Redundancy Structures in Respiratory Control

Author(s):  
George D. Swanson
Keyword(s):  
1984 ◽  
Vol 56 (2) ◽  
pp. 536-539 ◽  
Author(s):  
D. L. Sherrill ◽  
G. D. Swanson

The ventilatory response to changes in alveolar (arterial) CO2 is widely used as an index of respiratory control behavior. Methods for estimating these response slopes should incorporate the possibility that there may be errors in both the independent (partial pressure of CO2) and dependent (ventilation) variables. In a recent paper Daubenspeck and Ogden (J. Appl. Physiol. Respirat. Environ. Exercise Physiol. 45:823–829, 1978) have suggested problems inherent in the traditional technique of reduced major axis and have suggested a more contemporary technique of directional statistics. We have previously analyzed both techniques and developed a method to overcome the problems of reduced major axis and problems inherent in the use of directional statistics. Under the assumption of a bivariate normal distribution, we demonstrate that our slope estimate is similar to the maximum likelihood estimate proposed by Mardia et al. (J. Appl. Physiol.: Respirat. Environ. Exercise Physiol. 54: 309–313, 1983) for this problem. In addition, we demonstrate a bootstrap statistical approach when the distributions are not normally distributed. These concepts are illustrated using O2-CO2 interaction data.


1987 ◽  
Vol 262 (19) ◽  
pp. 9109-9114
Author(s):  
G A Dudley ◽  
P C Tullson ◽  
R L Terjung

1971 ◽  
Vol 119 (553) ◽  
pp. 635-637 ◽  
Author(s):  
A. Orwin

The treatment of phobic states by desensitization is tedious and not always completely successful (Marks, 1969). Recently newer methods claiming improvement in speed and efficacy have been introduced, such as flooding or implosion (for example, Boulougouris et al., 1971) and prolonged exposure (Watson et al., 1971). An approach based on respiratory control which seems to be as effective as other methods and even more rapid in action is described in this short paper.


1966 ◽  
Vol 241 (16) ◽  
pp. 3708-3713
Author(s):  
Eugene C. Weinbach ◽  
Joel Garbus

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