LONG-TERM MEMORY 1 Flashcards
TESTS OF MEMORY
- Recall/cued recall
- Recognition
- Priming
- Stem completion/word fragments/anagram completion
- Lexical decision tasks
- Artificial Grammar Tasks
PERCEPTUAL TESTS
- Word identification task
- Degraded word naming
- Anagram solution
NON-VERBAL TESTS
- Picture fragment naming
- Object decision task
- possible/impossible object decision
CONCEPTUAL TESTS
- Word association test
- Category instance generation
- General knowledge questions
RECALL AND RECOGNITION
- Amnesiac patients recognition of items they cannot recall (both episodic declarative processes)
- Challenging for advocates of multi-systems theories of memory —> claim that all explicit expressions of episodic (declarative) memory are mediated by the same brain system
Data suggests otherwise —> HIRST et al (1986)
- recall significantly lower in amnesiacs vs. Controls in both alcoholic and non-alcoholic ppts.
- Recognition remained relatively unaffected (alcoholics little decreased compared to controls)
MANDLER (1980) = TWO-PROCESS THEORY OF RECOGNITION (accounting for amnesiacs superior recognition performance)
= recognition is a judgement of prior occurrence based on two quite different processes - retrieval and familiarity
- RETRIEVAL/RECOGNITION = retrieval reflects the conscious recollection of a previous event in all its episodic glory
- FAMILIARITY = related to priming-based experiences of perceptual and conceptual salience and fluency
- Because familiarity is spared in amnesia, along with other facets of implicit memory, some degree of recognition should be preserved
TULVING (1985) - REMEMBER/KNOW PARADIGM (accounting for amnesiacs superior recognition performance)
= participants are shown a list of words (or pictures)
= later presented example words to identify as “remember” or “know”
= target previously seen words are mixed with new unseen ‘lure’ words
GARDINER & PARKIN (1990) - DUAL-PROCESS MODEL (accounting for amnesiacs superior recognition performance)
= View remember and know responses as the consequences of two qualitatively different processes or states underlying memory retrieval
DONALDSON (1996) - SINGLE PROCESS (accounting for amnesiacs superior recognition performance)
= derived from the theory of signal detection
= view remember and know responses as the consequences of different levels of confidence that an item has been recalled or recognised
SINGLE RECOGNITION PROCESS
= DUNN (2008)
= argued in support of recognition as a single process
= Meta-analysis of 37 studies using remember/know method
= suggested strong memory trace gives rise to recognition/remember judgements and weak memory traces to familiarity/know responses
DUAL PROCESS TO RECOGNITION
= ADDANTE ET AL. (2012)
= support for dual process model using ERP
= Familiarity judgements showing negative N400 peak between 400-600ms after onset
= Recollection was associated with a late positive component 600-900ms after onset
HOW DO WE STORE INFORMATION
= SEMANTIC NETWORKS (Collins & Quillian, 1969; Steyvers & Tenenbaum, 2005)
= SCHEMAS (Bartlett, 1932)
= MULTI-STORE MODEL (Atkinson & Shiffrin)
= LEVELS OF PROCESSING (Craik & Lockhart, 1972)
= Tulving (1972) - DISTINCTION BETWEEN EPISODIC, SEMANTIC AND PROCEDURAL MEMORY
= Cohen & Squire (1980) - DISTINCTION BETWEEN DECLARATIVE AND PROCEDURAL KNOWLEDGE
HIERARCHICAL SEMANTIC NETWORK MODEL - Collins and Quillian (1969)
= Assume that each step through the hierarchy takes time
= Reaction time to level 3 should be longer than to get to level 2
= Everything at the same level of the hierarchy should be accessed with equal speed (e.g. Animal -> dog -> Alsatian)
SPREADING ACTIVATION
= Adapted from Collins and Loftus (1975)
= Activates all related information = PRIMING
= When words are related, reaction times when asked whether they were words or non-words were quicker (e.g. bread and butter vs. bread and nurse) (MEYER AND SCHVANEVELDT, 1971)
= activation closer and therefore association is quicker
AMNESIA
ANTEROGRADE = Reduced ability to remember information acquired AFTER the onset
RETROGRADE = Problems remembering events occurring BEFORE the onset