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Do not count too slowly: evidence for a temporal limitation in short-term memory
Simon Grondin1, Vincent Laflamme, Giovanna Mioni
1Université Laval, Québec, Canada, simon.grondin@psy.ulaval.ca.
Psychonomic Bulletin & Review
|October 9, 2014
Summary
This study suggests a limit to how fast we can process information. Counting faster, with shorter intervals between counts, led to more accurate time perception compared to slower counting.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Psychophysics
Background:
- Weber's law in time perception is debated, with some studies showing the Weber fraction increases for longer intervals.
- This increase may indicate a fundamental limit in how efficiently the brain processes temporal information.
Purpose of the Study:
- To investigate if a temporal information-processing limitation affects time perception accuracy.
- To determine if counting pace, influenced by inter-count intervals, impacts temporal accuracy.
Main Methods:
- Participants performed a counting task up to a target number across multiple trials.
- The duration to reach the target was measured.
- Inter-count intervals were systematically varied (800 ms vs. 1600 ms).
Main Results:
- Variability in the time taken to reach the target number was significantly higher with a 1600 ms inter-count interval compared to an 800 ms interval.
- This suggests less precise temporal estimation at slower counting paces.
Conclusions:
- Findings support the existence of a fundamental temporal processing limitation.
- Efficient information processing for time perception may be constrained by interval durations exceeding a certain capacity.
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