Verbal memory and learning ability were determined before the operation and immediately 3-4 weeks after stereotactic surgery in 11 patients with extrapyramidal motor disturbances treated by ventrolateral (VL and Vim) thalamotomy. Preoperative examinations demonstrated disturbances of short-term verbal memory with narrowing of its extent and increased susceptibility of the trace to interference. Long-term memory was disturbed also, with presence of difficulties in recall and difficulties in memorization of verbal materials. Directly after the operation, in relation to the preoperative testing, increased disturbances were demonstrated in all stages of verbal memory, after damage to the border area of VL and Vim nuclei in the left as well as in the right thalamus. It was possible to detect some functional differentiation between thalamic lesions, with a tendency for increased disturbances of short-term verbal visual memory after right-sided thalamotomy and verbal auditory memory after left-sided thalamotomy.
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J Prev Alzheimers Dis
January 2025
Université Paris Cité, INSERM U1153, Centre of Research in Epidemiology and Statistics, Team Epidemiology of Ageing and Neurodegenerative Diseases, 10 avenue de Verdun, 75010 Paris, France; Faculty of Brain Sciences, University College London, 38-50 Bidborough Street, WC1H 9BT London, UK.
Background And Objectives: Primary care is often the first point of contact for patients with cognitive complaints, making initial cognitive screening an essential step to avoid delays in diagnosing Alzheimer's disease (AD) at an early stage. We developed MemScreen, a self-administered smartphone application that assesses overall cognition and verbal memory, and evaluated its ability to detect mild cognitive impairment (MCI) in both general and clinical populations.
Methods: We conducted two validation cohort studies: (1) UK-based Whitehall II cohort study (13th wave, 2018-2022) involving a general population (MCI defined by poor performance on a global cognitive score), and (2) five French memory clinics involving patients without dementia (amnestic MCI defined by the Free and Cued Selective Reminding Test).
Gynecol Oncol
January 2025
Department of Obstetrics, Gynaecology and Newborn Health, University of Melbourne and The Royal Women's Hospital, Melbourne, Victoria, Australia. Electronic address:
Objective: Women with BRCA1/2 pathogenic variants considering risk-reducing bilateral oophorectomy (RRSO) may be concerned about potential effects of surgical menopause on cognition. Whether RRSO affects cognition and whether hormone therapy (HT) modifies this effect remains uncertain. This study aimed to prospectively measure the effect of premenopausal RRSO on cognition and the modifying effects of HT up to 24 months.
View Article and Find Full Text PDFNeurology
February 2025
School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia.
Background And Objectives: Lipid metabolism in older adults is affected by various factors including biological aging, functional decline, reduced physiologic reserve, and nutrient intake. The dysregulation of lipid metabolism could adversely affect brain health. This study investigated the association between year-to-year intraindividual lipid variability and subsequent risk of cognitive decline and dementia in community-dwelling older adults.
View Article and Find Full Text PDFNeurol Neuroimmunol Neuroinflamm
March 2025
Department of Neurology and Experimental Neurology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt- Universität zu Berlin.
Background And Objectives: Cognitive deficits represent a major long-term complication of anti-leucine-rich, glioma-inactivated 1 encephalitis (LGI1-E). Although severely affecting patient outcomes, the structural brain changes underlying these deficits remain poorly understood. In this study, we hypothesized a link between white matter (WM) networks and cognitive outcomes in LGI1-E.
View Article and Find Full Text PDFPLoS One
January 2025
Clinic of Neonatology, Department of Mother-Woman-Child, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.
It has been widely assessed that very preterm children (<32 weeks gestational age) present language and memory impairments compared with full-term children. However, differences in their underlying semantic memory structure have not been studied yet. Nevertheless, the way concepts are learned and organized across development relates to children's capacities in retrieving and using information later.
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