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Système nerveux
Système nerveux central
Encéphale
Prosencéphale
Télencéphale
Cerveau
Cortex cérébral
Cortex sensorimoteur
Cortex visuel
Cortex visuel : Questions médicales fréquentes
Termes MeSH sélectionnés :
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"name": "Comment diagnostiquer une lésion du cortex visuel ?",
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"text": "Un examen neurologique et des imageries cérébrales comme l'IRM sont utilisés."
}
},
{
"@type": "Question",
"name": "Quels tests évaluent la fonction visuelle ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests de champ visuel et d'acuité visuelle sont couramment utilisés."
}
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{
"@type": "Question",
"name": "Quels signes indiquent une dysfonction du cortex visuel ?",
"position": 3,
"acceptedAnswer": {
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"text": "Des troubles de la perception visuelle, comme l'agnosie, peuvent indiquer une dysfonction."
}
},
{
"@type": "Question",
"name": "Quel rôle joue l'électroencéphalogramme (EEG) ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'EEG peut aider à détecter des anomalies électriques liées à des troubles visuels."
}
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{
"@type": "Question",
"name": "Comment évaluer la vision des couleurs ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des tests spécifiques comme le test de Ishihara sont utilisés pour évaluer la vision des couleurs."
}
},
{
"@type": "Question",
"name": "Quels sont les symptômes d'une lésion du cortex visuel ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes incluent des troubles de la vision, des hallucinations visuelles et des difficultés de reconnaissance."
}
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{
"@type": "Question",
"name": "Comment se manifeste l'agnosie visuelle ?",
"position": 7,
"acceptedAnswer": {
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"text": "L'agnosie visuelle se manifeste par l'incapacité de reconnaître des objets malgré une vision intacte."
}
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{
"@type": "Question",
"name": "Qu'est-ce que l'hémianopsie ?",
"position": 8,
"acceptedAnswer": {
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}
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{
"@type": "Question",
"name": "Quels troubles peuvent affecter la perception des mouvements ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des troubles comme la simultagnosie peuvent affecter la perception des mouvements et des objets."
}
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{
"@type": "Question",
"name": "Quels symptômes indiquent une migraine occulaire ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les symptômes incluent des troubles visuels temporaires, comme des éclairs lumineux ou des taches."
}
},
{
"@type": "Question",
"name": "Comment prévenir les lésions cérébrales ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les traumatismes crâniens, adopter un mode de vie sain et contrôler les maladies vasculaires."
}
},
{
"@type": "Question",
"name": "Quels examens réguliers sont recommandés ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des examens ophtalmologiques réguliers peuvent aider à détecter précocement des troubles visuels."
}
},
{
"@type": "Question",
"name": "Comment réduire le risque de migraines ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Éviter les déclencheurs connus, gérer le stress et maintenir une bonne hydratation peuvent aider."
}
},
{
"@type": "Question",
"name": "Quels conseils pour protéger la santé oculaire ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Porter des lunettes de soleil, éviter les écrans excessifs et avoir une alimentation équilibrée."
}
},
{
"@type": "Question",
"name": "Comment gérer le stress pour prévenir les troubles visuels ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des techniques de relaxation comme le yoga et la méditation peuvent aider à réduire le stress."
}
},
{
"@type": "Question",
"name": "Quels traitements existent pour les troubles visuels ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traitements incluent la rééducation visuelle, la thérapie occupationnelle et parfois des médicaments."
}
},
{
"@type": "Question",
"name": "Comment traiter l'agnosie visuelle ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "La thérapie cognitive et des exercices de reconnaissance peuvent aider à traiter l'agnosie."
}
},
{
"@type": "Question",
"name": "Quels médicaments peuvent aider les migraines visuelles ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des médicaments comme les triptans et les anti-inflammatoires peuvent soulager les migraines."
}
},
{
"@type": "Question",
"name": "Comment la rééducation visuelle fonctionne-t-elle ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "La rééducation visuelle utilise des exercices pour améliorer la perception et la reconnaissance visuelle."
}
},
{
"@type": "Question",
"name": "Quels sont les traitements pour l'hémianopsie ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des stratégies de compensation et des exercices de champ visuel peuvent aider à gérer l'hémianopsie."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir après une lésion du cortex visuel ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des complications incluent des troubles cognitifs, des problèmes de coordination et des difficultés d'apprentissage."
}
},
{
"@type": "Question",
"name": "Comment l'hémianopsie affecte-t-elle la vie quotidienne ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'hémianopsie peut compliquer la conduite, la lecture et d'autres activités nécessitant une vision complète."
}
},
{
"@type": "Question",
"name": "Quels risques sont associés à l'agnosie visuelle ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'agnosie peut entraîner des difficultés dans les interactions sociales et des problèmes d'autonomie."
