The effect of visual and auditory stimuli upon resting ventilation in man
| Autor: | Abraham Guz, Steven Shea, J. Walter, Kevin Murphy, C. Pelley |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Pulmonary and Respiratory Medicine
Adult Male Analysis of Variance Respiratory rate Physiology Respiration Rest Electroencephalography Electrooculography Breathing pattern Acoustic Stimulation Auditory stimulation Control of respiration Anesthesia Breathing Auditory stimuli Humans Wakefulness Female Analysis of variance Psychology Lung Photic Stimulation |
| Zdroj: | Respiration physiology. 68(3) |
| ISSN: | 0034-5687 |
| Popis: | We have quantified the effect of visual, and auditory stimulation upon the breathing pattern in resting healthy man. Only noninvasive instrumentation was used. For the visual experiment we studied 36 subjects in each of three conditions: relaxed wakefulness with eyes closed (EC); with eyes open and directed at a white screen (EO); and whilst reading a standardised text (R). For the auditory experiment we studied 18 subjects under three analogous situations: no auditory input(N); listening to white noise(W); and listening to a story (V). In each study, all subjects underwent four replications (over two days) of one of the six permutations of the three experimental conditions; each condition lasted 5 min. A balanced analysis of variance on IO 368 breaths showed that, from baseline EC, both EO and R significantly increased respiratory frequency and ventilation by approximately 6%. Using 5184 breaths in the auditory study the analysis showed qualitatively similar results between analogous situations. The results demonstrate the importance of defining the conditions under which resting VI is measured. Control of breathing; Pattern of breathing; Rest; Ventilation Bulow (1963) has shown that drowsiness in man is characterised by a decreased ventilation and Asmussen (1977) has shown that merely opening the eyes to read can significantly increase ventilation. Due to the inherent variability of breathing at rest, these changes are necessarily dependent upon the criteria used for the baseline measurements during relaxed wakefulness. Phelps et |
| Databáze: | OpenAIRE |
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