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Ocular Motor Terminology
Listed below are ocular motor terms and conclusions that have resulted from research conducted at OMLAB. Some are commonly used terms in ocular motor literature and others, for the cognsicenti.
Terms
anticipatory saccades
audio ocular response (AOR)
braking saccades
congenital nystagmus (CN) old terminology for Infantile Nystagmus Syndrome (INS).
conjugacy-plot analysis of nystagmus (CN)
conjugacy scale (ELS, nystagmus, SPNU)
decreasing-velocity slow phases (LMLN)
defoveating fast phases (LMLN)
discrete decelerations
double saccadic pulses
fast eye movement subsystem
fixation attempt (effort to see)
flutter dysmetria
foveate, foveating, foveation
foveating saccades
foveation period
foveation-period gain (measure of pursuit and VOR subsystems in CN)
foveation window
Fusion Maldevelopment Nystagmus Syndrome (FMNS) new terminology for latent/manifest latent nystagmus (LMLN).
glissades
high-gain intrusions (in MG)
Infantile Nystagmus Syndrome (INS) new terminology for congenital nystagmus (CN).
increasing-velocity slow phases
internal monitor for corrective saccades
latent component in CN (different than LN)
latent/manifest latent nystagmus (LMLN) old terminology for Fusion Maldevelopment Nystagmus Syndrome (FMNS).
local resettable neural integrator for pulse width
macro square-wave jerks (also, inverse latent MSWJ) - see square-wave pulses
null shift (CN during eye cover, pursuit and VOR)
null shift (PAN)
nystagmus foveation function (acuity in CN)
nystagmus scan-paths (scan-path analysis of nystagmus (CN))
oscillopsia plane(s) vs. nystagmus plane(s) (CN)
phase-plane analysis of nystagmus (CN)
psychogenic flutter
rest-effect (in MG)
retrosaccades (if they exist)
saccadic intrusions
saccadic metrics and trajectories classification (MG, ELS, etc.)
saccadic oscillations
saccadic pulse trains
saccadic pulses
slow eye movement intrusions (in MG)
slow eye movement subsystem
square-wave oscillations
square-wave pulses (a more accurate replacement for the original term, MSWJ)
stepless saccades
staircase saccadic intrusions
waveforms of CN (12 identified and named plus 3 with combined NOT nystagmus)
Conclusions (see also Hypotheses)
congenital nystagmus is a disorder waiting to happen
congenital nystagmus is a primary motor instability
congenital nystagmus is not caused by any associated sensory defect
congenital nystagmus may be facilitated by an associated sensory defect
congenital nystagmus is an unstable pursuit subsystem
high-gain instability in the pursuit system is the cause of INS)
horizontal smooth pursuit is inherently more unstable than vertical (CN)
neural integrator control not open loop from PG
slow phases initiate and sustain all nystagmus
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