Eye movements are essential to get a clear vision of moving objects. In the present study, we assessed quantitatively the oculomotor deficits of children with cerebral palsy (CP). We recorded eye movements of 51 children with cerebral palsy (aged 5-16 years) with relatively mild motor impairment and compared their performance with age-matched control and premature children. Overall eye movement...

The postnatal maturation of rat brainstem (oculomotor and hypoglossal nuclei) and spinal motoneurons, based on data collected from in vitro studies, is reviewed here. Membrane input resistance diminishes with age, but to a greater extent for hypoglossal than for oculomotor motoneurons. The time constant of the membrane diminishes with age in a similar fashion for both oculomotor and hypoglossal...

Cerebellar influence on the oculomotor evoked potential was investigated. Bilateral decerebration was performed in 25 adult cats by thalamocollicular section under chloralose anesthesia. The evoked potential in the oculomotor nucleus by the electrical stimulation of the isolated medial rectus nerve was inhibited by the repeated electrical stimulation of a restricted area of the cerebellar corte...

The eye movement system is sensitive to reward. However, whilst the eye movement system is extremely flexible, the extent to which changes to oculomotor behavior induced by reward paradigms persist beyond the training period or transfer to other oculomotor tasks is unclear. To address these issues we examined the effects of presenting feedback that represented small monetary rewards to spatial ...

Complex oculomotor behavior in response to a simple step stimulus can include a variety of different types of saccadic patterns including combinations of normal saccades, simple/corrected/multi-corrected overshoots/undershoots, express, dynamic overshoots, and compound saccades depending on the state of the oculomotor plant and the neuronal control signal supplied by the brain. This paper prese...

The refractive state of monkeys was followed during preganglionic oculomotor nerve stimulation and during preganglionic sympathetic nerve stimulation performed against a background of oculomotor stimulation. It was found that oculomotor stimulation rates of 2 to 5 per second gave accommodative responses of about 1 to 3 D, and 20 to 50 stimuli per second gave about 6 to 11 D of accommodation. Ac...

The study of the neural mechanisms underlying visual attention has been bound up with the study of oculomotor control for almost as long as both have been investigated scientifically. Before the 1970s, most knowledge about the neural mechanisms of visual attention and oculomotor control was derived from lesion studies in animals and from clinical case reports. The phenomenon of contralateral in...

BACKGROUND AND PURPOSE We describe the first case of bilateral medial medullary infarction demonstrated by magnetic resonance imaging. We discuss the relation between this lesion and the oculomotor signs that were observed clinically. CASE DESCRIPTION A 71-year-old man initially presented with pure motor hemiparesis, which progressed to complete quadriplegia. He also developed nearly complete...