File:Development-of-grouped-icEEG-for-the-study-of-cognitive-processing-Video1.ogv
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DescriptionDevelopment-of-grouped-icEEG-for-the-study-of-cognitive-processing-Video1.ogv |
English: Intracranial recordings provide unparalleled insights into rapidly evolving patterns of cortical activity across distributed neural substrates. Electrocorticographic movies of grouped percent change in high-frequency broadband gamma activity (BGA; 60–120 Hz; n = 27 subject) during a face and place-naming task are visualized on the N27 cortical surface model. Hotter colors denote an increase in mid-gamma band power, while cooler colors denote a decrease (color-scale ranges from −50 to 50% change). The movie begins 100 ms before stimulus onset and continues until 700 ms after stimulus onset, in 5 ms steps (stimulus onset at 0 ms). Notably, for face stimuli (left surface) increases in BGA are localized to the lateral aspect of the mid-fusiform sulcus. In contrast, place stimuli produce more widespread activations in the medial aspects of the fusiform gyrus.
Français : Les enregistrements intracrâniens fournissent des aperçus inégalés des modèles d'activité corticale évoluant rapidement dans les réseaux neuraux distribués. L'image électrocorticographique montre ici les changement d'activité exprimés en pourcentage d'activité gamma à large bande à haute fréquence (BGA, 60-120 Hz) à partir de 27 sujets) pour une tâche consistant à reconnaitre un visage ; Les couleurs chaudes montrent une augmentation d'activité dans la bande gamma moyenne, les couleurs froides traduisent une diminution d'activité (l'échelle des couleurs varie de -50 à + 50%). Le film commence 100 ms avant le début du stimulus et se poursuit jusqu'à 700 ms après le début du stimulus, par pas de 5 ms (début du stimulus à 0 ms). Notamment, pour les stimuli du visage (surface gauche), les augmentations de BGA sont localisées à l'aspect latéral du sulcus mi-fusiforme. En revanche, les stimuli de la photo d'un monument (tour eiffel) produisent des activations plus étendues dans les aspects médiaux du gyrus fusiforme |
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Source | Movie 1 from Kadipasaoglu C, Forseth K, Whaley M, Conner C, Rollo M, Baboyan V, Tandon N (2015). "Development of grouped icEEG for the study of cognitive processing". Frontiers in Psychology. DOI:10.3389/fpsyg.2015.01008. PMID 26257673. PMC: 4508923. | ||
Author | Kadipasaoglu C, Forseth K, Whaley M, Conner C, Rollo M, Baboyan V, Tandon N | ||
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This file is licensed under the Creative Commons Attribution 4.0 International license.
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current | 22:22, 12 August 2015 | 30 s, 1,799 × 754 (6.22 MB) | Open Access Media Importer Bot (talk | contribs) | Automatically uploaded media file from Open Access source. Please report problems or suggestions here. |
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Author | Kadipasaoglu C, Forseth K, Whaley M, Conner C, Rollo M, Baboyan V, Tandon N |
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Usage terms | http://creativecommons.org/licenses/by/4.0/ |
Image title | Intracranial recordings provide unparalleled insights into rapidly evolving patterns of cortical activity across distributed neural substrates. Electrocorticographic movies of grouped percent change in high-frequency broadband gamma activity (BGA; 60–120 Hz; n |
Software used | |
Date and time of digitizing | 2015-07-21 |
Language | English |