Perception du mouvement : Questions médicales fréquentes
Nom anglais: Motion Perception
Descriptor UI:D009039
Tree Number:F02.463.593.932.567
Termes MeSH sélectionnés :
Diffusion Tensor Imaging
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"description": "Comment évaluer la perception du mouvement ?\nQuels examens sont recommandés ?\nQuels signes indiquent un trouble de la perception ?\nQuand consulter un spécialiste ?\nLa perception du mouvement peut-elle être testée chez les enfants ?",
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"description": "Quelles complications peuvent survenir ?\nLes troubles de la perception peuvent-ils affecter la vie quotidienne ?\nY a-t-il un risque accru de dépression ?\nLes complications peuvent-elles être évitées ?\nLes troubles de la perception augmentent-ils le risque d'accidents ?",
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"description": "Quels sont les facteurs de risque principaux ?\nL'âge influence-t-il la perception du mouvement ?\nLes troubles de l'oreille interne sont-ils un facteur ?\nLe stress chronique est-il un facteur de risque ?\nLes antécédents familiaux jouent-ils un rôle ?",
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"@type": "Question",
"name": "Comment évaluer la perception du mouvement ?",
"position": 1,
"acceptedAnswer": {
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"text": "Des tests psychophysiques et des évaluations cliniques sont utilisés."
}
},
{
"@type": "Question",
"name": "Quels examens sont recommandés ?",
"position": 2,
"acceptedAnswer": {
"@type": "Answer",
"text": "L'IRM et l'électroencéphalogramme peuvent aider à diagnostiquer des troubles."
}
},
{
"@type": "Question",
"name": "Quels signes indiquent un trouble de la perception ?",
"position": 3,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des difficultés à suivre des objets en mouvement ou des illusions de mouvement."
}
},
{
"@type": "Question",
"name": "Quand consulter un spécialiste ?",
"position": 4,
"acceptedAnswer": {
"@type": "Answer",
"text": "Si des symptômes de désorientation ou de vertige persistent."
}
},
{
"@type": "Question",
"name": "La perception du mouvement peut-elle être testée chez les enfants ?",
"position": 5,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des tests adaptés peuvent évaluer la perception chez les jeunes enfants."
}
},
{
"@type": "Question",
"name": "Quels sont les symptômes d'un trouble de la perception du mouvement ?",
"position": 6,
"acceptedAnswer": {
"@type": "Answer",
"text": "Difficultés à juger la vitesse, la direction ou la distance des objets en mouvement."
}
},
{
"@type": "Question",
"name": "Peut-on ressentir des vertiges ?",
"position": 7,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des vertiges peuvent survenir en raison de troubles de la perception."
}
},
{
"@type": "Question",
"name": "Y a-t-il des effets sur l'équilibre ?",
"position": 8,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des troubles de la perception du mouvement peuvent affecter l'équilibre."
}
},
{
"@type": "Question",
"name": "Les illusions de mouvement sont-elles fréquentes ?",
"position": 9,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elles peuvent se produire, surtout dans des conditions de fatigue ou de stress."
}
},
{
"@type": "Question",
"name": "Les troubles de la perception affectent-ils la vision ?",
"position": 10,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils peuvent entraîner des difficultés visuelles, comme la vision floue."
}
},
{
"@type": "Question",
"name": "Comment prévenir les troubles de la perception ?",
"position": 11,
"acceptedAnswer": {
"@type": "Answer",
"text": "Maintenir une bonne santé générale et éviter les traumatismes crâniens."
}
},
{
"@type": "Question",
"name": "L'exercice régulier aide-t-il ?",
"position": 12,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, l'exercice régulier peut améliorer l'équilibre et la coordination."
}
},
{
"@type": "Question",
"name": "Une alimentation saine est-elle importante ?",
"position": 13,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, une alimentation équilibrée contribue à la santé neurologique."
}
},
{
"@type": "Question",
"name": "Le stress influence-t-il la perception ?",
"position": 14,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress peut aggraver les troubles de la perception du mouvement."
}
},
{
"@type": "Question",
"name": "Des activités cognitives peuvent-elles aider ?",
"position": 15,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des jeux de réflexion et des puzzles stimulent la perception et la cognition."
