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Temporal grouping and direction of serial recall
1Department of Psychiatry, University of Alberta, Edmonton, AB, T6G 2R3, Canada. ly6@ualberta.ca.
Memory & Cognition
|July 25, 2020
Summary
Temporal pauses in lists improve memory recall accuracy and speed. This effect is mainly due to the position in the output sequence, not just how information is grouped during study.
Area of Science:
- Cognitive Psychology
- Human Memory
- Experimental Psychology
Background:
- Temporal grouping of items during list presentation influences memory recall.
- Pauses between item groups create distinct temporal chunks, affecting retrieval processes.
Purpose of the Study:
- To determine if temporal grouping's effect on recall is due to serial position or output position.
- To investigate the underlying mechanisms of temporal grouping in memory recall.
Main Methods:
- Comparing forward and backward serial recall tasks.
- Analyzing response times and accuracy across different serial positions.
- Fitting data to temporal distinctiveness-based models.
Main Results:
- Recall accuracy and response times mirrored the temporal pauses between item groups.
- The influence of temporal grouping was stronger based on output position rather than study-phase serial position.
- Findings supported models emphasizing within-chunk positional cueing during recall.
Conclusions:
- Temporal grouping's impact on memory recall is critically dependent on output positional cueing.
- The effect is not solely a result of information chunking during encoding but also retrieval strategies.
- Response suppression plays a role in how temporal grouping influences recall performance.
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