}
},
{
"@type": "Question",
"name": "Quelles sont les conséquences des migraines fréquentes ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des migraines fréquentes peuvent entraîner des troubles de l'humeur, de l'anxiété et des absences au travail."
}
},
{
"@type": "Question",
"name": "Comment les troubles visuels peuvent-ils affecter l'éducation ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les troubles visuels peuvent nuire à l'apprentissage, nécessitant des adaptations scolaires spécifiques."
}
},
{
"@type": "Question",
"name": "Quels facteurs augmentent le risque de lésions cérébrales ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traumatismes crâniens, les AVC et les maladies neurodégénératives augmentent le risque."
}
},
{
"@type": "Question",
"name": "Comment l'âge influence-t-il les troubles visuels ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le vieillissement peut entraîner une dégénérescence des cellules nerveuses et des troubles visuels."
}
},
{
"@type": "Question",
"name": "Quels rôles jouent les antécédents familiaux ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les antécédents familiaux de troubles neurologiques peuvent augmenter le risque de dysfonction visuelle."
}
},
{
"@type": "Question",
"name": "Comment le diabète affecte-t-il la vision ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le diabète peut entraîner des complications oculaires comme la rétinopathie diabétique, affectant la vision."
}
},
{
"@type": "Question",
"name": "Quels comportements augmentent le risque de migraines ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Le stress, le manque de sommeil et une mauvaise alimentation peuvent déclencher des migraines."
}
}
]
}
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This paper describes the use of impulse control of an acoustic field to create complex and precise particle patterns and then dynamically manipulate them. We first demonstrate that the motion of a par...
Distributed acoustic sensing techniques based on Rayleigh scattering have been widely used in many applications due to their unique advantages, such as long-distance detection, high spatial resolution...
Investigating whether the Acoustic Voice Quality Index (AVQI) and the Acoustic Breathiness Index (ABI) are valid and comparable to previous unmasked measurements if the speaker wears a surgical mask o...
A convenience sample of 31 subjectively healthy participants was subjected to AVQI and ABI voice examination four times: Twice wearing no mask, once with a surgical mask and once with a FFP-2 mask as ...
Sixty-two percent of the AVQI readings without a mask represented perfectly healthy voices, the largest AVQI without a mask value was 4.0. The mean absolute difference in AVQI was 0.45 between the mea...
Based on a convenience sample of healthy or only mildly impaired voices wearing CoViD-19 protective masks does not substantially impair the results of either AVQI or ABI results....
This study investigates the perceptual and acoustic correlates of gender in prepubertal voices. The study is part of a longitudinal project analyzing recordings of circa 60 German primary school child...
Spontaneous and content-controlled audio recordings were made of 62 first-grade children (29 girls, 33 boys; age: 6- to 7-year-olds) from two German primary schools. Information on gender conformity w...
Measures of self-reported gender conformity differ significantly between the boys and the girls. Sixteen of the 62 children show unambiguous gender attributions in the listening experiment. A hierarch...
Fundamental frequency plays an important role in influencing perceptual judgments, whereas sibilant spectra are correlated with gender conformity. In further listening experiments, we will examine in ...
Earthquake focal mechanisms provide critical in-situ insights about the subsurface faulting geometry and stress state. For frequent small earthquakes (magnitude< 3.5), their focal mechanisms are routi...
Acoustic and phonemic processing are understudied in aphasia, a language disorder that can affect different levels and modalities of language processing. For successful speech comprehension, processin...
Long-term monitoring of epilepsy patients outside of hospital settings is impractical due to the complexity and costs associated with electroencephalogram (EEG) systems. Alternative sensing modalities...
Acoustic signals from an existing database, were processed, to extract their Mel-frequency Cepstral Coefficients (MFCCs) which were used to train RUSBoost classifiers to identify ictal and non-ictal a...
Tested on 667 hours of acoustic data acquired from 15 patients with at least one seizure, the algorithm achieved a detection sensitivity of 88.1% (95% CI: 79%-97%) from a total of 36 seizures, out of ...
The results demonstrated for the first time the ability to identify seizures using acoustic internal body signals acquired on the neck....
The results of this paper validate the feasibility of using internal physiological sounds for seizure detection, which could potentially be of use for the development of novel, wearable, very simple t...
There is a growing interest for commercial applications of Unmanned Aerial Vehicles, but important foundations for an assessment, among others about noise, are missing. This contribution specifically ...
Rolling is a ubiquitous transport mode utilized by living organisms and engineered systems. However, rolling at the microscale has been constrained by the requirement of a physical boundary to break t...
As biodiversity decreases worldwide, the development of effective techniques to track changes in ecological communities becomes an urgent challenge. Together with other emerging methods in ecology, ac...