Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Vestibular Discrimination of Gravity and Translational Acceleration
 

Summary: 114
Vestibular Discrimination of Gravity and
Translational Acceleration
DORA E. ANGELAKI,a MIN WEI,a AND DANIEL M. MERFELDb
aDepartment of Neurobiology and Biomedical Engineering, Washington University
School of Medicine, St Louis, Missouri 63110, USA
bJenks Vestibular Physiology Laboratory, Massachusetts Eye and Ear Infirmary and
Department of Otology and Laryngology, Harvard Medical School, Boston,
Massachusetts, USA
ABSTRACT: According to Einstein's equivalence principle, linear accelerations
experienced during translational motion are physically indistinguishable from
changes in orientation relative to gravity experienced during tilting move-
ments. Nevertheless, despite these ambiguous sensory cues provided by the pri-
mary otolith afferents, perceptual and motor responses discriminate between
gravity and translational acceleration. There is growing evidence to suggest
that the brain resolves this ambiguity primarily by combining signals from
multiple sensors, the semicircular canals being a main extra otolith contribu-
tor. Here, we summarize the experimental evidence in support of the canal in-
fluences on the neural processing of otolith cues, provide specific experimental
results in rhesus monkeys, and discuss and compare previously proposed mod-

  

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

 

Collections: Biology and Medicine