Document Type
Article
Date
2003
Keywords
Gamma oscillations, iEEG, Working memory, Brain mapping
Language
English
Disciplines
Neuroscience and Neurobiology | Psychology
Description/Abstract
Functional imaging of human cortex implicates a diverse network of brain regions supporting working memory—the capacity to hold and manipulate information for short periods of time. Although we are beginning to map out the brain networks supporting working memory, little is known about its physiological basis. We analyzed intracranial recordings from two epileptic patients as they performed a working memory task. Spectral analyses revealed that, in both patients, gamma (30-60 Hz) oscillations increased approximately linearly with memory load, tracking closely with memory load over the course of the trial. This constitutes the first evidence that gamma oscillations, widely implicated in perceptual processes, support the maintenance of multiple items in working memory.
Recommended Citation
Howard, Marc W.; Rizzuto, Daniel S.; Caplan, Jeremy B.; Madsen, Joseph R.; and Lisman, John, "Gamma oscillations correlate with working memory load in humans" (2003). Psychology - All Scholarship. 2.
https://surface.syr.edu/psy/2
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
