A motion compensation treadmill for untethered wood ants (Formica rufa): evidence for transfer of orientation memories from free-walking training.

A motion compensation treadmill for untethered wood ants (Formica rufa): evidence for transfer of orientation memories from free-walking training.
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一个运动补偿跑步机为untethered木蚁(Formica rufa):证据转移的方向记忆从自由行走训练。

DOI:
10.1242/jeb.228601
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发表时间:
2020-12-22
期刊:
The Journal of experimental biology
影响因子:
--
通讯作者:
Webb B
Webb B
中科院分区:
其他
文献类型:
--
作者:
Goulard R;Buehlmann C;Niven JE;Graham P;Webb B

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昆虫在觅食过程中导航的自然尺度使得在受控条件下进行研究具有挑战性。虚拟现实和轨迹球设置提供了实验控制的视觉环境,同时研究拴系昆虫,但潜在的限制和混乱的拴系激励替代untethered解决方案的发展。在本文中,我们验证了使用的运动补偿器(或“研磨机”),以研究视觉驱动的行为自由移动的木蚁(Formica rufa)。我们展示了这种设置如何允许自然的行走行为,并在很长一段时间内保持觅食的动机。此外,我们表明,蚂蚁能够转移联想和导航记忆从经典的迷宫和竞技场的情况下,我们的跑步机。因此,我们证明了在精确控制的环境中研究生态相关的持续时间(和虚拟距离)的导航行为的可能性,弥合自然和高度控制的实验室实验之间的差距。总结:我们已经开发并验证了一种运动补偿跑步机的木蚁,打开了新的视角,以完全控制的方式在生态相关的时间内研究昆虫的导航行为。
The natural scale of insect navigation during foraging makes it challenging to study under controlled conditions. Virtual reality and trackball setups have offered experimental control over visual environments while studying tethered insects, but potential limitations and confounds introduced by tethering motivates the development of alternative untethered solutions. In this paper, we validate the use of a motion compensator (or ‘treadmill’) to study visually driven behaviour of freely moving wood ants (Formica rufa). We show how this setup allows naturalistic walking behaviour and preserves foraging motivation over long time frames. Furthermore, we show that ants are able to transfer associative and navigational memories from classical maze and arena contexts to our treadmill. Thus, we demonstrate the possibility to study navigational behaviour over ecologically relevant durations (and virtual distances) in precisely controlled environments, bridging the gap between natural and highly controlled laboratory experiments. Summary: We have developed and validated a motion compensating treadmill for wood ants which opens new perspectives to study insect navigation behaviour in a fully controlled manner over ecologically relevant durations.
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