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686 IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING. VOL. 40, NO. 7,JULY 1993 Generation of Two-Dimensional Spatial and
 

Summary: 686 IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING. VOL. 40, NO. 7,JULY 1993
Generation of Two-Dimensional Spatial and
Temporal Properties Through Spatiotemporal
Convergence Between One-Dimensional NI,wrons
Dora E. Angelaki
Abstruct- Primary otolith afferents are characterized by di-
verse temporal and spatial response properties. The temporal
properties of these neurons vary from tonic to phasic response
characteristics during stimulation with linear acceleration. This
presentation examines the response properties of target neu-
rons that arise from spatiotemporal convergence (STC) between
purely tonic and phasic-tonic afferents. The transfer function
of the phasic-tonic afferent is described by either fractional
leaky differentiator or integrator terms. Target neurons would
generallyexhibit two-dimensionalspatialsensitivityand are char-
acterized by two perpendicular response vectors. It is shown
that target neurons have different temporal properties during
stimulation along different spatial directions. Specifically, they
could exhibit tonic temporal response dynamics during stimu-
lation along one response vector and phasic dynamics during

  

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

 

Collections: Biology and Medicine