Visual Pathways
Mostrando 1-12 de 136 artigos, teses e dissertações.
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1. Downregulation of CSF-derived miRNAs miR-142-3p and miR-17-5p may be associated with post-dural puncture headache in pregnant women upon spinal anesthesia
Abstract Background: Postdural puncture headache (PDPH) develops due to puncture of the dura mater. The risk factors that influence PDPH incidence are Body Mass Index (BMI), sex, spinal needle type, history of headache, and loss of Cerebrospinal fluid (CSF) volume, yet there is no consensus on these risk factors. The pathophysiology of PDPH is poorly unders
Brazilian Journal of Anesthesiology. Publicado em: 2022
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2. Clinical manifestations in patients with musculoskeletal pain post-chikungunya
RESUMO JUSTIFICATIVA E OBJETIVOS: As manifestações clínicas crônicas da infecção pelo vírus chikungunya estão associadas a altos índices de incapacidade e piora da qualidade de vida, representando um dos grandes desafios para a saúde pública mundial. O objetivo deste estudo foi investigar a apresentação clínica-psico-funcional de indivíduos i
BrJP. Publicado em: 02/12/2019
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3. Alice in Wonderland syndrome: “Who in the world am I?”
RESUMO Síndrome de Alice no País das Maravilhas (SAPM) é uma condição paroxística visual perceptiva e somestésica que pode ser encontrada em pacientes com enxaqueca, epilepsia, doença cerebrovascular ou infecções. A condição é relativamente rara e tem características alucinatórias peculiares. Objetivo: Discutir as potenciais vias envolvidas n
Arq. Neuro-Psiquiatr.. Publicado em: 23/09/2019
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4. Outcomes of Late Implantation in Usher Syndrome Patients
Abstract Introduction Usher syndrome (US) is an autosomal recessive disorder characterized by hearing loss and progressive visual impairment. Some deaf Usher syndrome patients learn to communicate using sign language. During adolescence, as they start losing vision, they are usually referred to cochlear implantation as a salvage for their new condition. Is
Int. Arch. Otorhinolaryngol.. Publicado em: 2017-06
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5. Relationship between retinal sensitivity and disease activity in patients with psoriasis vulgaris
OBJECTIVES: Psoriasis is a hyperproliferative chronic inflammatory skin disease of unknown etiology and ocular structures and visual pathways can also be affected during the course of this disease. Subclinical optic neuritis has previously been observed in psoriatic patients in visual evoked potential studies. This trial was designed to evaluate retinal sen
Clinics. Publicado em: 2015-01
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6. Color signals in retina and lateral geniculate nucleus of marmoset monkeys
Marmosets show sex-linked polymorphism of color vision, whereby all males and some females show dichromatic ("red-green color-blind") vision based on two classes of photoreceptor sensitive to short or medium wavelength bands. Most female marmosets by contrast express three photoreceptor classes, one sensitive to short wavelengths and two classes in the mediu
Psychol. Neurosci.. Publicado em: 2013
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7. Contrast sensitivity of pattern transient VEP components: contribution from M and P pathways
The purpose of this study was to compare contrast sensitivity estimated from transient visual evoked potentials (VEPs) elicited by achromatic pattern-reversal and pattern-onset/offset modes. The stimuli were 2-cpd, achromatic horizontal gratings presented either as a 1 Hz pattern reversal or a 300 ms onset/700 ms offset stimulus. Contrast thresholds were est
Psychol. Neurosci.. Publicado em: 2013
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8. Avaliação eletrofisiológica e psicofísica das vias visuais ON e OFF em jovens com distrofia muscular de Duchenne / Electrophysiological and psychophysical evaluation of ON and OFF visual pathways in Duchenne muscular dystrophy patients
A distrofina é uma das proteínas que formam o complexo glicoproteico necessário para a integridade da fibra muscular e sua disfunção causa uma doença genética letal para os seres humanos, a distrofia muscular de Duchenne (DMD). Além do papel fundamental no tecido muscular, a distrofina é necessária para a fisiologia da retina e, portanto, para o pr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/03/2012
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9. Immunoglobulin: production, mechanisms of action and formulations
Human immunoglobulin (Ig) began to be applied in the clinical practice with the treatment of primary immunodeficiencies. Quickly, applications of Ig increased, as its anti-inflammatory and immunomodulatory functions were elucidated. Currently, Ig is the most commonly used blood product. Ig is obtained by processing plasma; methods, in particular, techniques
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2011-10
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10. Visual contrast sensitivity in tonic-clonic epileptic patients
We measured the effects of epilepsy on visual contrast sensitivity to linear and vertical sine-wave gratings. Sixteen female adults, aged 21 to 50 years, comprised the sample in this study, including eight adults with generalized tonic-clonic seizure-type epilepsy and eight age-matched controls without epilepsy. Contrast threshold was measured using a tempor
Psychology & Neuroscience. Publicado em: 2011-06
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11. Formalização de uma linguagem visual para descrição de sistemas biológicos / Formalization of a visual language to specify biological pathways
Vias biológicas representam interações entre entidades químicas complexas (proteínas, substratos, metabólitos etc.) que ocorrem no nível molecular das células. A representação e compreensão do comportamento destas vias é o principal alvo de estudos da Biologia Sistêmica. Esta área de estudos envolve a construção de modelos matemáticos que po
Publicado em: 2011
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12. Diagnosis and management of somatosensory tinnitus: review article
Tinnitus is the perception of sound in the absence of an acoustic external stimulus. It affects 10-17% of the world's population and it a complex symptom with multiple causes, which is influenced by pathways other than the auditory one. Recently, it has been observed that tinnitus may be provoked or modulated by stimulation arising from the somatosensorial s
Clinics. Publicado em: 2011