Biomaterial Database

A signal analysis technique of vestibulo-ocular reflex stimulated with impulsive head movements. 2006

Martti Juhola, and Heikki Aalto, and Timo Hirvonen

Department of Computer Sciences, 33014 University of Tampere, Tampere, Finland.

Eye movements have been investigated in several areas of medicine and also elsewhere, such as in psychology or even in the development of human-computer interfaces. In the last few years we have designed a technique to stimulate, measure and analyze vestibulo-ocular reflex eye movements. In the otoneurological literature these are seen as a novel and promising means of revealing certain disorders and diseases associated with vertigo. Vestibulo-ocular reflex is stimulated by impulsive head movements. We developed the present pattern recognition technique to detect the stimulus (impulsive head movements) and the vestibulo-ocular reflex (response eye movements) generated from signals and to compute the latency and the gain values between them. Using our technique to calculate these attributes, we obtained clearly different results for a group of 22 dizzy patients than for a group of 30 healthy subjects.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D010363	Pattern Recognition, Automated	In INFORMATION RETRIEVAL, machine-sensing or identification of visible patterns (shapes, forms, and configurations). (Harrod's Librarians' Glossary, 7th ed)	Automated Pattern Recognition,Pattern Recognition System,Pattern Recognition Systems
D012027	Reflex, Vestibulo-Ocular	A reflex wherein impulses are conveyed from the cupulas of the SEMICIRCULAR CANALS and from the OTOLITHIC MEMBRANE of the SACCULE AND UTRICLE via the VESTIBULAR NUCLEI of the BRAIN STEM and the median longitudinal fasciculus to the OCULOMOTOR NERVE nuclei. It functions to maintain a stable retinal image during head rotation by generating appropriate compensatory EYE MOVEMENTS.	Vestibulo-Ocular Reflex,Reflex, Vestibuloocular,Reflexes, Vestibo-Ocular,Reflexes, Vestibuloocular,Reflex, Vestibulo Ocular,Reflexes, Vestibo Ocular,Vestibo-Ocular Reflexes,Vestibulo Ocular Reflex,Vestibuloocular Reflex,Vestibuloocular Reflexes
D004244	Dizziness	An imprecise term which may refer to a sense of spatial disorientation, motion of the environment, or lightheadedness.	Lightheadedness,Orthostasis,Dizzyness,Light-Headedness,Light Headedness
D005133	Eye Movements	Voluntary or reflex-controlled movements of the eye.	Eye Movement,Movement, Eye,Movements, Eye
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012815	Signal Processing, Computer-Assisted	Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.	Digital Signal Processing,Signal Interpretation, Computer-Assisted,Signal Processing, Digital,Computer-Assisted Signal Interpretation,Computer-Assisted Signal Interpretations,Computer-Assisted Signal Processing,Interpretation, Computer-Assisted Signal,Interpretations, Computer-Assisted Signal,Signal Interpretation, Computer Assisted,Signal Interpretations, Computer-Assisted,Signal Processing, Computer Assisted
D014717	Vertigo	An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear (EAR, INNER); VESTIBULAR NERVE; BRAINSTEM; or CEREBRAL CORTEX. Lesions in the TEMPORAL LOBE and PARIETAL LOBE may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)	CNS Origin Vertigo,Central Nervous System Origin Vertigo,Positional Vertigo,Spinning Sensation,Vertigo, Brain Stem,Vertigo, Brainstem,Vertigo, Central Nervous System Origin,Vertigo, Central Origin,Vertigo, Constant,Vertigo, Essential,Vertigo, Intermittant,Vertigo, Paroxysmal,Vertigo, Peripheral,Vertigo, Subjective,Brain Stem Vertigo,Brain Stem Vertigos,Brainstem Vertigo,Brainstem Vertigos,CNS Origin Vertigos,Central Origin Vertigo,Central Origin Vertigos,Constant Vertigo,Constant Vertigos,Essential Vertigo,Essential Vertigos,Intermittant Vertigo,Intermittant Vertigos,Origin Vertigo, CNS,Origin Vertigo, Central,Origin Vertigos, CNS,Origin Vertigos, Central,Paroxysmal Vertigo,Paroxysmal Vertigos,Peripheral Vertigo,Peripheral Vertigos,Sensation, Spinning,Sensations, Spinning,Spinning Sensations,Subjective Vertigo,Subjective Vertigos,Vertigo, CNS Origin,Vertigo, Positional,Vertigos,Vertigos, Brain Stem,Vertigos, Brainstem,Vertigos, CNS Origin,Vertigos, Central Origin,Vertigos, Constant,Vertigos, Essential,Vertigos, Intermittant,Vertigos, Paroxysmal,Vertigos, Peripheral,Vertigos, Subjective
D019416	Head Movements	Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans.	Head Movement,Movement, Head,Movements, Head