Unverified80% confidenceDecision RuleTime unknown
电极通道数≥2且覆盖前额（Fp1/Fp2）才能区分深睡、浅睡和REM三阶段；单通道头带只能粗略判断睡眠/清醒，分期准确度明显下降
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80%
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Long-term
Relevance
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Unverified单通道额叶（Fp1/Fp2）脑电设备只能粗略判断清醒/睡眠，无法准确分期深睡/REM；需要精确睡眠分期建议选择≥2个通道且包含枕区或中央区电极的设备89% similarUnverified临床级睡眠分期需要至少3个通道（脑电EEG+眼电EOG+肌电EMG），单通道额头电极的消费级设备只能做粗略睡眠分期，无法准确区分N1/N2/N3期80% similarUnverified追求睡眠分期精度（区分深睡/浅睡/REM）应选带PPG光学心率+加速度计的方案，仅靠体动检测的仪器只能判断睡/醒，分期误差可达30%以上78% similarUnverified睡眠监测的深睡/REM分期准确度取决于是否融合心率变异性(HRV)和体动数据，仅靠加速度计的低端手环深睡数据虚高，参考价值有限76% similarUnverified睡眠阶段（深睡/浅睡/REM）判断精度依赖数据维度：仅靠单一心率/体动的贴片准确率约60-70%，融合呼吸+心率变异（HRV）+体温的多参数贴片可达80%以上，追求阶段准确性应选多参数款76% similar
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