Toward a Psychophysiology of Expertise : Focal Magnetic Gamma Bursts as a Signature of Memory Chunks and the Aptitude of Chess Players

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2006
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Journal of Psychophysiology ; 20 (2006), 4. - pp. 253-258
Abstract
Gamma-band activity (GBA) bursts have been viewed as a signature for ignitions in localized Hebbian cell assemblies and are thought to indicate active memory. Using whole-head magnetoencephalography, we recorded focal bursts of GBA during chess playing. Unlike highly skilled chess grandmasters, with amateur chess players focal gamma bursts prevailed in deeper structures in the region of the medial temporal lobes. This observation is consistent with the interpretation of memory formation in amateur chess players. For the frontal and parietal cortex the relationship was reversed, with more frequent gamma bursts found in chess grandmasters, indicating that the retrieval of chunks from expert memory is based on the recruitment of these neocortical areas. The results suggest the possibility that time-dependent reorganization during the formation of expert memory can be studied in humans and support the theory that the medial temporal lobe and hippocampal formation play a transitional role during the creation of expert memory in the neocortex.
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150 Psychology
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expert memory,chess,giftedness,aptitude,chunks,gamma band
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Cite This
ISO 690AMIDZIC, Ognjen, Hartmut J. RIEHLE, Thomas ELBERT, 2006. Toward a Psychophysiology of Expertise : Focal Magnetic Gamma Bursts as a Signature of Memory Chunks and the Aptitude of Chess Players. In: Journal of Psychophysiology. 20(4), pp. 253-258. Available under: doi: 10.1027/0269-8803.20.4.253
BibTex
@article{Amidzic2006Towar-11241,
  year={2006},
  doi={10.1027/0269-8803.20.4.253},
  title={Toward a Psychophysiology of Expertise : Focal Magnetic Gamma Bursts as a Signature of Memory Chunks and the Aptitude of Chess Players},
  number={4},
  volume={20},
  journal={Journal of Psychophysiology},
  pages={253--258},
  author={Amidzic, Ognjen and Riehle, Hartmut J. and Elbert, Thomas}
}
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