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Recognition memory for distractor faces depends on attentional load at exposure
Rob Jenkins1, Nilli Lavie, Jon Driver
1Department of Psychology, University of Glasgow, Glasgow G12 8QB, Scotland. rob@psy.gla.ac.uk
Psychonomic Bulletin & Review
|August 9, 2005
Summary
High attentional load impairs incidental face recognition memory. Even when faces are task-irrelevant, a demanding non-face task prevents later recognition, supporting load theory and impacting eyewitness testimony.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Human Memory
Background:
- Incidental memory refers to memory for information encountered unintentionally.
- Attentional load theory posits that cognitive load affects information processing and memory formation.
Purpose of the Study:
- To investigate how attentional load influences incidental recognition memory for faces.
- To determine if a high-load, non-face task can impede memory for task-irrelevant faces.
Main Methods:
- Participants performed unrelated tasks (varying in attentional load) while viewing faces as distractors.
- A surprise recognition memory test was administered for the previously viewed faces.
- Experiments manipulated task difficulty and attentional demands using letter stimuli.
Main Results:
- Faces exposed under low attentional load were recognized later.
- Faces exposed under high attentional load were not recognized.
- High load in a non-face task significantly reduced immediate face recognition.
Conclusions:
- Attentional load in a non-face domain negatively impacts incidental face recognition memory.
- Findings align with Lavie's load theory, demonstrating its applicability to face memory.
- Results have implications for understanding memory limitations and eyewitness testimony accuracy.