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Perception - Coggle Diagram

- - - - We only have our sense data to ratify our sense data
        
        common perception- most people see the same thing.
        
        We perceive primary qualities exactly as they are but indirectly, but secondary qualities must rely on primary qualities, therefore primary qualities have to exist.
        
        The organisation of objects must correspond with how they actually are. Sense data can be used to determine the relationships between objects: we can assume a red ball is different to a blue ball, and there is some corresponding difference between the physical objects.
        
        Theory of survival
      - If we can never perceive an object directly, how do we know it truly has the qualities we perceive it to have.
  - - - Dreams counter
        
        Vivid reality compared to dreams, hand in fire.
- - - - Illusion
      - Perceptual variation
      - Hallucinations
      - Time lag