Nonlinear analysis of time series generated by schizophrenic patients -: Measuring the capacity to develop a random rhythm as a test for estimating cognitive-motor dysfunction

被引:17
作者
Hornero, R [1 ]
Alonso, A [1 ]
Jimeno, N [1 ]
Jimeno, A [1 ]
López, M [1 ]
机构
[1] Univ Valladolid, ETS Ingn Telecomunicac, Valladolid 47011, Spain
来源
IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE | 1999年 / 18卷 / 03期
关键词
D O I
10.1109/51.765193
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
Using methods from nonlinear dynamical systems theory, time series generated by 20 schizophrenic patients and 20 age-matched control subjects were analyzed. The chaotic dynamic attractors and the second-order difference plots of the time series were represented, and the correlation dimension and the central tendency measure (CTM) parameter were calculated. Results show that time series generated by schizophrenic patients had a lower complexity and variability than time series generated by control subjects with significant differences.
引用
收藏
页码:84 / 90
页数:7
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