Effet d’une situation d’apnée statique sur les capacités individuelles d’estimation du temps

Jamin, Thibault; Joulia, Fabrice; Fontanari, Pierre; Bonnon, M; Ulmer, Cheryl; Crinon, Jacques

doi:10.1016/s0765-1597(03)00169-2

Cited by 2 publications

(7 citation statements)

References 3 publications

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“…The apnea swimming task was of identical duration but, crucially, was performed under a state of reduced physiological arousal. As movement timing parameters are controlled through reference to the internal clock [39], retention of movement timing parameters may be facilitated under the condition of reduced physiological arousal eliciting a slowing down of the internal clock [38,43]. While the underestimation of MI BREATHE durations might account for the task duration in the case of normal breathing, it may rather relate to the physiological arousal mismatch during MI BREATHE of the apnea swimming task.…”

Section: Discussionmentioning

confidence: 99%

“…For instance, accurate MI duration was associated with higher activation intensities within regions of the brain motor system [75]. As previous work underlined that apnea led to the underestimation of PP duration [38,43], future studies should seek to determine whether correcting the effect of breath holding on MI durations ( i.e., involving biased temporal predictions related to bradycardia amplitude), for instance by providing feedback concerning respect of isochrony with PP after completion of MI, would improve time estimation accuracy. Taken together, present findings might contribute to promote safe apnea practice in the currently developing context of apnea competitions.…”

Section: Discussionmentioning

confidence: 99%

“…Interestingly, a large body of experimental data supports that heartbeats may be the physiological pacemaker of the internal clock in humans [38,40-43]. Namely, humans might non-consciously refer to their own heartbeats to achieve time estimations.…”

Section: Introductionmentioning

confidence: 99%

“…, apnea) at rest is known to decrease heart rate both in air and water environments [38,43,51,52]. Bradycardia occurs in response to water immersion due to cardiovascular and metabolic changes triggered by the mammalian diving reflex [53-56].…”

Section: Introductionmentioning

confidence: 99%

“…Bradycardia occurs in response to water immersion due to cardiovascular and metabolic changes triggered by the mammalian diving reflex [53-56]. In a pioneering study, Jamin et al [43] observed that reduced physiological arousal during breath-holding caused an underestimation of the durations of static apneas by about 20%. According to the authors, bradycardia disturbed the internal clock and impaired time estimation ability.…”

Section: Introductionmentioning

confidence: 99%

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Physiological changes in response to apnea impact the timing of motor representations: a preliminary study

Rienzo

Hoyek

Collet

et al. 2014

Behavioral and Brain Functions

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BackgroundReduced physiological arousal in response to breath-holding affects internal clock processes, leading swimmers to underestimate the time spent under apnea. We investigated whether reduced physiological arousal during static apnea was likely to affect the temporal organization of motor imagery (MI).MethodsFourteen inter-regional to national breath-holding athletes mentally and physically performed two 15 m swimming tasks of identical durations. They performed the two sequences in a counterbalanced order, the first while breathing normally using a scuba, the second under apnea. We assessed MI duration immediately after completion of the corresponding task. Athletes performed MI with and without holding breath.ResultsMI durations (26.1 s ± 8.22) were significantly shorter than actual durations (29.7 s ± 7.6) without holding breath. Apnea increased MI durations by 10% (± 5%). Heart rate decrease in response to breath-holding correlated with MI durations increase (p < .01). Under apnea, participants achieved temporal congruence between MI and PP only when performing MI of the apnea swimming task. Self-report data indicated greater ease when MI was performed in a physiological arousal state congruent with that of the corresponding motor task.ConclusionsPhysiological arousal affected the durations of MI through its effects on internal clock processes and by impacting the congruency in physiological body states between overt and covert motor performance. Present findings have potential implications with regards to the possibility of preventing underestimation of durations spent under a state of reduced physiological arousal.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Physiological changes in response to apnea impact the timing of motor representations: a preliminary study

Rienzo

Hoyek

Collet

et al. 2014

Behavioral and Brain Functions

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Dikkat Mi Nabız Mı: Apne Sürelerinin Tahmin Edilmesinde Yukarıdan Aşağıya ve Aşağıdan Yukarıya Süreçlerin Bütünleştirilmesine Yönelik Bir Ön Çalışma

Alkan

Akış

2023

Spor Bilimleri Dergisi

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Accurate perception of time is vital in some athletic activities such as free-diving performance. The exact mechanisms underlying the correct estimation of long intervals using different time estimation paradigms are still an issue to be solved in psychology. To this end, in the current study, by using a prospective paradigm, examined top-down and bottom-up predictors of 25, 50, and 75 seconds of apnea durations. Eleven free-diving athletes performed the target apnea estimations in two experimental conditions: apnea in the air and immersed apnea. In line with our integrative perspective, we obtained heart rate values, attentional control capacities, and affectivity states of the participants, and analyzed the relationship of these with the directional errors of three target apnea estimations. A series of within-participants analyses found the following: : first, the heart-rate alone is not the only factor influencing time estimation during long intervals; second, attentional capacity and positive affect contributed to the accuracy of time estimation in a non-constant fashion; third, these three variables affected the accuracy of time estimation differently according to the modality and the duration of the target interval; and fourth, the participants were most accurate in estimating the time during 75s. of apnea in the immersed condition.

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Effet d’une situation d’apnée statique sur les capacités individuelles d’estimation du temps

Cited by 2 publications

References 3 publications

Physiological changes in response to apnea impact the timing of motor representations: a preliminary study

Physiological changes in response to apnea impact the timing of motor representations: a preliminary study

Dikkat Mi Nabız Mı: Apne Sürelerinin Tahmin Edilmesinde Yukarıdan Aşağıya ve Aşağıdan Yukarıya Süreçlerin Bütünleştirilmesine Yönelik Bir Ön Çalışma

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