Search results for "Optokinetic stimulation"

showing 3 items of 3 documents

Electronystagmography in the diagnosis of central vertigo.

2011

Objective: Determine the efficacy and applicability of electronystagmography (ENG) testing in the differential diagnosis between peripheral and central vertigo, through the visual-vestibular interaction test, in patients with vertigo.Method: Patients were submitted to ENG recording. Patients sat on a rotatory chair, which was placed in the middle of a rotary rotatory cylindrical chamber. The rotatory chamber was driven by a direct current engine, which turned it clockwise and counterclockwise, and its internal area was covered with 32 black vertical contrast.Results: All patients underwent rotatory vestibular stimulation by Stop test (VOR), optokinetic stimulation (OKN), and contemporary ro…

medicine.medical_specialtygenetic structuresPeripheral vertigoNystagmusAudiologyelectroystagmography central vertigocentral vertigoVertigootorhinolaryngologic diseasesmedicineIn patientVestibular systembiologymedicine.diagnostic_testbusiness.industryOptokinetic reflexbiology.organism_classificationOtorhinolaryngologyElectronystagmographyelectroystagmography; central vertigoelectroystagmographySurgerysense organsmedicine.symptombusinessOptokinetic stimulation
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Optokinetic stimulation affects temporal estimation in healthy humans

2007

The representation of time and space are closely linked in the cognitive system. Optokinetic stimulation modulates spatial attention in healthy subjects and patients with spatial neglect. In order to evaluate whether optokinetic stimulation could influence time perception, a group of healthy subjects performed "time-comparison" tasks of sub- and supra-second intervals before and after leftward or rightward optokinetic stimulation. Subjective time perception was biased by the direction of optokinetic stimulation. Rightward optokinetic stimulation induced an overestimation of time perception compared with baseline and leftward optokinetic stimulation. These results indicate a directional bias…

AdultMalemedicine.medical_specialtyOptokineticgenetic structuresPhotic StimulationCognitive Neurosciencemedia_common.quotation_subjectSpatial abilitySpaceExperimental and Cognitive PsychologyStimulationNystagmusAudiologyAnalysis of Variance; Perceptual Distortion; Humans; Time Perception; Psychophysics; Photic Stimulation; Adult; Cues; Space Perception; Nystagmus Optokinetic; Attention; Female; Functional Laterality; MaleFunctional LateralityTimeNystagmusArts and Humanities (miscellaneous)Optokinetic stimulation; Perception; Space; Time; Adult; Analysis of Variance; Attention; Cues; Female; Functional Laterality; Humans; Male; Nystagmus Optokinetic; Psychophysics; Perceptual Distortion; Photic Stimulation; Space Perception; Time Perception; Cognitive Neuroscience; Experimental and Cognitive Psychology; Neuropsychology and Physiological PsychologyPerceptionDevelopmental and Educational PsychologymedicinePsychophysicsPsychophysicsHumansAttentionNystagmus Optokineticmedia_commonAnalysis of VariancePerceptual DistortionSettore M-PSI/02 - Psicobiologia E Psicologia FisiologicaCognitionSpace TimePerception Optokinetic stimulationTime perceptionNeuropsychology and Physiological PsychologySpace PerceptionTime PerceptionPerceptionFemaleSettore MED/26 - Neurologiamedicine.symptomCuesOptokinetic stimulationPsychologyPhotic StimulationCognitive psychology
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3.2. Brain stem and cerebellar activation during optokinetic stimulation

2007

NeurologyPhysiology (medical)Neurology (clinical)BiologyNeuroscienceSensory SystemsOptokinetic stimulationClinical Neurophysiology
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