Chaotic approach to the quantitative analysis of Parkinson´s disease

Author

Sugiura, Toshihiko ; Sugiura, Naoto ; Sugiyama, Kenji ; Yokoyama, Tetsuo

Author_Institution

Res. Inst. of Electron., Shizuoka Univ., Hamamatsu, Japan

Volume

3

fYear

1998

fDate

29 Oct-1 Nov 1998

Firstpage

1583

Abstract

A chaotic approach was applied to the quantitative analysis of Parkinson´s disease (PD). Finger tapping tests were performed to analyze the degree of bradykinesia in PD patients. The voltage variation obtained from the tapping tests was sampled at 200 Hz, and the data for 15 seconds were used in the analysis. Sampled data were embedded into the phase space with various combinations of the dimension and delay time. The embedding dimension and the delay time used in this study were 16 and 13, respectively. Fractal dimension of 5 PD patients was calculated in the phase space and compared with those of 5 volunteers

Keywords

biomechanics; chaos; diseases; fractals; medical signal processing; 15 s; 200 Hz; Parkinson´s disease; bradykinesia degree; chaotic approach; delay time; embedded sampled data; finger tapping tests; fractal dimension; patients; phase space; quantitative analysis; voltage variation; volunteers; Capacitive sensors; Chaos; Delay effects; Fingers; Fractals; Parkinson´s disease; Performance evaluation; Strain measurement; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE

Conference_Location

Hong Kong

ISSN

1094-687X

Print_ISBN

0-7803-5164-9

Type

conf

DOI

10.1109/IEMBS.1998.747198

Filename

747198