Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition.
Oscillators and servomechanisms in orientation and navigation, and sometimes in cognition.
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DOI:
10.1098/rspb.2022.0237
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发表时间:
2022-05-11
影响因子:
4.7
通讯作者:
Cheng, Ken
中科院分区:
文献类型:
--
作者:
Cheng, Ken
Navigational mechanisms have been characterized as servomechanisms. A navigational servomechanism specifies a goal state to strive for. Discrepancies between the perceived current state and the goal state specify error. Servomechanisms adjust the course of travel to reduce the error. I now add that navigational servomechanisms work with oscillators, periodic movements of effectors that drive locomotion. I illustrate this concept selectively over a vast range of scales of travel from micrometres in bacteria to thousands of kilometres in sea turtles. The servomechanisms differ in sophistication, with some interrupting forward motion occasionally or changing travel speed in kineses and others adjusting the direction of travel in taxes. I suggest that in other realms of life as well, especially in cognition, servomechanisms work with oscillators.
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