Self-paced working memory: Validation of verbal variations of the n-back paradigm
| Autor: | Kathryn M. McMillan, Suzanne T. Witt, M. Elizabeth Meyerand, Angela R. Laird |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male Time Factors Verbal learning Article Task (project management) Reference Values Humans Molecular Biology Cerebral Cortex n-back Brain Mapping Working memory General Neuroscience Cognition Verbal Learning Memory Short-Term Pattern Recognition Visual Frontal lobe Identity (object-oriented programming) Female Neurology (clinical) Verbal memory Psychology Developmental Biology Cognitive psychology |
| Zdroj: | Brain Research. 1139:133-142 |
| ISSN: | 0006-8993 |
| DOI: | 10.1016/j.brainres.2006.12.058 |
| Popis: | Self-paced versions of many paradigms could have utility in probing cognitive systems. To validate several self-paced n-back paradigms, fourteen subjects performed four variations of the working memory task using visually presented letters as stimuli. Several areas in the frontal lobe, the anterior cingulate and a parietal network were consistently activated in the four variations: identity of black letters, location of black letters, color of colored letters and identity of colored letters. Since the n-back task is one of the more popular methods of investigating working memory, we validated the utility of several self-paced versions in normal subjects via quantitative, coordinate-based meta-analyses. The self-paced results agree well with meta-analyses and other published results, giving confidence that a self-paced n-back paradigm is robust in multiple variations. Behavioral results differ from other published reports, perhaps offering insight into true working memory strategy in normal subjects. |
| Databáze: | OpenAIRE |
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