Memory guided saccade deficit after caudate nucleus lesion
نویسندگان
چکیده
منابع مشابه
Memory guided saccade deficit after caudate nucleus lesion.
The role of the caudate nucleus in ocular motor control is not well determined in humans. Eye movements were recorded from a 45 year old man with infarctions involving bilaterally the body of the caudate nucleus, with a greater extent on the left side. The patient exhibited a pattern of eye movement abnormalities in which a delay dependent decrease of accuracy of memory guided saccades predomin...
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It has been suggested that the caudate nucleus, the input stage of the basal ganglia, facilitates and suppresses saccade initiation based on its anatomical characteristics. Although the involvement of the caudate nucleus in saccade facilitation has been shown previously, it is still unclear whether the caudate nucleus is also involved in saccade suppression. Here, we revealed the direct involve...
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The neurologic basis of attention deficit-hyperactivity disorder (ADHD) is poorly understood. Based on previous studies that have implicated metabolic deficiencies in the caudate-striatal region in ADHD, we employed magnetic resonance imaging to investigate patterns of morphology of the head of the caudate nucleus in normal and ADHD children. In normal children, 72.7% evidenced a left-larger-th...
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Sensory-motor transformations are often studied using memory-guided movements to small numbers of targets. Whether target locations are directly converted into motor plans on every trial, or subjects use targets to select one of a small number of previously memorized trajectories is unknown. Well-trained monkeys made memory-guided saccades to familiar or nearby novel targets. Performance was su...
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ژورنال
عنوان ژورنال: Journal of Neurology, Neurosurgery & Psychiatry
سال: 1999
ISSN: 0022-3050
DOI: 10.1136/jnnp.66.4.524