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The visual paired-comparison task as a measure of declarative memory
J R Manns1, C E Stark, L R Squire
1Departments of Psychology, University of California at San Diego, La Jolla, CA 92093, USA.
Summary
The visual paired-comparison task assesses declarative memory, relying on the hippocampal formation. Performance on this task predicts future recognition memory, unlike perceptual priming.
Area of Science:
- Neuroscience
- Cognitive Psychology
Background:
- The visual paired-comparison task is known to depend on the hippocampal formation in various species.
- Previous research suggests a link between this task and memory functions.
Purpose of the Study:
- To investigate the nature of the visual paired-comparison task in healthy human volunteers.
- To determine if performance on this task reflects declarative memory or other cognitive processes.
Main Methods:
- Healthy volunteers completed the visual paired-comparison task.
- Performance on this task was correlated with subsequent recognition memory performance.
- Perceptual priming was also assessed and compared to recognition memory.
Main Results:
- Performance on the visual paired-comparison task significantly predicted subsequent recognition memory.
- Perceptual priming was found to be unrelated to subsequent recognition memory performance.
- These findings align with lesion studies implicating the hippocampus.
Conclusions:
- The visual paired-comparison task appears to measure a component of declarative memory.
- The results support the role of the hippocampal formation in this form of memory.