}
},
{
"@type": "Question",
"name": "Quels traitements sont disponibles ?",
"position": 16,
"acceptedAnswer": {
"@type": "Answer",
"text": "La thérapie cognitive et la rééducation vestibulaire sont couramment utilisées."
}
},
{
"@type": "Question",
"name": "Les médicaments peuvent-ils aider ?",
"position": 17,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, certains médicaments peuvent traiter les symptômes associés, comme les vertiges."
}
},
{
"@type": "Question",
"name": "La thérapie physique est-elle efficace ?",
"position": 18,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, elle peut améliorer l'équilibre et la coordination chez les patients."
}
},
{
"@type": "Question",
"name": "Y a-t-il des approches alternatives ?",
"position": 19,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des techniques comme la méditation et le yoga peuvent aider à la gestion des symptômes."
}
},
{
"@type": "Question",
"name": "Les exercices visuels sont-ils bénéfiques ?",
"position": 20,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des exercices spécifiques peuvent améliorer la perception du mouvement."
}
},
{
"@type": "Question",
"name": "Quelles complications peuvent survenir ?",
"position": 21,
"acceptedAnswer": {
"@type": "Answer",
"text": "Des chutes, des accidents et des troubles de l'équilibre peuvent se produire."
}
},
{
"@type": "Question",
"name": "Les troubles de la perception peuvent-ils affecter la vie quotidienne ?",
"position": 22,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils peuvent rendre les tâches quotidiennes plus difficiles et dangereuses."
}
},
{
"@type": "Question",
"name": "Y a-t-il un risque accru de dépression ?",
"position": 23,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les troubles de la perception peuvent contribuer à des problèmes de santé mentale."
}
},
{
"@type": "Question",
"name": "Les complications peuvent-elles être évitées ?",
"position": 24,
"acceptedAnswer": {
"@type": "Answer",
"text": "Certaines complications peuvent être évitées par une réhabilitation précoce."
}
},
{
"@type": "Question",
"name": "Les troubles de la perception augmentent-ils le risque d'accidents ?",
"position": 25,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, ils augmentent le risque d'accidents domestiques et routiers."
}
},
{
"@type": "Question",
"name": "Quels sont les facteurs de risque principaux ?",
"position": 26,
"acceptedAnswer": {
"@type": "Answer",
"text": "Les traumatismes crâniens, les maladies neurologiques et le vieillissement."
}
},
{
"@type": "Question",
"name": "L'âge influence-t-il la perception du mouvement ?",
"position": 27,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le vieillissement peut altérer la perception et l'équilibre."
}
},
{
"@type": "Question",
"name": "Les troubles de l'oreille interne sont-ils un facteur ?",
"position": 28,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, les troubles vestibulaires affectent la perception du mouvement."
}
},
{
"@type": "Question",
"name": "Le stress chronique est-il un facteur de risque ?",
"position": 29,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, le stress chronique peut exacerber les troubles de la perception."
}
},
{
"@type": "Question",
"name": "Les antécédents familiaux jouent-ils un rôle ?",
"position": 30,
"acceptedAnswer": {
"@type": "Answer",
"text": "Oui, des antécédents familiaux de troubles neurologiques peuvent augmenter le risque."
}
}
]
}
]
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To investigate the role of diffusion tensor imaging (DTI) of optic pathway in patients with idiopathic intracranial hypertension (IIH)....
This study included 41 IIH patients and 22 controls. They underwent DTI of the optic nerve (ON) and optic radiation (OR). Their fractional anostrophy (FA) and mean diffusivity (MD) were calculated by ...
The optic nerve mean FA and MD of patients for reviewer-1 were 0.21 ± 0.047 and 2.189 ± 0.52 ×10...
Our findings suggest that, IIH is associated mainly with pre-chiasmatic or ON involvement rather than post-chiasmatic parenchymal or OR involvement. DTI MD and FA parameters of the ON may be a reliabl...
Taekwondo, which is the most preferred sport among the martial arts, is known to improve individuals physically, spiritually and mentally. The aim of this study is to reveal the effect of teakwondo sp...
