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Flashcards in 1. LTM Deck (17):
1

Semantic memory

Form of episodic memory

General knowledge about the world and language

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Declarative memory

Conscious recollection of information

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Anterograde amnesia

Difficulty in forming new memories after the injury

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Retrograde amnesia

Memory loss of events prior to the injury

Is often temporally graded whereby memory loss is worst for event immediately before the injury

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How do we study memory?

Amnesia patients- usually through brain injury (although this can be difficult due to global damage)

Korsakoffs syndrome is alcoholic damage that is more specific to areas

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Amnesic patients struggle to form .......... Memories but have no trouble with.......... Memory to learn new skills

Declarative
Non declarative

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Hippocampus damage leads to what?

Reduced episodic memory (forever reliant on the hpc)

Temporally graded impaired semantic memory (memories immediately prior to injury are lost as there is no chance for consolidation and to become independent of the hpc)

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Episodic and semantic memory as separate stores
Anterograde memory

Neuropsychology
Medial lobe damage- anterograde amnesia, patients have impaired EM but only minor SM impairment

Px Jon- hippocampus damage at age 4 before development semantic development. EM was severely damaged but SM was better

Patient with only hpc damage- em impairment, intact SM
Wider MTL damage- impaired EM and SM

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Semantic dementia

Shows opposite pattern of impairment to amnesia

Damage to ANTERIOR temporal lobe- semantic impairment and intact EM

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Episodic brain region...

Hpc

(Shared PFC with semantics)

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Semantic brain regions

Posterior temporal lobe

(shared PFC with episodic)

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Familiarity

Fast and automatic

Sense of knowing without memory of exact context of when first experienced or learnt

Hpc is not involved

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Recollection

Slower, effort full, attention demanding

Remembering contextual details about a memory

Hippocampus involvement- episodic

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Relation of EM to SM

EM must be processed through SM

Can be retrieved independent of each other

15

Remember

Amnesia patients have impaired R

associated with EM- hpc dependent

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Knowing

Less impaired in amnesia patients


Associated with semantics and not related to hpc

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Episodic memory

Form of declarative memory

Mental time travel

Access and re-experience events located in time and space. Personal memories, who, what, where, when