Moving in three-dimensional space: frames of reference, vectors, and coordinate systems.
Moving in three-dimensional space: frames of reference, vectors, and coordinate systems.
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DOI:
10.1146/annurev.ne.15.030192.001123
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发表时间:
1992
影响因子:
13.9
通讯作者:
Systems J F Soechting;M. Flanders
中科院分区:
文献类型:
--
作者:
Systems J F Soechting;M. Flanders
We move in a three-dimensional world. What are the motor commands that generate movements o a target in space, and how is sensory information used to control and coordinate such movements? To answer these questions, one must determine how spatial parameters are encoded by the activity of neurons. Within the last decade, experimenters have begun to study a variety of movements in three-dimensional space. Among these are "reflexive" (or postural) eye, head, and body movements elicited vestibular and visual stimuli; orienting movements of the eyes, head, and body subserved by the superior collieulus (or in lower vertebrates, the optic tectum); and arm movements with their neural correlates in motor cortex. The neural systems that are involved in the production of each of these movements must deal with aspects that are particular to that task, and specialized reviews are available on each of these topics (Georgopoulos 1986; Knudsen et al 1987; Simpson 1984; Sparks 1986). Nevertheless, the question of spatial representation is a theme common to each of these