Abstract

Introduction

The ability to adapt actions to perceptions of environmental constraints, perception-action coupling, may be compromised by military operational stress (caloric restriction, sleep disruption, physical exertion). Differences in sleep may influence susceptibility to these stressors. We investigated perception-action coupling during simulated military operational stress and the influence of sleep on perception-action coupling.

Methods

During a 5-day simulated military operational stress protocol, thirty-six (6 female) service members (25.8 ± 4.7 years) completed three trials of a perception-action coupling task (PACT) in the evening after a night of baseline sleep (BASE), two nights of sleep restriction (T1) and a night of recovery sleep (T2). Participants had 8-hr for baseline and recovery sleep (2300-0700) and 4-hr disturbed sleep on sleep restriction nights (0100-0300 and 0500-0700). Polysomnography was used to determine time spent in different sleep stages: stage 2 (N2), slow wave (SWS) and rapid-eye movement (REM). The tablet-based PACT requires participants make quick, accurate perceptual judgments and responses about the ability of virtual balls to fit through virtual apertures. Linear mixed models were used to assess interaction and main effects of study day and prior sleep on PACT response time (RT) and accuracy (ACC).

Results

No significant sleep x time interactions or significant main effect of time were found for RT or ACC. A significant main effect of SWS was found for RT (F_1,88.307 = 4.331, p = .04). Higher SWS was related to lower (faster) RT. No significant main effects of other sleep stages were found.

Conclusion

Perception-action coupling was maintained during simulated military operational stress. Participants with more SWS across the study responded faster during the PACT but N2 and REM sleep did not relate to perception-action coupling performance, suggesting a specific effect of SWS on perception-action coupling abilities and behaviors.

Support

Department of Defense Award #W81XWH-17-2-0070 (PI: Nindl)

中文翻译：

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0242有效的知觉-动作耦合与军事人员的慢波睡眠有关

摘要

介绍

军事行动压力（热量限制，睡眠中断，体力消耗）可能会损害使行动适应环境约束的感知，感知－行动耦合的能力。睡眠差异可能会影响这些压力源的易感性。我们调查了模拟军事行动压力下的知觉-动作耦合以及睡眠对知觉-动作耦合的影响。

方法

在为期5天的模拟军事行动压力协议中，三十六名（6名女性）服役人员（25.8±4.7岁）在基准睡眠后的晚上（BASE ），两个晚上的睡眠限制（T1）和一个恢复睡眠的夜晚（T2）。在限制睡眠的夜晚（0100-0300和0500-0700），参与者有8个小时的基准睡眠和恢复睡眠（2300-0700）和4个小时的睡眠受干扰。多导睡眠图用于确定在不同睡眠阶段所花费的时间：第2阶段（N2），慢波（SWS）和快速眼动（REM）。基于平板电脑的PACT要求参与者对虚拟球穿过虚拟孔的能力做出快速，准确的感知判断和响应。

结果

对于RT或ACC，未发现明显的睡眠x时间相互作用或明显的时间主效应。发现SWS对RT有明显的主要作用（F _1,88.307 = 4.331，p = .04）。较高的SWS与较低（更快）的RT有关。没有发现其他睡眠阶段的显着主要影响。

结论

在模拟的军事行动压力下，感知-动作耦合得以维持。在研究期间，具有较多SWS的参与者在PACT期间反应更快，但是N2和REM睡眠与知觉-动作耦合性能无关，这表明SWS对知觉-动作耦合能力和行为的特定影响。

支持

国防部奖＃W81XWH-17-2-0070（PI：Nindl）