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Biol. Cybern.67, 523-533(1992) Detectionof rotatinggravitysignals
 

Summary: Biol. Cybern.67, 523-533(1992)
Detectionof rotatinggravitysignals
Dora E. Angelaki
Department of Neurology, University of Zirich, CH-8091Zirich, Switzerland
ReceivedDecember3, l99llAcceptedApril 10, 1992
Abstract. It is shown in the preceding paper that neu-
rons with two-dimensional spatio-temporal properties
to linear acceleration behave like one-dimensional rate
sensors:they encode the component of angular veloc-
ity (associated with a rotating linear acceleration vec-
tor) that is normal to their response plane. During
off-vertical axis rotation (OVAR) otolith-sensitive neu-
rons are activated by the gravity vector as it rotates
relative to the head. Unlike "one-dimensional" linear
accelerometer neurons which exhibit equal response
magnitudes for both directions of rotation, "two-di-
mensional" neurons can be shown to respond with
unequal magnitudes to clockwise and counterclockwise
off-vertical axis rotations. The magnitudes of the sinu-
soidal responsesof these neurons is not only direction-

  

Source: Angelaki, Dora - Department of Anatomy and Neurobiology, Washington University in St. Louis

 

Collections: Biology and Medicine