Patent Number: 6,167,299

Title: Method for recording skin galvanic reactions and device for realizing the same

Abstract: In the field of medicine and medical engineering, in particular to methods and devices for diagnostics of the status of an alive organism basing on skin electrical conductivity, a method and device for monitoring galvanic skin reactions is usable in experimental and clinical medicine, as well as in psychophysiology, pedagogics and sports medicine. The device enables to eliminate interference caused by artifacts of a subject's movements as well as interference brought about by non-biological causes (various electrical noises and equipment drift). The method is featured by the fact that the shape of each pulse of the sequence of pulses is being analyzed in the phasic component frequency band. For this purpose monitored are the first and the second derivatives in time of the logarithm of skin electric conductivity. The value of the trend brought about by the tonic component is determined, and the value of the first derivative is adjusted through subtraction of the trend value from it. Further, the time of the onset of the first derivative pulse is determined as the moment of the second derivative exceeding a threshold value, and then the shape of said pulse is analyzed. The analysis of the pulse shape could be carried out either by hardware or by software method. Should the parameters of this shape meet certain preset criteria, the analyzed pulse is classified as a pulse of the phasic component, otherwise it is put down to artifacts. Two devices for galvanic skin reaction monitoring are described.

Inventors: Galchenkov; Leonid Arkad'evich (Moscow, RU), Dementienko; Valery Vasiljevich (Moscow, RU), Koreneva; Lidyja Georgievna (Moscow, RU), Markov; Andrey Genrikhovich (Moscow, RU), Shakhnarovich; Vjacheslav Markovich (Moscow, RU)

Assignee: Zakrytoe Aktsionernoe Obschestvo "Neurocom"

International Classification: A61B 5/053 (20060101); A61N 1/06 (20060101); A61B 5/16 (20060101); A61B 005/05 ()

Expiration Date: 12/26/2013