Abstract:
:Studies of vision using electrophysiological techniques are tests which record functional alterations in very early phases of a disease. Full field flash ERG evaluates the integrity of the cones, rods and bipolar cells. It is obtained by photopsic stimulation with Ganzfeld and contact lens corneal electrodes or, alternatively, gold leaf or anchor electrodes. Five responses must be obtained: that of the rods, a maximum, oscillatory potentials, that of the cones and a flicker response. Pattern ERG is a response of the ganglionic cells, which is obtained by pattern reversal morphoscopic stimulation, with a bandwidth between 1 and 60 Hz. The fundamental waves (0.5 5 mV) are P50 (luminance) and N95 (pattern specific). This is of great value in the early diagnosis of glaucoma. VEP are electrical fields that are recorded in the calcarine cortex. They give information about alterations in the optic nerve, chiasm, radiations and cortex. Pattern VEP is obtained with a visual angle of between 13 and 14 . The fundamental wave P100 is evaluated according to its latency and amplitude, and by comparing it with a healthy eye. Flash VEP is only used on patients who do not collaborate or who present an opacity of media.
journal_name
Rev Neuroljournal_title
Revista de neurologiaauthors
Ucles Moreno Psubject
Has Abstractpub_date
2003-02-15 00:00:00pages
391-4issue
4eissn
0210-0010issn
1576-6578pii
rn2002230journal_volume
36pub_type
杂志文章abstract:AIM:To contribute to the knowledge of the cognitive differences existent between right-handed and left-handed evaluating the cognitive outcome in a group of adults right-handed and another group of left-handed of similar characteristic (age, gender, cultural level) by means of the Wechsler Adult Intelligence Scale (WAI...
journal_title:Revista de neurologia
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更新日期:2006-01-16 00:00:00
abstract::The established risk factors for ischemic stroke do not sufficiently explain all clinical and epidemiological features of the disease, such as the winter peak of stroke incidence, the decline of stroke during this century and the time point of cerebral ischemia. A role of infectious disease as stroke risk factor may p...
journal_title:Revista de neurologia
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更新日期:1999-11-01 00:00:00
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更新日期:2014-06-16 00:00:00
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更新日期:2015-02-25 00:00:00
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更新日期:2010-04-16 00:00:00
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更新日期:2009-01-23 00:00:00
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journal_title:Revista de neurologia
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更新日期:2003-10-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:2002-11-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:1999-09-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:1997-04-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2002-09-01 00:00:00
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更新日期:2018-03-01 00:00:00
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pub_type: 杂志文章
doi:
更新日期:2016-01-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2017-11-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:1998-05-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2015-04-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:1997-09-01 00:00:00
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pub_type: 杂志文章,评审
doi:
更新日期:2007-11-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2006-12-01 00:00:00
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pub_type: 指南,杂志文章
doi:
更新日期:2012-01-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:1997-12-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2000-08-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2000-05-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:2001-03-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章,评审
doi:
更新日期:1999-08-16 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:2000-09-01 00:00:00
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journal_title:Revista de neurologia
pub_type: 杂志文章
doi:
更新日期:2009-02-01 00:00:00