Honeybees consolidate navigation memory during sleep
Honeybees consolidate navigation memory during sleep
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DOI：
10.1242/jeb.075499
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发表时间：
2012-11-01
影响因子：
2.8
通讯作者：
Menzel, Randolf
中科院分区：
文献类型：
--
作者：
Beyaert, Lisa;Greggers, Uwe;Menzel, Randolf
众所周知，睡眠有助于动物（包括人类）的记忆巩固。在这里，我们问巩固新的导航记忆蜜蜂依赖于睡眠。觅食暴露于一个强制导航任务，他们学会了更有效地从一个意想不到的释放网站获得导航记忆成功归巢飞行。这项任务量化使用谐波雷达跟踪和应用于蜜蜂，配备了射频识别设备（RFID）。RFID被用于记录它们的出境和入境航班，并持续监测它们在殖民地内的行为，包括它们白天的休息和晚上的睡眠。标有RFID的蜜蜂在蜂巢内外表现正常。蜜蜂在被迫导航任务后的夜间睡眠时间更长，但不同长度的觅食飞行并没有导致白天不同的休息时间或夜间的总睡眠时间。强迫导航任务前的睡眠剥夺并没有改变任务期间获得的学习和记忆。然而，强迫导航学习后的夜间睡眠剥夺降低了从同一释放地点成功返回蜂巢的概率。结论是蜜蜂夜间睡眠促进了新导航记忆的巩固。
Sleep is known to support memory consolidation in animals, including humans. Here we ask whether consolidation of novel navigation memory in honeybees depends on sleep. Foragers were exposed to a forced navigation task in which they learned to home more efficiently from an unexpected release site by acquiring navigational memory during the successful homing flight. This task was quantified using harmonic radar tracking and applied to bees that were equipped with a radio frequency identification device (RFID). The RFID was used to record their outbound and inbound flights and continuously monitor their behavior inside the colony, including their rest during the day and sleep at night. Bees marked with the RFID behaved normally inside and outside the hive. Bees slept longer during the night following forced navigation tasks, but foraging flights of different lengths did not lead to different rest times during the day or total sleep time during the night. Sleep deprivation before the forced navigation task did not alter learning and memory acquired during the task. However, sleep deprivation during the night after forced navigation learning reduced the probability of returning successfully to the hive from the same release site. It is concluded that consolidation of novel navigation memory is facilitated by night sleep in bees.