MODULAR SYSTEM FOR DETECTING AND DISPLAYING PLETHYSMOGRAPHIC BLOOD-VOLUME PULSE AMPLITUDE

被引：3

作者：

COHEN, MJ

SCHANDLER, SL

机构：

[1] UNIV CALIF LOS ANGELES,DEPT PSYCHIAT & BIOBEHAV SCI,LOS ANGELES,CA 90024

[2] CHAPMAN COLL,ORANGE,CA 92666

来源：

PSYCHOPHYSIOLOGY | 1979年 / 16卷 / 01期

关键词：

Blood volume; Instrumentation; Plethysmograph;

D O I：

10.1111/j.1469-8986.1979.tb01447.x

中图分类号：

B84 [心理学];

学科分类号：

04 ; 0402 ;

摘要：

A modular system for detecting and displaying the maximum amplitude of a plethysmographic blood volume pulse is described. By utilizing a peak detector and supporting logic, the height of the pulse wave for each cardiac cycle is displayed as an analogue step function similar in appearance to the output of a cardiotachometer. This output is simpler and faster to quantify than the typical hand‐scoring of blood volume pulse amplitude and is easily adaptable as a feedback medium for pulse wave information. The validity of the new method was ascertained by comparing its output with trough to peak ruler measurements of blood volume pulse during a variety of events. For each stimulus condition correlations between the two methods of scoring ranged from r= .85 to .99 with an average of r = .93 while within subjects correlations ranged from r= .87 to .99 with an average of r= .95. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：80 / 83

页数：4

共 5 条

[1] EMOTIONS AND THE PERIPHERAL VASOMOTOR SYSTEM - A REVIEW OF PREVIOUS WORK [J].