A Study of Long-range Correlations in Schizophrenia EEG using Detrended Fluctuation Analysis
Data(s) |
2010
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Resumo |
In this paper, we have studied electroencephalogram (EEG) activity of schizophrenia patients, in resting eyes closed condition, with detrended fluctuation analysis (DFA). The DFA gives information about scaling and long-range correlations in time series. We computed DFA exponents from 30 scalp locations of 18 male neuroleptic-naIve, recent-onset schizophrenia (NRS) subjects and 15 healthy male control subjects. Our results have shown two scaling regions in all the scalp locations in all the subjects, with different slopes, corresponding to two scaling exponents. No significant differences between the groups were found with first scaling exponent (short-range). However, the second scaling exponent (long-range) were significantly lower in control subjects at all scalp locations (p<0.05, Kruskal-Wallis test). These findings suggest that the long-range scaling behavior of EEG is sensitive to schizophrenia, and this may provide an additional insight into the brain dysfunction in schizophrenia. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/36374/1/A_Study.pdf Raghavendra, BS and Narayana D, Dutt (2010) A Study of Long-range Correlations in Schizophrenia EEG using Detrended Fluctuation Analysis. In: International Conference on Signal Processing and Communications, JUL 18-21, 2010, Indian Inst Sci, Bangalore, INDIA. |
Publicador |
IEEE |
Relação |
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5560539 http://eprints.iisc.ernet.in/36374/ |
Palavras-Chave | #Electrical Communication Engineering |
Tipo |
Conference Paper PeerReviewed |