Neural generators of psychogenic seizures: Evidence from intracranial and extracranial brain recordings
(2014) In Epilepsy & Behavior 31. p.381-385- Abstract
- Psychogenic seizures (PSs) convincingly mimic seizure phenomena but with no underlying epileptic activity. However, not much is known about their neurophysiological basis. We had the rare opportunity to analyze intracranial brain recordings of PSs occurring besides epileptic seizures (ESs), which identified distinct frequency changes over the parietal cortex. For further validation, we applied topographic frequency analysis to two other patients who presented PSs and ESs during long-term monitoring. The analysis revealed a power decrease in the theta band at the posterior parietal cortex in all three patients during PSs but not during ESs. These changes may reflect disturbed self-referential processing associated with some PSs. (C) 2013... (More)
- Psychogenic seizures (PSs) convincingly mimic seizure phenomena but with no underlying epileptic activity. However, not much is known about their neurophysiological basis. We had the rare opportunity to analyze intracranial brain recordings of PSs occurring besides epileptic seizures (ESs), which identified distinct frequency changes over the parietal cortex. For further validation, we applied topographic frequency analysis to two other patients who presented PSs and ESs during long-term monitoring. The analysis revealed a power decrease in the theta band at the posterior parietal cortex in all three patients during PSs but not during ESs. These changes may reflect disturbed self-referential processing associated with some PSs. (C) 2013 Elsevier Inc. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4318521
- author
- Arzy, Shahar ; Halje, Pär LU ; Schechter, Daniel S. ; Spinelli, Laurent ; Seeck, Margitta and Blanke, Olaf
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Psychogenic seizures, Frequency analysis, Intracranial recording, Theta, rhythm, EEG
- in
- Epilepsy & Behavior
- volume
- 31
- pages
- 381 - 385
- publisher
- Elsevier
- external identifiers
-
- wos:000330192700068
- scopus:84892992408
- pmid:24210459
- ISSN
- 1525-5069
- DOI
- 10.1016/j.yebeh.2013.10.017
- language
- English
- LU publication?
- yes
- id
- 4573b000-ff8e-4a92-8856-cfb0b590729a (old id 4318521)
- date added to LUP
- 2016-04-01 09:58:23
- date last changed
- 2022-01-25 18:32:26
@article{4573b000-ff8e-4a92-8856-cfb0b590729a,
abstract = {{Psychogenic seizures (PSs) convincingly mimic seizure phenomena but with no underlying epileptic activity. However, not much is known about their neurophysiological basis. We had the rare opportunity to analyze intracranial brain recordings of PSs occurring besides epileptic seizures (ESs), which identified distinct frequency changes over the parietal cortex. For further validation, we applied topographic frequency analysis to two other patients who presented PSs and ESs during long-term monitoring. The analysis revealed a power decrease in the theta band at the posterior parietal cortex in all three patients during PSs but not during ESs. These changes may reflect disturbed self-referential processing associated with some PSs. (C) 2013 Elsevier Inc. All rights reserved.}},
author = {{Arzy, Shahar and Halje, Pär and Schechter, Daniel S. and Spinelli, Laurent and Seeck, Margitta and Blanke, Olaf}},
issn = {{1525-5069}},
keywords = {{Psychogenic seizures; Frequency analysis; Intracranial recording; Theta; rhythm; EEG}},
language = {{eng}},
pages = {{381--385}},
publisher = {{Elsevier}},
series = {{Epilepsy & Behavior}},
title = {{Neural generators of psychogenic seizures: Evidence from intracranial and extracranial brain recordings}},
url = {{http://dx.doi.org/10.1016/j.yebeh.2013.10.017}},
doi = {{10.1016/j.yebeh.2013.10.017}},
volume = {{31}},
year = {{2014}},
}