Results 191 to 200 of about 148,317 (230)
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1967
Publisher Summary The retrograde amnesia (RA) phenomenon occurs in both animals and man and overwhelming evidence exists showing that a single electroconvulsive shock (ECS) treatment given after acquisition produces RA. Because ECS constitutes such a reliable RA treatment, drugs can be studied for their ability to duplicate the effects of this ...
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Publisher Summary The retrograde amnesia (RA) phenomenon occurs in both animals and man and overwhelming evidence exists showing that a single electroconvulsive shock (ECS) treatment given after acquisition produces RA. Because ECS constitutes such a reliable RA treatment, drugs can be studied for their ability to duplicate the effects of this ...
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Caudate stimulation and retrograde amnesia: Amnesia threshold and gradient
Behavioral Biology, 1972This experiment determined the threshold stimulation intensity needed for production of retrograde amnesia with 60 Hz caudate stimulation. With the stimulation parameters used, the necessary intensity is between 1 and 1.5 mA. This stimulation is an effective amnesic agent when administered 15 min, but not 60 min, after training.
Paul E. Gold, Richard A. King
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Retrograde amnesia in a patient with retrosplenial tumour
Neurocase, 1998Abstract We describe a patient who developed a pure amnesic syndrome due to anaplastic astrocytoma in the retrosplenial region. A dense retrograde amnesia for personal events characterized the syndrome. Learning of new verbal information was spared, while learning of visual material remained persistently poor.
Anna Maria Di Betta +3 more
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[Psychogenic Retrograde and Anterograde Amnesia].
Brain and nerve = Shinkei kenkyu no shinpo, 2018Patients with dissociative retrograde amnesia, under the influence of high stress, lose access to past autobiographical event memories that should have been remembered. Patients with dissociative anterograde amnesia cannot recall extremely emotional experiences.
Haruo Yoshimasu +2 more
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Retrograde Amnesia in Free Recall
Science, 1969Supervention of high-priority events in a series of events constituting a free-recall task interferes with postexposure processing of mnemonic information about immediately preceding events, with the result that recall of these preceding events is impaired. Recall of immediately following events is not affected.
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Retrograde amnesia: clinical and methodological caveats
Neuropsychologia, 1998Several clinical and methodological caveats are outlined as they pertain to retrograde amnesia research, and data relevant to these caveats are presented. Three caveats in particular are noted in relation to recently published cases of marked retrograde amnesia; (i) temporal lobe epilepsy may influence memory for news events; (ii) there may be ...
L.D Kartsounis +3 more
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The syndrome of pure retrograde amnesia
Neurocase, 1998Three cases of pure retrograde amnesia (PRA) are reported. The sudden onset of PRA occurred after minor head trauma in two cases (CDA and AF) and after emotional stress in one case (GC). No structural brain damage was apparent in any of the three patients. Evidence of temporal gradient was found.
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Concussion-induced retrograde amnesia in rats
Physiology & Behavior, 1995Three experiments were conducted to investigate the characteristics of retrograde amnesia (RA) induced by concussion in rats. In Experiment 1, rats receiving experimental concussion shortly after training in a single punishment trial exhibited severe forgetting on a retention test 48 h later. In the second experiment, rats receiving a concussion within
Yili Zhou, David C. Riccio
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Nitroprusside and ECS-Induced Retrograde Amnesia
The Journal of ECT, 2001Previous research found that the administration of verapamil and felodipine immediately before electroconvulsive shocks (ECS) attenuated ECS-induced retrograde amnesia. This study examined whether sodium nitroprusside, an antihypertensive drug that does not affect calcium channels, has a similar action.
Shobha Guido +4 more
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