Results 241 to 250 of about 20,218 (296)
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THE ELDERLY AND THEIR ANKLE JERKS
Lancet, The, 1984The ankle jerks of 200 consecutive patients admitted to a geriatric department were assessed on the second or third hospital days by two independent observers. The test consisted of a "plantar" rather than Achilles tendon strike with a standard patellar hammer. 188 patients had ankle jerks.
R A Kenny
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Geomagnetic jerks in the polar regions
Geophysical Research Letters, 2009 The occurrence of geomagnetic jerks over the Arctic and Antarctic regions is here investigated. Maps of geomagnetic secular acceleration over the polar regions are produced from the CM4 and CHAOS models and the occurrence of geomagnetic jerks is ...
R Tozzi, Paola De Michelis
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Event-related fMRI of Myoclonic Jerks Arising from Dysplastic Cortex
Epilepsia, 2006 Background: Malformations of cortical development can cause epileptiform activity and myoclonic jerks, yet EEG correlates of jerks can be difficult to obtain.
John S Archer +2 more
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Geomagnetic Jerks: Rapid Core Field Variations and Core Dynamics
Space Science Reviews, 2010 International audienceThe secular variation of the core field is generally characterized by smooth variations, sometimes interrupted by abrupt changes, named geomagnetic jerks. The origin of these events, observed and investigated for over three decades,
Mioara Mandea, Richard Holme, M A Pais
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To jerk or not to jerk: A clinical pathophysiology of myoclonus
Revue Neurologique, 2016Myoclonus is a sudden brief (20-250 ms) contraction (positive myoclonus), or a brief and sudden cessation of tonic muscle (negative myoclonus) inducing a simple jerky movement of body part. Myoclonus could have different origins in almost every part of the nervous system, from the cortex to the peripheral nerve, sharing a large panel of etiologies.
E, Apartis, L, Vercueil
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Southern Medical Journal, 1981
Hysterical "epidemics" of "epilepsy" are well known in Eastern and Western cultures. A unique situation in the United States in the 19th and 20th centuries was the American religious movement, the setting in which "the jerks" occurred. Descriptions of various types of "jerks," including dancing, barking, laughing exercise, running exercise, and singing
E W, Massey, W L, Brannon, T L, Riley
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Hysterical "epidemics" of "epilepsy" are well known in Eastern and Western cultures. A unique situation in the United States in the 19th and 20th centuries was the American religious movement, the setting in which "the jerks" occurred. Descriptions of various types of "jerks," including dancing, barking, laughing exercise, running exercise, and singing
E W, Massey, W L, Brannon, T L, Riley
openaire +2 more sources
Hypnic jerks: neurophysiological characterization of a new motor pattern
Sleep Medicine, 2014 Hypnic jerks (HJs) are physiological, non-periodic, myoclonic bodily jerks, occurring mainly at sleep onset [1]. HJs occasionally reach abnormal proportions in frequency and degree (intensified HJs) impeding to fall or stay asleep [2].
Giovanna Calandra-Buonaura +2 more
exaly +2 more sources
The origin of geomagnetic jerks
Nature, 2002Geomagnetic jerks, which in the second half of the twentieth century occurred in 1969 (refs 1, 2), 1978 (refs 3, 4), 1991 (ref. 5) and 1999 (ref. 6), are abrupt changes in the second time-derivative (secular acceleration) of the Earth's magnetic field.
Jeremy, Bloxham +2 more
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Ergot, the “Jerks,” and Revivals
Clinical Neuropharmacology, 1984Epidemics of epilepsy, a form of mass hysteria, were known in Eastern and Western cultures in the 17th and 18th centuries. A unique situation in the United States during the 19th centurey was the frontier religious movement, the setting in which the "jerks" occurred.
J M, Massey, E W, Massey
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Annals of Neurology, 1983
AbstractA 39‐year‐old woman with a familial trait for myoclonic jerks of the neck presented with spontaneous 5‐ to 40‐degree single jerks of the eyes, usually upward, each producing a brief interruption in fixation. Eye movement recordings showed the myoclonic ocular jerks to be saccades with variable intersaccadic intervals.
J B, Selhorst, A L, Ochs, R G, Selbst
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AbstractA 39‐year‐old woman with a familial trait for myoclonic jerks of the neck presented with spontaneous 5‐ to 40‐degree single jerks of the eyes, usually upward, each producing a brief interruption in fixation. Eye movement recordings showed the myoclonic ocular jerks to be saccades with variable intersaccadic intervals.
J B, Selhorst, A L, Ochs, R G, Selbst
openaire +2 more sources