1. Retrieval practice
Quiz - theories of LTM

2. Theories of LTM
Main claim: that there are qualitatively different types of LTM which represent separate LTM subsystems.
Difficulty:
In an experiment, we expose PPs to a set of stimuli. This creates:
Semantic memory of the content of the stimulus;
Episodic memory of the circumstances of exposure.
(Compare - what you stored from last lesson)
Recall can be of 1, 2 or an ‘educated guess’
Practically impossible to separate the semantic & episodic memory, so can’t show experimentally that S and E memories are different.

3. Theories of LTM Most evidence comes from clinical case studies.
We look for dissociations between E, S and P memories.
i.e. does anything affect one but not the others?
Dissociations imply existence of separate LTM subsystems.
BUT
Need to be cautious when relying on clinical case studies

4. Studies relating to theories of LTM
Milner et al (1968)
Ostergaard (1987)
Shallice & Warrington (1974)
Tulving (2002)
Varga-Khadem et al (1997)
NB. One of these studies does not belong!