Shared strategies for behavioral switching: understanding how locomotor patterns are turned on and off
Shared strategies for behavioral switching: understanding how locomotor patterns are turned on and off
复制标题
DOI：
10.3389/fnbeh.2010.00049
复制
发表时间：
2010-01-01
影响因子：
3
通讯作者：
Pierce-Shimomura, Jonathan T.
中科院分区：
文献类型：
--
作者：
Mesce, Karen A.;Pierce-Shimomura, Jonathan T.
动物经常从一种行为切换到另一种行为，通常是为了满足不断变化的环境或内部状态的需求。是什么因素控制着这些行为的转变，以及选择做什么或不做什么？为了解决这些问题，我们将集中在两个遥远的相关的“蠕虫”，药用水蛭水蛭verbana（分支Lophotrochozoa）和线虫秀丽隐杆线虫（分支Ecdysozoa）的运动行为。虽然这些生物的神经结构和身体形态非常不同，但它们似乎通过使用类似的决策策略在不同形式的运动之间切换。例如，区分液体和固体环境的信息决定了动物是游泳还是爬行。在水蛭中，多巴胺会偏向运动神经网络，从而开启爬行，关闭游泳。In C.多巴胺还可能促进爬行，这是一种新的运动形式，已引起人们的注意。
Animals frequently switch from one behavior to another, often to meet the demands of their changing environment or internal state. What factors control these behavioral switches and the selection of what to do or what not to do? To address these issues, we will focus on the locomotor behaviors of two distantly related "worms," the medicinal leech Hirudo verbana (clade Lophotrochozoa) and the nematode Caenorhabditis elegans (clade Ecdysozoa). Although the neural architecture and body morphology of these organisms are quite distinct, they appear to switch between different forms of locomotion by using similar strategies of decision-making. For example, information that distinguishes between liquid and more solid environments dictates whether an animal swims or crawls. In the leech, dopamine biases locomotor neural networks so that crawling is turned on and swimming is turned off. In C. elegans, dopamine may also promote crawling, a form of locomotion that has gained new attention.