منابع مشابه
un 2 00 6 The knee - jerk mapping
We claim to give the definitive theory of what we call the ‘kneejerk mapping’, which is the basis for a class of optimization algorithms introduced by Baum, and promoted by Dempster, Laird, and Rubin under the name ‘EM algorithm’. Introduction We give the definitive theory of the knee-jerk mapping, to be defined below. This mapping has been investigated by many people, most notably Baum ([2], [...
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This study was designed to detect the sensitivity of different methods of eliciting knee jerks and to compare the conventional methods with the newly purposed maneuver. Knee jerk (a deep tendon reflex) was elicited in 123 apparently normal population (77 males and 46 females) with three different methods (1) without applying reinforcement, (2) applying Jendrassik maneuver (strong voluntary cont...
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Tendon jerk (TJ) is one of the most commonly used clinical tests in differential diagnosis of human motor disorders. There remains some ambiguity in the physiological interpretation of the test, especially with respect to its association to the functional status of patients. The TJ test inputs a non-physiological stimuli, but it is unclear to what degree the kinematics generated during the TJ t...
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Two cases are described in which inversion of the quadriceps jerk was observed. It is suggested that the finding of an inverted quadriceps jerk is evidence of a spinal cord lesion at 12, 3, 4 segmental level and has for the lumbar cord the same localising value as the inverted supinator jerk for the cervical cord.
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ژورنال
عنوان ژورنال: American Journal of Psychiatry
سال: 1909
ISSN: 0002-953X,1535-7228
DOI: 10.1176/ajp.65.3.471