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Effects of generation on immediate memory span and delayed unexpected free recall
R Schweickert1, M A McDaniel, G Riegler
1Department of Psychological Sciences, Purdue University, West Lafayette, IN 47907.
Summary
Generating words from fragments improves long-term memory but reduces immediate memory span. This occurs because word generation slows speaking rate, impacting memory span differently than long-term recall.
Area of Science:
- Cognitive Psychology
- Psycholinguistics
- Memory Research
Background:
- Understanding how word generation impacts cognitive processes like memory and speech production is crucial.
- Previous research indicates word length affects memory span and speaking rate.
Purpose of the Study:
- To investigate the effects of generating words from fragments on pronunciation time, immediate memory span, and delayed free recall.
- To determine if generation effects on memory are moderated by word length and speaking rate.
Main Methods:
- Participants read long and short words aloud or generated them from letter strings with missing elements.
- Pronunciation time, immediate memory span, and delayed free recall were measured for both conditions.
Main Results:
- Word length and generation condition had multiplicative effects on speaking rate.
- Memory span was shorter for generated words compared to read words.
- Generation significantly improved delayed free recall, indicating enhanced long-term memory.
Conclusions:
- Generating words from fragments enhances long-term memory but impairs immediate memory span.
- The negative impact on memory span is attributed to the slowing of speaking rate during word generation.
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