PMID- 7274361
OWN - NLM
STAT- MEDLINE
DCOM- 19811118
LR  - 20190721
IS  - 0014-4819 (Print)
IS  - 0014-4819 (Linking)
VI  - 44
IP  - 1
DP  - 1981
TI  - Differential visual adaptation of vertical canal-dependent vestibulo-ocular 
      reflexes.
PG  - 19-26
AB  - Reversing vision in the horizontal (left-right) plane in humans induces adaptive 
      mechanisms and even reversal of the horizontal vestibulo-ocular reflex (HVOR). 
      The present experiments were aimed at investigating if such adaptive 
      modifications could be observed in the frontal plane by reversal of the torsional 
      visual world movements. Torsional vestibulo-ocular reflex (TVOR) was measured in 
      one subject who wore Dove prisms for 19 days. The gain of TVOR was tested in the 
      dark with the head leaned backward and rotating around an earth vertical axis 
      with sinusoidal rotation (1/6 HZ). The gain decreased from 0.27 to 0.13 at 70 
      degrees peak-to-peak amplitude, and from 0.3 to 0.11 at 45 degrees peak-to-peak 
      amplitude after 19 days of prism-wearing. Full gain recovery was observed 10 days 
      after prism removal. The results are compared with the observation that in the 
      same situation the vertical VOR (up-down) is not reversed (Dove prisms do not 
      reverse visual images in this plane). As the same four (vertical) canals produce 
      both reflexes, it is suggested that central neuronal mechanisms allow the 
      recognition of the geometrical pattern of visual reversals and selectively adapt 
      the reflex in the relevant planes.
FAU - Berthoz, A
AU  - Berthoz A
FAU - Jones, G M
AU  - Jones GM
FAU - Begue, A E
AU  - Begue AE
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Exp Brain Res
JT  - Experimental brain research
JID - 0043312
SB  - IM
MH  - *Acclimatization
MH  - Adult
MH  - *Eye Movements
MH  - Female
MH  - Humans
MH  - *Reflex, Acoustic
MH  - *Reflex, Pupillary
MH  - Semicircular Canals/*physiology
MH  - *Visual Perception
OID - NASA: 82004445
EDAT- 1981/01/01 00:00
MHDA- 1981/01/01 00:01
CRDT- 1981/01/01 00:00
PHST- 1981/01/01 00:00 [pubmed]
PHST- 1981/01/01 00:01 [medline]
PHST- 1981/01/01 00:00 [entrez]
AID - 10.1007/BF00238745 [doi]
PST - ppublish
SO  - Exp Brain Res. 1981;44(1):19-26. doi: 10.1007/BF00238745.