Laboratorio de Neurofisiología de la Conducta Reproductiva, Instituto de Neurociencias, CUCBA, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico.
Laboratorio de Cronobiología y Sueño, Dirección de Investigaciones en Neurociencias, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Mexico City, México.
Am J Primatol. 2021 Jun;83(6):e23257. doi: 10.1002/ajp.23257. Epub 2021 Mar 26.
There is evidence that research on sleep among New World monkeys may provide important knowledge related to the evolution of sleep more broadly in the primate order. Digital electroencephalographic (EEG) analyses provide essential knowledge on sleep in the spider monkey. Recently, specific EEG bands related to sleep in these animals have been obtained using principal component analysis, but the exact spatio-temporal distribution of these EEG bands in this species has not yet been analyzed. This study determined the topographic distribution of the EEG spectral power of ad hoc broad bands during rapid eye movement sleep, nonrapid eye movement sleep, and wakefulness. Superficial EEG activity was obtained from the occipital, frontal, and central areas of six young adult male monkeys housed in a laboratory. During wakefulness, occipital areas showed high absolute power in the 1-3, 3-12, and 11-30 Hz ranges, while during nonrapid eye movement 1 sleep the highest absolute power was in the 13-30 Hz range. During nonrapid eye movement 3 sleep, frontal and central areas showed a high absolute power in the 18-19 Hz range. Finally, the right central area showed a high absolute power in the 20-30 Hz range during rapid eye movement sleep. This topographic distribution of EEG bands could represent the brain organization required for arousal and mnemonic processing during sleep in the spider monkey.
有证据表明，对新世界猴睡眠的研究可能为灵长类动物睡眠的广泛进化提供重要知识。数字化脑电图（EEG）分析为蜘蛛猴的睡眠提供了重要知识。最近，使用主成分分析获得了与这些动物睡眠相关的特定 EEG 波段，但尚未分析这些 EEG 波段在该物种中的精确时空分布。本研究确定了在快速眼动睡眠、非快速眼动睡眠和清醒期间，特有的宽频带 EEG 谱功率的表面分布。从六只居住在实验室的年轻雄性猴子的枕部、额部和中央区域获得了表面 EEG 活动。在清醒状态下，枕部区域在 1-3、3-12 和 11-30 Hz 范围内显示出高的绝对功率，而在非快速眼动睡眠 1 期，最高的绝对功率出现在 13-30 Hz 范围内。在非快速眼动睡眠 3 期，额部和中央区域在 18-19 Hz 范围内显示出高的绝对功率。最后，在快速眼动睡眠期间，右侧中央区域在 20-30 Hz 范围内显示出高的绝对功率。这些 EEG 波段的地形分布可能代表了蜘蛛猴在睡眠中唤醒和记忆处理所需的大脑组织。
