BOB, Petr and Marek ŠUSTA. Chaotic EEG patterns during recall of stressfull memory related to panic attack. Physiological Research. 2006, vol. 55, No 1. ISSN 0862-8408.
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Basic information
Original name Chaotic EEG patterns during recall of stressfull memory related to panic attack
Name in Czech Chaotické vzory EEG při panické atace
Name (in English) Chaotic EEG patterns during recall of stressfull memory related to panic attack
Authors BOB, Petr (203 Czech Republic) and Marek ŠUSTA (203 Czech Republic, guarantor).
Edition Physiological Research, 2006, 0862-8408.
Other information
Original language Czech
Type of outcome Article in a journal
Field of Study 30000 3. Medical and Health Sciences
Country of publisher Czech Republic
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 2.093
Organization unit Faculty of Social Studies
UT WoS 000243996600013
Keywords in English Memory;Panic disorder; Phobia; Stress; EEG; Lyapunov exponent; Chaos
Tags chaos, EEG, lyapunov exponent, memory, panic disorder, phobia, stress
Tags International impact, Reviewed
Changed by Changed by: Marek Šusta, Ph.D., MBA, učo 195570. Changed: 18/12/2006 18:53.
Abstract
Chaotic transitions likely emerge in a wide variety of cognitive phenomena and may be linked to specific changes during the development of mental disorders. They represent relatively short periods in the behavior of a system, which are extremely sensitive to very small changes. This increased sensitivity has been suggested to occur also during retrieval of stressful emotional experiences because of their fragmentary, temporally and spatially disorganized character. To test this hypothesis we recorded EEG during retrieval of fearful memories related to panic attack in 7 patients and retrieval of anxiety-related memories in 11 healthy controls. Nonlinear data analysis of EEG records showed a statistically significant increase in degree of chaotic dynamics after retrieval of stressful memories in majority of patients as well as in control subjects. This change correlated with subjective intensity of anxiety induced during the memory retrieval. The data suggest a role of nonlinear changes of neural dynamics in the processing of stressful anxiety-related memories, which may play an important role in the pathophysiology of panic disorder.
Abstract (in English)
Chaotic transitions likely emerge in a wide variety of cognitive phenomena and may be linked to specific changes during the development of mental disorders. They represent relatively short periods in the behavior of a system, which are extremely sensitive to very small changes. This increased sensitivity has been suggested to occur also during retrieval of stressful emotional experiences because of their fragmentary, temporally and spatially disorganized character. To test this hypothesis we recorded EEG during retrieval of fearful memories related to panic attack in 7 patients and retrieval of anxiety-related memories in 11 healthy controls. Nonlinear data analysis of EEG records showed a statistically significant increase in degree of chaotic dynamics after retrieval of stressful memories in majority of patients as well as in control subjects. This change correlated with subjective intensity of anxiety induced during the memory retrieval. The data suggest a role of nonlinear changes of neural dynamics in the processing of stressful anxiety-related memories, which may play an important role in the pathophysiology of panic disorder.
Links
1M06039, research and development projectName: Centrum pro neuropsychiatrický výzkum traumatického stresu
Investor: Ministry of Education, Youth and Sports of the CR
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