SPONTANEOUS FLUCTUATION IN RATE OF BODY ROCKING: A METHODOLOGICAL NOTE

2008 ◽  
Vol 20 (1) ◽  
pp. 61-65
Author(s):  
P. POHL
Keyword(s):  
Spontaneous Fluctuation

Identification of Features Associated with Flying Phobia in Aircrew

1981 ◽  
Vol 139 (1) ◽  
pp. 38-42 ◽  
Author(s):  
R. C. B. Aitken ◽  
J. A. Lister ◽  
C. J. Main
Keyword(s):  
Family History ◽  
Skin Conductance ◽  
Predictive Value ◽  
Matched Control ◽  
Anxiety Symptoms ◽  
Control Group ◽  
Psychometric Tests ◽  
Matched Control Group ◽  
Spontaneous Fluctuation ◽  
History Of

SummaryThe psychological and physiological features of 20 aircrew consecutively referred for treatment of anxiety symptoms when flying were compared with a matched control group of uncomplaining aircrew. There were no significant differences between the two groups on psychometric tests of personality, though there were differences in skin conductance; the phobics had a higher rate of spontaneous fluctuation, and habituated less to a repeated auditory tone. More of the phobic group worried about their wives and acknowledged childhood and other adulthood phobias; more had a family history of an episode perhaps best described as flying trauma. Many were on an overseas posting when symptoms presented. These few features could correctly classify 85 per cent of the subjects into the phobic or control group. This type of ‘phobic aircrew index’ now requires to be validated prospectively for its predictive value.

Spontaneous Fluctuation between Symmetric and Buckled Dimer Domains of Si(100) at 80 K

1999 ◽  
Vol 38 (Part 1, No. 5A) ◽  
pp. 2904-2909 ◽  
Author(s):  
Kenji Hata ◽  
Tomohiko Kimura ◽  
Yasuyuki Sainoo ◽  
Koji Miyake ◽  
Ryuji Morita ◽  
...  
Keyword(s):  
Spontaneous Fluctuation

Psychophysiological Responses of Schizophrenic Patients to High and Low Expressed Emotion Relatives

1981 ◽  
Vol 138 (1) ◽  
pp. 40-45 ◽  
Author(s):  
David Sturgeon ◽  
Liz Kuipers ◽  
Ruth Berkowitz ◽  
Graham Turpin ◽  
Julian Leff
Keyword(s):  
Skin Conductance ◽  
Expressed Emotion ◽  
Video Tape ◽  
Psychophysiological Responses ◽  
Spontaneous Fluctuation ◽  
Schizophrenic Patients ◽  
Spontaneous Fluctuations ◽  
Made In

SummaryMeasurements of spontaneous fluctuations in skin conductance in 20 acutely ill schizophrenic patients were made in a video-tape studio. Recordings were made initially with the patient talking to an interviewer, then during a video-taped interview conducted with the patient's key relative. The Expressed Emotion (EE) of the patient's key relative had been measured previously. Significant differences in the type of spontaneous fluctuation activity between patients who had low EE and high EE relatives were demonstrated when the relative was present, but not when the relative was absent. The findings were not related to phenothiazine medication.

scholarly journals Spontaneous fluctuation indices of the cardiovagal baroreflex accurately measure the baroreflex sensitivity at the operating point during upright tilt

2013 ◽  
Vol 304 (12) ◽  
pp. R1107-R1113 ◽  
Author(s):  
Christopher E. Schwartz ◽  
Marvin S. Medow ◽  
Zachary Messer ◽  
Julian M. Stewart
Keyword(s):  
Baroreflex Sensitivity ◽  
Open Loop ◽  
Operating Point ◽  
Healthy Individuals ◽  
Baroreflex Function ◽  
Spontaneous Fluctuation ◽  
Neck Pressure ◽  
Pressure Suction ◽  
Operating Points ◽  
Upright Tilt

Spontaneous fluctuation indices of cardiovagal baroreflex have been suggested to be inaccurate measures of baroreflex function during orthostatic stress compared with alternate open-loop methods (e.g. neck pressure/suction, modified Oxford method). We therefore tested the hypothesis that spontaneous fluctuation measurements accurately reflect local baroreflex gain (slope) at the operating point measured by the modified Oxford method, and that apparent differences between these two techniques during orthostasis can be explained by a resetting of the baroreflex function curve. We computed the sigmoidal baroreflex function curves supine and during 70° tilt in 12 young, healthy individuals. With the use of the modified Oxford method, slopes (gains) of supine and upright curves were computed at their maxima ( Gmax) and operating points. These were compared with measurements of spontaneous indices in both positions. Supine spontaneous analyses of operating point slope were similar to calculated Gmax of the modified Oxford curve. In contrast, upright operating point was distant from the centering point of the reset curve and fell on the nonlinear portion of the curve. Whereas spontaneous fluctuation measurements were commensurate with the calculated slope of the upright modified Oxford curve at the operating point, they were significantly lower than Gmax. In conclusion, spontaneous measurements of cardiovagal baroreflex function accurately estimate the slope near operating points in both supine and upright position.

scholarly journals 2P170 Spontaneous fluctuation of membrane potential in Paramecium

2004 ◽  
Vol 44 (supplement) ◽  
pp. S152
Author(s):  
M. Hara ◽  
Y. Nakaoka
Keyword(s):  
Membrane Potential ◽  
Spontaneous Fluctuation
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