Total brain volume and volumes of white matter, gray matter, frontal lobe, precentral gyrus, corticospinal tract, basal nuclei, postcentral gyrus, hippocampus and amigdala and the ratio of these volum...
An increase in total brain volume, gray matter, frontal lobe and precentral gyrus volume in athletes was associated with taekwondo training. When the ratio of brain parts to total brain volume was exa...
The increase in the volume of gray matter, frontal lobe, postcentral gyrus and corticospinal tract together with the brain volume shows that taekwondo exercise contributes to physical, spiritual and m...
The peripheral course of the trigeminal nerves is complex and spans multiple bony foramen and tissue compartments throughout the face. Diffusion tensor imaging of these nerves is difficult due to the ...
We prospectively acquired imaging data from six healthy adult participants with a 3.0-Tesla system, including T2-weighted short tau inversion recovery with variable flip angle (T2-STIR-SPACE) and read...
All nerves in all subjects were tracked beyond the trigeminal ganglion. Tracts in the inferior alveolar and ophthalmic nerve exhibited the strongest signal and most consistently reached the most dista...
This work demonstrates a method for consistently identifying and tracking the major nerve branches of the trigeminal nerve with diffusion tensor imaging....
Chronic substance use and its effects on brain function and structure has long been of interest to clinicians and researchers. Prior cross-sectional comparisons of diffusion tensor imaging (DTI) metri...
A total of 46 participants (21 healthy controls, 25 chronic cocaine users) were recruited from the Richmond, Virginia metropolitan area. Information regarding past and current substance use was collec...
Consistent with previous DTI studies, significant differences were found between fractional anisotropy (FA) and axial diffusivity (AD) CocUD and controls, with CocUD showing lower FA and AD in the rig...
These data align with previously reported declines in white matter coherence in chronic cocaine users. However, it is less clear whether comorbid alcohol consumption results in an additive deleterious...
Diffusion tensor imaging (DTI) has provided great insights into the microstructural features of the developing brain. However, DTI images are prone to several artifacts and the reliability of DTI scal...
Lewis-Sumner syndrome (LSS) is an atypical variant of chronic inflammatory demyelinating polyneuropathy characterized by an asymmetric sensory-motor neuropathy with multifocal distribution. The diagno...
The understanding of white matter (WM) was revolutionized by the emergence of tractography based on diffusion tensor imaging (DTI). Currently, DTI simulations are implemented in preoperative planning ...
WM surgical damage was preoperatively simulated by creating a 3-dimensional volume representing the endoscope or the surgical trajectory. This volume was used as an additional region of interest in th...
The preoperative and postoperative DTI studies of 30 patients undergoing various neurosurgical approaches were processed. The correlation between simulated injuries and postoperative studies was high ...
Presurgical simulation of WM fascicles based on DTI is consistent with postoperative DTI studies. These findings require further validation by neurophysiological and clinical correlation....
Diffusion tensor imaging (DTI) allows the in vivo imaging of pathological white matter alterations, either with unbiased voxel-wise or hypothesis-guided tract-based analysis. Alterations of diffusion ...
There has been growing attention on the effect of COVID-19 on white-matter microstructure, especially among those that self-isolated after being infected. There is also immense scientific interest and...
Dynamic diffusion magnetic resonance imaging (ddMRI) metrics can assess transient microstructural alterations in tissue diffusivity but requires additional scan time hindering its clinical application...
To determine whether a diffusion gradient table can simultaneously acquire data to estimate dynamic and diffusion tensor imaging (DTI) metrics....
Prospective....
Seven healthy subjects, 39 epilepsy patients (15 female, 31 male, age ± 15)....
Two-dimensional diffusion MRI (b = 1000 s/mm...
Fifteen direction DTI was repeated twice for within-session test-retest measurements in healthy subjects. Bland-Altman analysis computed bias and limits of agreement for DTI metrics using test-retest ...
Bland-Altman and ICC analysis using a P-value of 0.05 for statistical significance....
Correlations of mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were strong and significant in gray (ICC > 0.95) and white matter (ICC > 0.95) between standard vs. nested cu...
A nested cubes diffusion gradient table produces tensor-based and dynamic diffusion measurements in a single acquisition....
2 TECHNICAL EFFICACY: Stage 1....