The time series 2127-2_1.dat is the essential tremor
and 1937-1_1.dat is the Parkinsonian tremor time series
analyzed in the paper: Timmer J., Haeussler S., Lauk M., Luecking C.H.: 
Pathological tremors: Deterministic chaos or nonlinear stochastic 
oscillators ? Chaos 10 , 2000, 278-288 which is available at:
http://phym1.physik.uni-freiburg.de/~jeti/papers/path_tremors.ps.gz 

A complete description of the tremor project is given at:
http://www.fdm.uni-freiburg.de/User/lauk/tremor/tremor_en.html


Additional essential tremor time series are (original name, actual name):
2127-2_1.dat et05.dat 
2098-2_1.dat et04.dat 
1867-2_4.dat et03.dat 
1737-2_4.dat et02.dat
1618-2_1.dat et01.dat 


Additional Parkinsonian tremor time series are (original name, actual name):

1937-1_1.dat park01.dat 
1948-1_1.dat park02.dat 
1965-2_4.dat park03.dat 
2111-1_4.dat park04.dat
2296-1_1.dat park05.dat    

Apart from (1618-2_1.dat et01.dat), all time series 
are sampled for 30 sec with 1000 Hz. 
(1618-2_1.dat et01.dat) is sampled with 300 Hz (only for
historical reasons).

Please send me an e-mail if you use this data anyhow.
Jens Timmer: jeti@fdm.uni-freiburg.de