Apparatus and method for noninvasive testing of voluntary and in

Details Apparatus and method for noninvasive testing of voluntary and in Apparatus and method for noninvasive testing of voluntary and in

1987-07-21

1989-08-08

Howell, Kyle L.

Surgery

Truss

Pad

340576, A61B 500

Patent

active

048543292

ABSTRACT:
Apparatus and method are disclosed for providing a noninvasive testing of the status of the motor muscle response of an individual by testing specific voluntary and involuntary motor responses. The voluntary motor response is tested by having the individual under test enter a preselected code sequence (for example, in a keypad) and measuring the parameters associated with the sequence entry. The measured parameters are compared with baseline, non-impaired, parameters for that individual performing the same activity. The involuntary motor response is measured by introducing a transient light stimulus to the pupil of the eye and measuring the response and recovery parameters of the pupil to the light stimulus. The measured involuntary response parameters to the light stimulus is also compared to baseline, non-impaired parameters for the individual responding to the same situation. By comparing measured response parameters to baseline response parameters, non-impairment as an individualized (as contrasted with a statistical) condition can be determined. The tests are positive in nature, in that they designate non-impaired performance of people, identifying impaired persons only be default and not suggesting the source of impairment.

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