sympathetic state
      - Sympathetic state (fight/flight response)
        
        Inhibition of digestion
        
        Inhibition of saliva production
        
        Increased heart rate
        
        Contracts rectum
        
        Increased breathing rate
        
        Dilates pupils
- - - - Bundle of cells in hypothalamus, above the optic chasm & receives information about light from there.
        
        Influential in maintaining circadian rhythm, e.g. Sleep/wake cycle.
    - - Light info passes from SCN to pineal gland, where melatonin secreted at night to induce sleep & inhibited in the morning.