Detailed Information on Publication Record
2009
Dissociation, cognitive conflict and nonlinear patterns of heart rate dynamics in patients with unipolar depression
BOB, Petr, Marek ŠUSTA, Alica GREGUŠOVÁ and Denisa JAŠOVÁBasic information
Original name
Dissociation, cognitive conflict and nonlinear patterns of heart rate dynamics in patients with unipolar depression
Name in Czech
Disociace, kognitivní konflikt a nelineární vzorce v dynamice srdečního rytmu u pacientů s unipolární depresí
Authors
BOB, Petr (203 Czech Republic, guarantor, belonging to the institution), Marek ŠUSTA (203 Czech Republic), Alica GREGUŠOVÁ (203 Czech Republic) and Denisa JAŠOVÁ (203 Czech Republic)
Edition
Progress in Neuro-Psychopharmacology & Biological Psychiatry, USA, 2009, 0278-5846
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30000 3. Medical and Health Sciences
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 2.823
RIV identification code
RIV/00216224:14110/09:00051264
Organization unit
Faculty of Medicine
UT WoS
000263212200025
Keywords (in Czech)
Chaos; kofnitivní konflikt; disociace; EKG; Lyapunův exponent; stres
Keywords in English
Chaos; cognitive conflict; dissociation; ECG; Lyapunov exponent; stress
Tags
International impact
Změněno: 10/4/2012 10:44, Mgr. Michal Petr
V originále
Recent findings in cognitive neuroscience indicate that activation of anterior cingulate cortex (ACC) is related to detecting cognitive conflict. Conflict related ACC activation elicits responses in central autonomic network which can be assessed by psychophysiological measures such as heart rate variability (i.e. beat to beat R-R intervals - RRI). Recent findings in neuroscience also suggest that cognitive conflict is related to specific nonlinear chaotic changes of the signal generated by the neural systems. The present study used Stroop word-colour test as an experimental approach to the study of cognitive conflict in connection with RRI measurement, psychometric measurement of dissociation (DES) and calculation of largest Lyapunov exponents in nonlinear data analysis of RRI time series in 40 patients with unipolar depression and 35 healthy controls. Significant correlation 0.58 (p < 0.01) between largest Lyapunov exponents and DES found in depressive patients indicate that cognitive conflict related neural interference during conflicting Stroop task is closely related to dissociative processes. These results present first supportive evidence that degree of chaos could be related to dissociation.
In Czech
V práci byl u pacientů s unipolární depresí použit Stroopfův test se současnou nelineární analýzou R-R intervalů a psychometricky měřenou disociací jako experimentální přístup ke studiu kognitivního konfliktu
Links
MSM0021622404, plan (intention) |
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1M06039, research and development project |
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