Abstract:
:We found that phase cone clustering patterns in EEG ripple bands demonstrate an increased turnover rate in epileptogenic zones compared to adjacent regions. We employed 256 channel EEG data collected in four adult subjects with refractory epilepsy. The analysis was performed in the 80-150 and 150-250 Hz ranges. Ictal onsets were documented with intracranial EEG recordings. Interictal scalp recordings, free of epileptiform patterns, of 240-s duration, were selected for analysis for each subject. The data was filtered, and the instantaneous phase was extracted after the Hilbert transformation. Spatiotemporal contour plots of the unwrapped instantaneous phase with 1.0 ms intervals were constructed using a montage layout of the 256 electrode positions. Stable phase cone patterns were selected based on criteria that the sign of spatial gradient did not change for a minimum of three consecutive time samples and the frame velocity was consistent with known propagation velocities of cortical axons. These plots exhibited increased dynamical formation and dissolution of phase cones in the ictal onset zones, compared to surrounding cortical regions, in all four patients. We believe that these findings represent markers of abnormally increased cortical excitability. They are potential tools that may assist in localizing the epileptogenic zone.
journal_name
Front Hum Neuroscijournal_title
Frontiers in human neuroscienceauthors
Ramon C,Holmes MDdoi
10.3389/fnhum.2020.615744subject
Has Abstractpub_date
2020-12-23 00:00:00pages
615744issn
1662-5161journal_volume
14pub_type
杂志文章abstract::Cooperation and competition are two ways of social interaction keys to life in society. Recent EEG-based hyperscanning studies reveal that cooperative and competitive interactions induce an increase in interbrain coupling. However, whether this interbrain coupling effect is just a reflection of inter-subject motor coo...
journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
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abstract::The Featurally Underspecified Lexicon (FUL) theory predicts that [coronal] is the language universal default place of articulation for phonemes. This assumption has been consistently supported with adult behavioral and event-related potential (ERP) data; however, this underspecification claim has not been tested in de...
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journal_title:Frontiers in human neuroscience
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2014.01030
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2017.00356
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章,评审
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更新日期:2016-11-29 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2017.00184
更新日期:2017-04-12 00:00:00
abstract::In this study, we investigated the combined effect of transcranial direct current stimulation (tDCS) and an intensive Conversational therapy treatment on discourse skills in 12 persons with chronic aphasia. Six short video clips depicting everyday life contexts were prepared. Three videoclips were used to elicit spont...
journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2013.00539
更新日期:2013-09-06 00:00:00
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journal_title:Frontiers in human neuroscience
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doi:10.3389/neuro.09.019.2009
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2017.00350
更新日期:2017-07-05 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2013.00608
更新日期:2013-10-10 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2019.00008
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2013.00431
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journal_title:Frontiers in human neuroscience
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journal_title:Frontiers in human neuroscience
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章,评审
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更新日期:2014-11-04 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2020.00267
更新日期:2020-07-10 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2017.00007
更新日期:2017-02-01 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2018.00059
更新日期:2018-02-15 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2011.00050
更新日期:2011-05-27 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2013.00791
更新日期:2013-11-15 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
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更新日期:2016-08-30 00:00:00
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journal_title:Frontiers in human neuroscience
pub_type: 杂志文章
doi:10.3389/fnhum.2015.00017
更新日期:2015-01-29 00:00:00