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Strategic processing in long-term repetition priming in the lexical decision task
Yoav Kessler1, Morris Moscovitch
1University of Toronto, Ontario, Canada. kesslery@bgu.ac.il
Memory (Hove, England)
|November 7, 2012
Summary
This study reveals that repetition priming in lexical decision tasks involves both implicit and explicit memory. A dual route model explains how participants use lexical information or experimental correlations to identify words.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Memory Research
Background:
- Repetition priming effects in lexical decision tasks (LDTs) are often attributed solely to implicit memory.
- Faster reaction times (RTs) for previously seen items suggest memory involvement.
Purpose of the Study:
- To investigate the roles of both implicit and explicit memory in repetition priming within LDTs.
- To propose and test a dual route model of lexical decision-making.
Main Methods:
- A lexical decision task was employed.
- A dual route model was proposed, comprising a lexical route and a strategic route.
- The strategic route was manipulated by altering the correlation between 'wordness' and 'oldness'.
Main Results:
- Repetition priming effects were observed.
- Removing the strategic route diminished priming at the slow end of the RT distribution.
- Priming effects remained at the fast end of the RT distribution even after removing the strategic route.
Conclusions:
- Repetition priming in LDTs is influenced by both implicit and explicit memory processes.
- The proposed dual route model effectively accounts for the dissociation observed in priming effects.
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