Effects of stimulus position in the respiratory cycle on the evoked cardiac response

Turpin, Graham; Sartory, Gudrun

doi:10.3758/bf03326484

Cited by 12 publications

(1 citation statement)

References 24 publications

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“…Porges argues that, because the respiratory influence on heart rate is mediated by the vagus, the absolute amount of variability in heart rate which occurs in the respiratory frequency band is an index of vagal tone. Furthermore, this same influence was noted by Jennings and Wood (1977) in their cardiac cycle study, and, more recently, has been evaluated by Turpin and Sartory (1980). The latter authors found that phasic cardiac responses (lasting several seconds) were influenced by the respiration phase at stimulus presentation.…”

Section: Resultssupporting

confidence: 73%

The Cardiac Cycle Time Effect: Influence of Respiration Phase and Information Processing Requirements

Coles¹,

Pellegrini²,

Wilson³

1982

Psychophysiology

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The duration of a cardiac cycle can be changed by a stimulus occurring within it. The degree of change depends on the cycle time of the stimulus (Lacey & Lacey, 1977). In three experiments, a warned, twochoice, reaction time task was used to evaluate this cycle time effect. Information delivered by warning and respond stimuli was manipulated by varying the degree to which the former stimulus predicted the latter. Stimuli were presented at delays of between 0 and 600 msec from the 'R' wave, and changes in interbeat interval and respiration phase were assessed for each stimulus. Subjects with slow heart rates showed a cycle time effect (increase in deceleration with delay) for both warning and respond stimuli presented during expiration. For inspiration, no trend was found for respond stimuli; but, for warning stimuli, a paradoxical increase in acceleration with delay was observed. Fast heart rate subjects showed a cycle time effect (decrease in deceleration with delay) for respond stimuli only, but for both respiration phases. Information about response choice, when given either by warning or respond stimuli, led to larger decelerations but this result was only significant when data for conditions associated with maximal deceleration were considered. Results are discussed in terms of the role of vagal activity in mediating the cycle time effect.

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Section: Resultssupporting

confidence: 73%

The Cardiac Cycle Time Effect: Influence of Respiration Phase and Information Processing Requirements

Coles¹,

Pellegrini²,

Wilson³

1982

Psychophysiology

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Cardiac-Respiratory Integration: Implications for the Analysis and Interpretation of Phasic Cardiac Responses

Turpin¹

1986

Cardiorespiratory and Cardiosomatic Psychophysiology

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Effects of auditory stimulus timing in the respiratory cycle on the evoked cardiac response in man at rest

Warzel

Krell

1984

Europ. J. Appl. Physiol.

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The present experiments were carried out in 21 healthy adults to study the effects of auditory stimulus timing within the respiratory cycle on evoked cardiac response. The stimulus (80 dB white noise) was started by the first and finished by the second R-wave after change in respiratory phase, and presented in different series in either early inspiration or early expiration. The spirogram and eight sequential interbeat intervals (IBI) after respiratory phase change were recorded. The mean of IBI and standard deviation (SD) were calculated separately for each IBI of 20 trials for each subject, during both the prestimulus and poststimulus phases. The stimulus effects were expressed as changes from prestimulus conditions, in terms of delta IBI and delta SD. The mean of each of the eight IBI and its SD were found to vary consistently in the same direction, i.e., SD increased with increasing mean IBI. Stimulation during early inspiration did not produce any effect during this respiratory phase. It was not before the beginning of the following expiration that a significant deceleration was evoked, which was associated with an enhanced delta SD, whereas stimulation during early expiration promptly evoked a biphasic cardiac response of the deceleration - acceleration pattern and an increase and decrease in delta SD, respectively. While SD was found to be a function of age, no such finding was obtained for delta IBI and delta SD. These results are discussed in terms of the "vagal gating" hypothesis.

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Effects of stimulus position in the respiratory cycle on the evoked cardiac response

Cited by 12 publications

References 24 publications

The Cardiac Cycle Time Effect: Influence of Respiration Phase and Information Processing Requirements

The Cardiac Cycle Time Effect: Influence of Respiration Phase and Information Processing Requirements

Cardiac-Respiratory Integration: Implications for the Analysis and Interpretation of Phasic Cardiac Responses

Effects of auditory stimulus timing in the respiratory cycle on the evoked cardiac response in man at rest

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