کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2565676 | 1128064 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dissociation, cognitive conflict and nonlinear patterns of heart rate dynamics in patients with unipolar depression
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کلمات کلیدی
ACCLLEBDI-IIRRIDissociation - گسستگیHRV - ENGChaos - آشوبDES - ازStress - استرس یا فشار روانیECG - الکتروکاردیوگرام یا نوار قلبDissociative Experiences Scale - تجارب تجزیه مقیاسCognitive conflict - درگیری شناختیLyapunov exponent - نمای لیاپانوفheart rate variability - نوسان ضربان قلبBDI, Beck Depression Inventory - پرسشنامه افسردگی بک
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
روانپزشکی بیولوژیکی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Neuro-Psychopharmacology and Biological Psychiatry - Volume 33, Issue 1, 1 February 2009, Pages 141-145
Journal: Progress in Neuro-Psychopharmacology and Biological Psychiatry - Volume 33, Issue 1, 1 February 2009, Pages 141-145
نویسندگان
Petr Bob, Marek Susta, Alica Gregusova, Denisa Jasova,