CHAOTIC TIME-SERIES ANALYSES OF EPILEPTIC SEIZURES

被引：146

作者：

FRANK, GW ^{[1
]}

LOOKMAN, T ^{[1
]}

NERENBERG, MAH ^{[1
]}

ESSEX, C ^{[1
]}

LEMIEUX, J ^{[1
]}

BLUME, W ^{[1
]}

机构：

[1] UNIV HOSP LONDON,LONDON N6A 5B9,ONTARIO,CANADA

来源：

PHYSICA D | 1990年 / 46卷 / 03期

关键词：

D O I：

10.1016/0167-2789(90)90103-V

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A number of seizure events, typical of everyday clinical practice, were tested for possible chaos. After a careful elimination of spurious effects, evidence of chaos was found in two seizure events. This was confirmed by direct examination of exponential separation of initially nearby states in low-dimensional trajectory recoveries. The resulting Lyapunov exponent calculation provides a clear indication of chaos in such events, the definitive conclusion of which cannot be made from dimension calculations alone. The weaknesses of these techniques, and strategies for their treatment, are emphasized.

引用

页码：427 / 438

页数：12