Apparatus and method for noninvasive testing of voluntary and involuntary motor response patterns
First Claim
1. Testing apparatus for on-site testing of motor response impairment of a subject, wherein voluntary and involuntary response baseline parameters along with an identification code are stored on a data card suitable for convenient conveyance by said subject, said testing apparatus comprising:
- data entry means for manually entering data in said testing apparatus, said subject entering subject code in said testing apparatus by means of said data entry means;
voluntary response means for measuring voluntary response parameters resulting from manipulation of said data entry means according to a predetermined pattern;
involuntary response means for measuring involuntary response parameters associated with changes in a pupil of said eye resulting from a transient light stimulus;
card reading means for entering data from said data card into said apparatus; and
comparison means for comparing said subject code with said identification code;
a positive comparison between said subject code and said identification code permitting further operation of said comparison means, said comparison means for comparing said voluntary and involuntary response baseline parameters stored on said data card with measured voluntary and involuntary response parameters from said voluntary response means and said involuntary response means, said comparison means providing a signal indicating when said subject'"'"'s voluntary and involuntary response parameters meet preselected criteria without operator intervention.
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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.
29 Citations
12 Claims
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1. Testing apparatus for on-site testing of motor response impairment of a subject, wherein voluntary and involuntary response baseline parameters along with an identification code are stored on a data card suitable for convenient conveyance by said subject, said testing apparatus comprising:
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data entry means for manually entering data in said testing apparatus, said subject entering subject code in said testing apparatus by means of said data entry means; voluntary response means for measuring voluntary response parameters resulting from manipulation of said data entry means according to a predetermined pattern; involuntary response means for measuring involuntary response parameters associated with changes in a pupil of said eye resulting from a transient light stimulus; card reading means for entering data from said data card into said apparatus; and comparison means for comparing said subject code with said identification code;
a positive comparison between said subject code and said identification code permitting further operation of said comparison means, said comparison means for comparing said voluntary and involuntary response baseline parameters stored on said data card with measured voluntary and involuntary response parameters from said voluntary response means and said involuntary response means, said comparison means providing a signal indicating when said subject'"'"'s voluntary and involuntary response parameters meet preselected criteria without operator intervention. - View Dependent Claims (2, 3, 4, 5)
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6. The method of on-site testing of nonimpairment of motor muscle activity by a subject, said method comprising the steps of:
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testing an involuntary motor response of a subject as a function of time when said involuntary motor response is nonimpaired; storing a first set of time dependent parameters resulting from said testing of said involuntary motor response on a data card, said data card including subject identification data; testing a voluntary motor response of said subject as a function of time when said voluntary motor response is nonimpaired; storing a second set of time dependent parameters resulting from said voluntary motor response testing on said data card; transferring said first and said second set of response parameters and said identification data from said data card to an on-site testing apparatus; comparing said identification data with data entered manually in said test apparatus to confirm a relationship between said data card and said subject; repeating said involuntary motor response testing step by said subject by means of said on-site testing apparatus and generating a third set of time dependent parameters derived therefrom; comparing said first set of parameters with said set of parameters without operator intervention; repeating said voluntary motor response testing step by said subject by means of said on-site testing apparatus and generating a fourth set of time dependent parameters derived therefrom; comparing said second set of parameters with said fourth set of parameters without operator intervention; and indicating nonimpairment of said subject'"'"'s involuntary motor response when said relationship is confirmed, said first and said third set of time dependent parameters are within specified tolerances and said second and said fourth set of time dependent parameters are within preselected tolerances. - View Dependent Claims (7, 8)
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9. Testing apparatus for on-site testing for nonimpairment of motor muscle response of a subject, said apparatus comprising:
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card storage means for storing subject identification data, subject involuntary motor response baseline nonimpaired paramenters and subject voluntary motor response baseline and nonimpaired parameters; card reading apparatus for transferring said subject identification data, said involuntary response baseline parameters and said voluntary response baseline parameters to said testing apparatus; stimulus means for providing a transient stimulus to a pupil of an eye of said subject; first measuring means for measuring a first set of parameters associated with a time varying response of said pupil to said transient stimulus, wherein said pupil time varying response is determined by a time dependent of a number of pixels having a color of said pupil; keyboard entry means for entering data manually in said testing apparatus, wherein said subject enters code data related to said subject identification number; second measuring means for measuring a second set of parameters determined by measuring a time dependent of activation of a preselected sequence of key units of said keyboard entry means; comparison means for comparing said first set of parameters with said involuntary response parameters, comparing said second set of said parameters with said voluntary response parameters and for comparing said subject identification data with said code data; and indicator means for indicating when said first set of parameters and said involuntary response parameters, said second set of parameters and said voluntary response parameters and said code data and said subject identification data have predetermined relationships. - View Dependent Claims (10, 11, 12)
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Specification