ΦΥΣΙΚΟΜΑΘΗΜΑΤΙΚΟ ΜΟΝΤΕΛΟ ΣΥΣΧΕΤΙΣΗΣ ΝΕΥΡΟΑΝΑΤΟΜΙΚΟΥ ΥΠΟΣΤΡΩΜΑΤΟΣ ΚΑΙ ΑΠΟΚΡΙΣΗΣ ΑΚΟΥΣΤΙΚΩΝ ΠΡΟΚΛΗΤΩΝ ΔΥΝΑΜΙΚΩΝ
Abstract
AUDITORY BRAINSTEM EVOKED POTENTIALS HAVE LIMITATIONS IN THEIR CLINICAL USE FOR DETECTION OF NEUROLOGICAL DISORDERS. THE CLINICAL VALUE OF THE ABR DEPENDS ON THE SENSITIVITY AND THE SPECIFICITY OF THEIR PARAMETERS. THE VALUE OF THEABRS IN THE ASSESMENT AND DETECTION OF NEUROLOGICAL DISORDERS COULD BE CONSIDERABLY ENHANCED, IF THE NORMATIVE STANDARDS OF ABR CHARACTERISTIC PARAMETERS TAKE INTO ACCOUNT ALL OTHER SYSTEMATIC SOURCES OF VARIANCE. THE EXPERIMENTAL DATA WERE FITTED ACCORDING TO THE THEORETICAL CURVE OF THE POTENTIAL ON THE SURFACE OF A THREE-CONCENTRIC SPHERE MODEL, REPRESENTING THE HUMAN HEAD.NORMALIZATION OF THE LATENCIES AND AMPLITUDES REDUCED SUBSTANTIALLY THEIR DISPERSION AND CONSEQUENTLY INCREASED THE SENSITIVITY OF THE METHOD. MOREOVERTHE USE OF SPECIFIC-FREQUENCY STIMULI INCREASED THE SPECIFICITY OF THE METHOD IN DETECTION OF THE NEUROLOGICAL DISORDERS AFFECTING THE AUDITORY SYSTEM.HIGH SENSITIVITY AND SPECIFICITY INCREASED THE DIAGNOSTI ...
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