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Wernicke's encephalopathy presenting with confusion and hearing loss.
BMJ Case Rep
January 2025
Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
We present a case of a male in his early 50s assessed in the emergency department with a seemingly clear alcohol history but with classic symptoms of Wernicke's encephalopathy (WE): disorientation, gait ataxia and vertical nystagmus. He also had significant bilateral hearing loss and profound anterograde amnesia. Neuroimaging revealed hallmark signs of WE, including symmetrical T2/fluid-attenuated inversion recovery hyperintensity in the medial thalami.
View Article and Find Full Text PDFHippocampal Lesions in Male Rats Produce Retrograde Memory Loss for Over-Trained Spatial Memory but Do Not Impact Appetitive-Contextual Memory: Implications for Theories of Memory Organization in the Mammalian Brain.
J Neurosci Res
January 2025
Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, Alberta, Canada.
Article Synopsis
- The study investigates the role of the hippocampus (HPC) and amygdala in memory formation, particularly focusing on retrograde amnesia that occurs after HPC disruption.
- Findings reveal that damage to the HPC does not affect conditioned place preference (CPP) tasks, which rely on the basolateral amygdala, suggesting that not all learning tasks require HPC involvement.
- Additional experiments using the Morris water task indicate that while HPC damage impairs performance, other memory networks can't fully compensate when certain training methods are used, highlighting the complexity of memory processing.
Clinical features and prognosis of transient global amnesia in Israel: 6 years' single-center experience.
Acta Neurol Belg
December 2024
Department of Neurology, Shamir Medical Center, Be`er Ya`akov, Israel.
Background: Transient global amnesia (TGA) is a benign neurological syndrome of unknown etiology, causing sudden anterograde amnesia that lasts up to 24 h. During the episode of TGA, other cognitive functions are normal. This is the first study describing the characteristics of the disease in Israel.
View Article and Find Full Text PDFAnterograde amnesia recurrence in temporal lobe epilepsy with amygdala-enlargement.
BMJ Case Rep
December 2024
Department of Psychiatry, Osaka University, Suita, Osaka, Japan.
Temporal lobe epilepsy (TLE) can cause different types of memory impairments. Here, we report a case of immediate improvement of memory impairment following antiepileptic drug (AED) treatment in a patient with TLE with amygdala enlargement (TLE-AE), who rapidly developed recurrence. The patient was a man in his 60s whose family members complained of his amnesia.
View Article and Find Full Text PDFDamaged Relay Station: EEG Neurofeedback Training in Isolated Bilateral Paramedian Thalamic Infarct.
Neurol India
November 2024
Department of Clinical Psychology, National Institute of Mental Health and Neuro Sciences, Bangalore, Karnataka, India.
Stroke is a major public health concern and leads to significant disability. Bilateral thalamic infarcts are rare and can result in severe and chronic cognitive and behavioral disturbances-apathy, personality change, executive dysfunctions, and anterograde amnesia. There is a paucity of literature on neuropsychological rehabilitation in patients with bilateral thalamic infarcts.
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