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Morris water navigation task
The Morris water navigation task, also known as the Morris water maze, is a behavioral procedure mostly used with rodents. It is widely used in behavioral neuroscience to study spatial learning and memory. It can be a very accurate study of learning, memory, and spatial working and can also assess damage to cortical regions of the brain.〔 It is used largely by neuroscientists to measure the effect of neurocognitive disorders on spatial learning and possible neural treatments, to test the effect of lesions to the brain in areas focused on memory, and to study how age influences cognitive function and spatial learning.〔〔 The task is also used as a tool to study drug-abuse, neural systems, neurotransmitters, and brain development.〔
== Overview ==
The basic procedure for the Morris water navigation task is that the rat is placed in a large circular pool and is supposed to find an invisible or visible platform that allows it to escape the water by using various cues. Many factors can influence the rats' performance, including their sex, the environment in which they were raised, exposure to drugs, etc. There are three basic tactics for the rats to escape the maze: a praxic strategy (remembering the movements needed to get to the platform), a taxic strategy (the rat uses visual cues to reach their destinations), or spatial strategy (using distal cues as points of reference to locate themselves). There are a variety of paradigms for the water maze that can be used to examine different cognitive functions. In particular, cognitive flexibility can be assessed using a water maze paradigm in which the hidden platform is continually re-located.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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