Method of measuring dynamic (a) auditory and (b) tactile sequencing or tracking, and diagnosing cerebellar-vestibular dysfunction and dysmetric dyslexia
The discovery that the condition of dysmetric dyslexia results from dysfunctioning of the cerebellar-vestibular underlies the method of U.S. Pat. No. 3,842,822 issued on Oct. 22, 1974, which method uses blurring and scrambling of sequential visual stimuli to identify and measure ocular motor coordination, i.e. ocular fixation and sequential scanning abilities. As an improvement and/or alternative to the above method, the within methods, which also are useful in identifying dysmetric dyslexic children in an examination group, use response to acoustical and/or tactile stimulation, rather than response to visual stimuli, to identify said condition.
For a dysmetric dyslexia-identifying test herebefore administered to a mixed audience of children, some being dyslexic and others not, the administration thereof now over the Internet to a dispersed audience preferably consisting of a child in the singular in facing relation to an Internet display module, to thereby obviate by this dispersion any audience-influencing behavior which heretofore affected the test results.
A quantitative visual test measures the rate at which an individual is able to complete a defined visual task, either on paper or on a self illuminated screen. The task involves comparing a plurality of similar appearing numbers to determine if they are an exact match within predetermined levels of time. Inability to complete the test within the predetermined level of time indicates the likelihood that the individual will exhibit visual stress and dyslexia. Individuals under such stress are then remediated by the use of adjusted lighting environments sometimes including other visual aids.
The specification discloses a diagnostic device and method for detecting various neurological conditions, particularly dyslexia. Eye movement patterns of the subject to be tested are separated into saccadic movement (both progressive and regressive) vergence, pursuit movements and fixations, and the subject's specific eye movement pattern, as evaluated against a specific stimulus, and normal patterns is used for diagnostic purposes. A variety of eye movement detectors is disclosed, together with a sampling means which evaluates the eye position at intervals of less than 10 milliseconds. A data processing means is used to isolate the significant samples and categorizes the retained data samples into the foregoing eye movements. The eye movement patterns are then evaluated against a statistical data base to determine the kind and severity of the diagnosed condition. For example, dyslexic individuals exhibit a high number of regressive saccades, while drug and alcohol impaired individuals are unable follow a stimulus with a pursuit movement, but must rely on a series of short saccades.
The specification discloses a diagnostic device and method for detecting various neurological conditions, particularly dyslexia. Eye movement patterns of the subject to be tested are separated into saccadic movement (both progressive and regressive) vergence, pursuit movements and fixations, and the subject's specific eye movement pattern, as evaulated against a specific stimulus, and normal patterns is used for diagnostic purposes. A variety of eye movement detectors is disclosed, together with a sampling means which evaluates the eye position at intervals of less than 10 milliseconds. A data processing means is used to isolate the significant samples and categorizes the retained data samples into the foregoing eye movements. The eye movement patterns are then evaluated against a statistical data base to determine the kind and severity of the diagnosed condition. For example, dyslexic individuals exhibit a high number of regressive saccades, while drug and alcohol impaired individuals are unable follow a stimulus with a pursuit movement, but must relay on a series of short saccades.
