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The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
Published on: February 19, 2018
Long-term memory is the representational basis for semantic verbal short-term memory
Katherine A Cameron1, Henk J Haarmann, Jordan Grafman
1Department of Psychology, Washington College, Chestertown, Maryland 21210, USA.
Psychophysiology
|December 21, 2005
Summary
This study shows that semantic activation enhances verbal short-term memory retention. Activated long-term memory representations support this process, suggesting short- and long-term memory stores are not distinct.
Area of Science:
- Cognitive Neuroscience
- Psychology
Background:
- Activation models of verbal short-term memory propose a role for semantic processing.
- Understanding the neural mechanisms of verbal short-term memory is crucial for cognitive science.
Purpose of the Study:
- To investigate the semantic contribution to verbal short-term memory retention.
- To examine the level of semantic activation during memory tasks using event-related brain potentials.
Main Methods:
- Event-related brain potentials (ERPs) were recorded during two tasks: a short-term memory task with a semantic judgment and a nonmemory control task.
- Semantic activation levels were measured during a delay interval following word presentation.
Main Results:
- Semantic activation during the delay interval was significantly higher in the short-term memory task compared to the control task.
- This indicates enhanced activation of semantic representations is integral to short-term verbal information storage.
Conclusions:
- The findings support activation models of verbal short-term memory that incorporate semantic contributions.
- Activated long-term memory provides a representational basis for semantic verbal short-term memory.
- This challenges theories positing separate short- and long-term memory stores.
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