Results 171 to 180 of about 95,821 (225)

Cervicocollic reflex: its dynamic properties and interaction with vestibular reflexes

Journal of Neurophysiology, 1985
Electromyographic activity of dorsal neck muscles elicited by sinusoidal rotations of the body and head was studied in decerebrate cats over a wide range of rotational frequencies and amplitudes. Rotation of the body with the head held fixed in space elicited a cervicocollic reflex (CCR) in the biventer cervicis, complexus, obliquus capitis inferior ...
B W, Peterson, J, Goldberg, G, Bilotto, J H, Fuller   +3 more
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Variability in the Vestibulo-Ocular Reflex and Vestibular Perception [PDF]

Neuroscience, 2018
The vestibular system enables humans to estimate self-motion, stabilize gaze and maintain posture, but these behaviors are impacted by neural noise at all levels of processing (e.g., sensory, central, motor). Despite its essential importance, the behavioral impact of noise in human vestibular pathways is not completely understood. Here, we characterize
Faisal Karmali
exaly   +3 more sources

Vestibular prepulse inhibition of the human blink reflex

Clinical Neurophysiology
Abstract Objective Auditory and somatosensory prepulses are commonly used to assess prepulse inhibition (PPI). The effect of a vestibular prepulse upon blink reflex (BR) excitability has not been hitherto assessed.
Matteo Ciocca, Yen F Tai, Zaeem Hadi
exaly   +4 more sources

Vestibular and Optokinetic Asymmetries in the Ocular and Cervical Reflexes

1992
AbstractAsymmetries of the vertical optokinetic reflex (VOKR) and the vertical vestibulo-ocular reflex (VVOR) have been observed in many species. Gains of upward OKR slow phases were higher than those of downward OKR slow phases. An upward preponderance was also observed in the VVOR of cats. This difference between upward and downward eye responses has
PETTOROSSI, Vito Enrico, FERRARESI, Aldo, A. FERRARESI, DRAICCHIO F., SANTARELLI R., BRUNI R.   +5 more
openaire   +3 more sources

Classical Conditioning Using Vestibular Reflexes

Journal of Vestibular Research, 1998
Adaptation of the vestibulo-ocular reflex (VOR) is one of the principal models for studying motor learning in the mammalian eNS. However, there has been no previous comprehensive attempt to understand the behavioral characteristics of VOR adaptation in terms of traditional psychological learning theory.
openaire   +2 more sources

Analysis of Vestibular-Ocular Reflex by Evolutionary Framework

2008
In this paper the problem of analysis of eye movements using sinusoidal head rotation test is presented. The goal of the method is to discard automatically the effect of the fast phase-saccades and consequently calculate the response of vestibular system in the form of phase shift and amplitude.
Daniel Novák, Ales Pilný, Pavel Kordík, Stefan Holiga, Petr Posík, R. Cerný, Richard Brzezny   +6 more
openaire   +2 more sources

Anodal vestibular stimulation does not suppress vestibular reflexes in human subjects

Experimental Brain Research, 2003
Anodal current applied to the vestibular apparatus has previously been found to inhibit discharge from irregular vestibular afferents in squirrel monkeys. We wished to investigate whether anodal currents applied over the mastoid processes of human subjects would significantly reduce ongoing vestibular activity and thereby the size of galvanic-evoked ...
Ann M, Bacsi, James G, Colebatch
openaire   +2 more sources

Deficient cancellation of the vestibular ocular reflex in schizophrenia

Schizophrenia Research, 1998
Schizophrenia has long been associated with difficulties in visual tracking of a moving object. Deficits are most notable in tracking tasks that require inhibition of saccades during active smooth pursuit. In order to assess whether there is a more global problem in inhibition of other eye movement systems while the smooth pursuit system is active ...
S, Warren, R G, Ross
openaire   +2 more sources

Visual and vestibular reflexes that stabilize gaze in the chameleon

Visual Neuroscience, 1993
AbstractSpontaneous eye movements as well as visual, vestibular, and proprioceptive cervical reflexes which contribute to gaze stabilization were investigated in the chameleon using the magnetic search-coil technique. The oculomotor range of each eye was very large (180 deg horizontally × 80 deg vertically). Spontaneous ocular saccades were independent
H, Gioanni, M, Bennis, A, Sansonetti
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Interaction of Vestibular and Proprioceptive Reflexes in the Decerebrate Cat

American Journal of Physiology-Legacy Content, 1956
The quantitative interrelation between stretch, tension and position in space was studied in decerebrate cats. The tension produced by the isolated M. triceps brachii was recorded by means of strain gauges. It was found that the tension increment, produced by a particular stretch, increases as the preparation is turned from the prone to the supine ...
W P, KOELLA, H, NAKAO, R L, EVANS, J, WADA   +3 more
openaire   +2 more sources