Title |
A common short-term memory retrieval rate may describe many cognitive procedures
|
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Published in |
Frontiers in Human Neuroscience, March 2014
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DOI | 10.3389/fnhum.2014.00126 |
Pubmed ID | |
Authors |
Evie Vergauwe, Nelson Cowan |
Abstract |
We examine the relationship between response speed and the number of items in short-term memory (STM) in four different paradigms and find evidence for a similar high-speed processing rate of about 25-30 items per second (∼35-40 ms/item). We propose that the similarity of the processing rates across paradigms reflects the operation of a very basic covert memory process, high-speed retrieval, that is involved in both the search for information in STM and the reactivation or refreshing of information that keeps it in STM. We link this process to a specific pattern of rhythmic, repetitive neural activity in the brain (gamma oscillations). This proposal generates ideas for research and calls for an integrative approach that combines neuroscientific measures with behavioral cognitive techniques. |
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