Cognitive Approach and Structure

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  • Cognitive approach & structure
    • Information processing approach: aim is to specify the process & structure underlying cognitive performance
      • stimulus --> attention --> perception --> thought process --> decision --> response or action
    • Types of cognition
      • lower order (attention, perception)
      • higher order (memory, language, reasoning & problem solving)
    • ACT - R: cognition arises from interaction of procedural (knowledge of how to do things) and declarivtve (facts)
      • model accounts for memory, learning, spatial cognition reasoning
      • A 'propositional network' respresents the meaning of a senstance
        • - Links become stronger as used more, ----------------------practice is important for developing extensive semantic memory
          • Limit of WM can restrict the spreading ---------------------- when many links are activated each link recieves little activation which leads to overload
    • The Parallel Distributed Processing (Connectionism):
      • Attempts to incorporate the physiological and structural properties of human neurons
      • Info represented as patterns of activation along neural elements
      • Principles: (1)Information distributed (2)memory & knowledge stored in connections (3)learning can change connections

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