کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
931262 1474504 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Entropy changes in brain function
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب رفتاری
پیش نمایش صفحه اول مقاله
Entropy changes in brain function
چکیده انگلیسی

The traditional way of analyzing brain electrical activity, on the basis of electroencephalography (EEG) records, relies mainly on visual inspection and years of training. Although it is quite useful, of course, one has to acknowledge its subjective nature that hardly allows for a systematic protocol. In the present work quantifiers based on information theory and wavelet transform are reviewed. The “relative wavelet energy” provides information about the relative energy associated with different frequency bands present in the EEG and their corresponding degree of importance. The “normalized total wavelet entropy” carries information about the degree of order–disorder associated with a multi-frequency signal response. Their application in the analysis and quantification of short duration EEG signals (event-related potentials) and epileptic EEG records are summarized.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Psychophysiology - Volume 64, Issue 1, April 2007, Pages 75–80
نویسندگان
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