thinking about learning and memory

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thinking about learning and memory. Memory? Types of memory, CNS regions, memory impairments Learning? Models for learning. Memory Processing. if attended. Short-term Memory (STM) Limited capacity (7 items) can use chunking Brief duration - PowerPoint PPT Presentation

Text of thinking about learning and memory

  • Memory?Types of memory, CNS regions, memory impairments Learning?Models for learning

  • if attended

  • Short-term Memory (STM)Limited capacity (7 items)can use chunking

    Brief durationCan be lost without rehearsal or with interference

  • if attended

  • Short-term Memory (STM)Limited capacity (7 items)can use chunkingBrief durationcan be lost without rehearsal or with interference

    Long-term Memory (LTM)more permanent storage

    Consolidation - Process by which rehearsal of information in STM results in transfer to LTM

  • if attendedretrieval

  • Amnesia refers to a failure to rememberAnterograde amnesia - difficulty in forming new memories for events that occur after a brain trauma

    Retrograde amnesia - inability to recall events that occurred prior to a trauma

    Amnesia can be temporary or permanent

  • Severe anterograde amnesia follows bilateral damage to the hippocampus

  • Surgery 1953 for debilitating epilepsybilateral removal of hippocampusconsequences: severe anterograde amnesiashort-term memory intactlong term memory prior to surgery intactmotor memories intactmedial temporal amnesia

  • Declarative memory: memories available as facts, events, or specific stimuli

    Nondeclarative memory: stimulus-response and motor memories that control behaviors at an unconscious level

  • Hippocampal dependent

  • these can be true or false

  • Prefrontal Cortex-memory deficits planning, sequence of events

    Cerebellummotor memories

  • amygdalapart of the limbic system; emotional memories

  • Alzheimers diseaseHippocampus has many cholinergic neuronsbasal forebrain area specifically affected by AD

    Korsakoffs syndrome

  • Korsakoffs syndromesevere anterograde amnesia with elements of confabulationconsequence of chronic alcohol abuselesions in a number of brain structures including

  • ECS electroconvulsive shock

    State dependent memories (and state dependent learning)

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