Department of Neuroscience, Uppsala University, Uppsala, Sweden.
Curr Opin Neurobiol. 2012 Apr;22(2):272-8. doi: 10.1016/j.conb.2011.12.013. Epub 2012 Jan 12.
Despite being equipped with low-resolution eyes and tiny brains, many insects show exquisite abilities to detect and pursue targets even in highly textured surrounds. Target tracking behavior is subserved by neurons that are sharply tuned to the motion of small high-contrast targets. These neurons respond robustly to target motion, even against self-generated optic flow. A recent model, supported by neurophysiology, generates target selectivity by being sharply tuned to the unique spatiotemporal profile associated with target motion. Target neurons are likely connected in a complex network where some provide more direct output to behavior, whereas others serve an inter-regulatory role. These interactions may regulate attention and aid in the robust detection of targets in clutter observed in behavior.
尽管昆虫的眼睛分辨率低，大脑也很小，但它们仍表现出了极其出色的检测和追逐目标的能力，即使在高度复杂的环境中也是如此。目标跟踪行为是由对小的高对比度目标运动高度敏感的神经元支持的。这些神经元对目标运动有强烈的反应，即使是在与自身产生的光流对抗的情况下也是如此。最近的一个神经生理学模型支持的模型通过对与目标运动相关的独特时空模式进行高度调谐来产生目标选择性。目标神经元可能连接在一个复杂的网络中，其中一些神经元为行为提供更直接的输出，而另一些则起调节作用。这些相互作用可能调节注意力，并有助于在行为中观察到的杂乱无章的目标中稳健地检测到目标。
