نتایج جستجو برای: amnesia

تعداد نتایج: 4906  

Journal: :Journal of neurology, neurosurgery, and psychiatry 1999
A Z Zeman

Once seen, the syndrome of transient global amnesia (TGA) is never forgotten. Patients abruptly discover that they are unable to recall recent events. Their perplexity is deepened by an inability to retain new information. This leads to repetitive but futile questioning of their companions. Attacks typically last about 4 hours. By the next day patients report that their memory is back to normal...

شاهین, مریم السادات, نصری, سیما, پیری, مرتضی,

Background and Objective: Ethanol and nicotine increase dopamine release in different parts of the brain such as the nucleus accumbens and the hippocampus. Dopamine D1 receptors have been detected in dorsal hippocampus known as a key brain region that seems to mediate some behavioral effect of ethanol and nicotine. The present study was carried out to determine the influence of dopamine D1 rece...

2009
Gülçin BENBİR Sibel ERTAN Sait ALBAYRAM Batuhan KARA Hakan SELÇUK Turan ERTAN

Objects: Different theories were suggested on the etiopathogenesis of transient global amnesia. Methods: We demonstrate a patient with transient global amnesia, in whom, a transient hyperintense signal change on left hippocampus was detected in diffusionand T2weighted magnetic resonance images. Conclusion: The absence of vascular risk factors or atherosclerotic changes in neuroimaging, in addit...

Journal: :Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine 2015
Johna K Register-Mihalik Valerie J De Maio Holly L Tibbo-Valeriote John D Wooten

OBJECTIVE The current study examines the demographics, injury characteristics, and outcomes associated with the presence of postconcussion amnesia in young concussion clinic patients. DESIGN Cross-sectional, retrospective clinical cohort. SETTING Concussion services clinic. PATIENTS Pediatric and adolescent concussion services program patients, presenting within 10 days postinjury, aged 1...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1982
B T Woods W Schoene L Kneisley

A 57-year-old woman developed severe generalised amnesia following an embolic stroke. The amnesia persisted until her death nine months later. The left hemisphere had a large infarction of the medial temporal-occipital region, while the right showed only a small infarct limited to the posterior two-thirds of the hippocampus. If bilateral lesions are necessary for the production of permanent amn...

رئوفی, نسرین, شاهین, مریم السادات, مشفق, اعظم, پیری, مرتضی,

Background and Objective: Nitric oxide mediated some behavioral effects of nicotine and ethanol in the nucleus accumbens. In the present study, the effects of L-NAME (nitric oxide synthase inhibitor) in the nucleus accumbens on nicotine’s effect in ethanol-induced amnesia were investigated. Materials and Methods: In this experimental study 96 adult male wistar rats were used (12 groups)...

Journal: :Journal of neurology, neurosurgery, and psychiatry 1997
N S King

This case study describes post-traumatic stress disorder (PTSD) and head injury after a road traffic accident involving a pedestrian. Previous studies have proposed two mechanisms by which this dual diagnosis may occur: (1) when post-traumatic amnesia and retrograde amnesia are small or non-existent and (2) when non-declarative memory systems for the traumatic event are in operation. This case ...

2013
Ju-Young Na Hee-Yun Chae So-Young Huh Meyung-Kug Kim Bong-Goo Yoo

Transient global amnesia (TGA) is a temporary amnestic syndrome characterized by anterograde amnesia and variable retrograde amnesia without other focal neurological deficits. Neuropsychological tests during attack in TGA have been rarely reported. We report a 62-year-old man with TGA who was evaluated with detailed neuropsychological tests during attack. Ictal neuropsychological tests showed e...

2009
Jan H Schakelaar

INTRODUCTION Transient global amnesia is a classical disease. It presents with an abrupt onset of anterograde amnesia. It's incidence and recurrence rate is low. CASE PRESENTATION In this case report a 54-year old white male is presented with two attacks of loss of memory within a year. CONCLUSION Recurrent transient global amnesia is rare. Recognition and explaining the good nature of the ...

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