Chapter

Perception of Motion

Nigel Daw

in How Vision Works

Published in print January 2012 | ISBN: 9780199751617
Published online May 2012 | e-ISBN: 9780199932375 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199751617.003.0005
Perception of Motion

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There are two types of motion to be considered: motion of an object in relation to other objects in the field of view, and motion of a person through the world. Motion of an object is always seen relative to other objects, and this is accomplished by cells that respond to movement in a particular direction and are inhibited by objects moving in the same direction in the background. Cells dealing with motion through the world are excited by an object, with a response that is enhanced by the background moving in the same direction, and get vestibular input. Cells in the retina respond to direction of movement, as do cells in LGN, V1, and V2. These project to V5 (aka MT), where the two types of cell are segregated into stripes, and to MST, where the two types of cell are segregated into different parts of the area.

Keywords: direction; mT; v5; mST; motion is relative; vestibular input

Chapter.  8389 words.  Illustrated.

Subjects: Neuropsychology

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