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Unformatted text preview: 1 Long Term Long Term Memory (LTM) Memory (LTM) Some questions Some questions Different Kinds of LTM Different Kinds of LTM Declarative Memory Declarative Memory • 2 types: – Episodic : specific events that have happened to the person having the memory • Where did I park my car. • When did I last meet you. – Semantic : knowledge about the world that is not tied to any specific personal event. • Dogs are animals. • Cars drive. Episodic Episodic-Semantic Semantic Double Dissociation Double Dissociation • Schacter (1996): Golfing with Frederick – Fred has Alzheimer’s disease – Remembered rules of golf, but... – Forgot he had teed off, and that they played a round after finishing! • Vargha-Khadem et al. (1997): Premie Jon damage to hippocampus & temporal lobe structure – damage to hippocampus & temporal lobe structures – unable to remember conversations, visitors, etc. – able to read, write, and understand factual info at the normal range. • DeRenzi et al. (1987): Italian woman – contracted encephalitis at 44 – remembered familiar people, but... – had trouble remembering meaning of words – a ‘complement’ to Fred & Jon. Episodic Episodic-Semantic Semantic Connections Connections • Episodic gateway to semantic • Episodic used to infer semantic information • Semantic knowledge can influence the formation of episodic memories 2 Implicit Memory Implicit Memory • Unconscious past experience that influences behavior • First demonstrated in people suffering from Korsakoff’s syndrome – Warrington & Weiskrantz (1968) Warrington & Weiskrantz Warrington & Weiskrantz (1968) Results (1968) Results Declarative vs. Implicit Declarative vs. Implicit – Double dissociation Double dissociation • Korsakoff’s Syndrome: – Are able to learn new skills. – Cant remember where they are and who they met 5 minutes ago met 5 minutes ago. • Huntington and Parkinson Disease: – Have trouble learning new skills, especially motor skills. Repetition Priming Repetition Priming • Remember: – country – basket – crate – blasphemy – genre – taint • Create a word from: – cou_____ Other Kinds of Priming Other Kinds of Priming Effects Effects • Subliminal messages at the movies – (although, there is little support they work; still a good example) • Propaganda effect: participants are more likely to rate statements they have read or heard...
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- Fall '11
- Long-Term Memory, Craik