- jerk nystagmus
- jerky nystagmus nystagmus consisting of slow movement in one direction followed by a rapid return movement in the opposite direction; called also resilient or rhythmical n.
Medical dictionary. 2011.
jerk nystagmus
Look at other dictionaries:
nystagmus — nystagmic, adj. /ni stag meuhs/, n. a congenital or acquired persistent, rapid, involuntary, and oscillatory movement of the eyeball, usually from side to side. [1815 25; < NL < Gk nystagmós nodding, deriv. of nystázein to nod] * * * ▪ physiology … Universalium
central nystagmus — jerk nystagmus caused by a lesion somewhere in the neurologic pathways regulating gaze … Medical dictionary
periodic alternating nystagmus — a rare type of jerk nystagmus that has rhythmic changes in amplitude and direction with intervals of quiet between periods … Medical dictionary
resilient nystagmus — jerk n … Medical dictionary
rhythmical nystagmus — jerk n … Medical dictionary
mechanoreception — See mechanoreceptor. * * * Ability to detect and respond to mechanical stimuli in one s environment. A slight deformation of a mechanoreceptive neuron causes an electric charge at its surface, activating a response. Mechanoreceptors in pain spots … Universalium
sensory reception, human — Introduction means by which humans react to changes in external and internal environments. Ancient philosophers called the human senses “the windows of the soul,” and Aristotle described at least five senses sight, hearing, smell, taste, and… … Universalium
Reflex — A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The nasal reflex is a sneeze. * * * 1. An involuntary reaction in response to a stimulus applied to the periphery and transmitted to the… … Medical dictionary
Optokinetic reflex — Horizontal optokinetic nystagmus. The optokinetic reflex allows the eye to follow objects in motion when the head remains stationary (e.g. observing individual telephone poles on the side of the road as one travels by them in a car). The reflex… … Wikipedia
Vestibulo-ocular reflex — The vestibulo ocular reflex. A rotation of the head is detected, which triggers an inhibitory signal to the extraocular muscles on one side and an excitatory signal to the muscles on the other side. The result is a compensatory movement of the… … Wikipedia
