Abstract:
PURPOSE:To investigate effects of alertness on three-dimensional (3D) eye movements. METHODS:During drowsy and alert periods, 3D eye movements were recorded with dual search coils in three normal rhesus monkeys, and in two of these monkeys after placement of bilateral kainic acid lesions of the rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF). RESULTS:When the three monkeys were in the normal state, the average plane thickness (standard deviation of all rotation vectors from the regressed plane) during drowsy periods (range, 1.2-1.9 degrees ) increased significantly compared with the plane thickness during alert periods (range, 0.7-0.9 degrees ) in the light (P <.05). The plane thickness increased significantly in the monkey with asymmetric bilateral riMLF-lesions (P <.05); however, the increase was not significant in the monkey with more symmetric bilateral riMLF-lesions. After the bilateral riMLF-lesions, the plane thickness also increased with drowsiness in both monkeys (P <.02), as it had in the normal state. CONCLUSION:The implementation of Listing's law is independent of the presence of vertical-torsional burst neurons in the riMLF. The increase in thickness of Listing's plane during drowsy periods is not due to an imprecise signal from saccadic burst neurons to the 3D velocity-to-position integrator. It is possible that this integrator itself controls Listing's law, depending on the state of alertness.
journal_name
Jpn J Ophthalmoljournal_title
Japanese journal of ophthalmologyauthors
Suzuki Y,Straumann D,Henn Vdoi
10.1016/s0021-5155(00)00211-2keywords:
subject
Has Abstractpub_date
2000-09-01 00:00:00pages
457-62issue
5eissn
0021-5155issn
1613-2246pii
S0021-5155(00)00211-2journal_volume
44pub_type
杂志文章abstract::The purpose of this study is to elucidate the extension of the corneal endothelium onto the iris surface, a condition which has been found in the eyes with rubeosis iridis in various ocular disorders. Histopathology of the anterior chamber angle was studied by electron microscopy in 6 eyes with neovascular glaucoma oc...
journal_title:Japanese journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1983-01-01 00:00:00
abstract::This is a clinical and laboratory report on 98 patients with acute viral conjunctivitis who were referred to the Eye Clinic of the Escola Paulista de Medicina of Sao Paulo, Brazil, from February 1983 to February 1984. It was planned with the objective of confirming the importance of adenovirus and enterovirus 70 as et...
journal_title:Japanese journal of ophthalmology
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pub_type: 杂志文章,多中心研究
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abstract::Medical histories with emphasis on malignant disease were obtained on 1,269 first and second degree relatives of 93 probands with retinoblastoma and on 671 first and second degree relatives of 50 age-matched control children. The number of nonocular malignancies expected to occur in first and second degree relatives o...
journal_title:Japanese journal of ophthalmology
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更新日期:1989-01-01 00:00:00
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journal_title:Japanese journal of ophthalmology
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Japanese journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
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journal_title:Japanese journal of ophthalmology
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
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journal_title:Japanese journal of ophthalmology
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doi:
更新日期:1989-01-01 00:00:00
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journal_title:Japanese journal of ophthalmology
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更新日期:1983-01-01 00:00:00
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journal_title:Japanese journal of ophthalmology
pub_type: 杂志文章
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journal_title:Japanese journal of ophthalmology
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更新日期:2001-01-01 00:00:00
abstract:: ...
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pub_type: 杂志文章,评审
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更新日期:2018-11-01 00:00:00
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journal_title:Japanese journal of ophthalmology
pub_type: 杂志文章
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更新日期:2000-01-01 00:00:00
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pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Japanese journal of ophthalmology
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更新日期:1988-01-01 00:00:00
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