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| http://dx.doi.org/10.3389/fnbeh.2013.00161 | DOI Listing |
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Episodic and associative memory from spatial scaffolds in the hippocampus.
Nature
January 2025
Department of Brain and Cognitive Sciences and McGovern Institute, MIT, Cambridge, MA, USA.
Hippocampal circuits in the brain enable two distinct cognitive functions: the construction of spatial maps for navigation, and the storage of sequential episodic memories. Although there have been advances in modelling spatial representations in the hippocampus, we lack good models of its role in episodic memory. Here we present a neocortical-entorhinal-hippocampal network model that implements a high-capacity general associative memory, spatial memory and episodic memory.
View Article and Find Full Text PDFCationic peptides cause memory loss through endophilin-mediated endocytosis.
Nature
January 2025
Department of Physiology and Biophysics, University of California, Irvine, Irvine, CA, USA.
The zeta inhibitory peptide (ZIP) interferes with memory maintenance and long-term potentiation (LTP) when administered to mice. However, mice lacking its putative target, protein kinase PKMζ, exhibit normal learning and memory as well as LTP, making the mechanism of ZIP unclear. Here we show that ZIP disrupts LTP by removing surface AMPA receptors through its cationic charge alone.
View Article and Find Full Text PDFThe history of biomarkers in psychiatry: lessons learned, lessons forgotten, lessons rediscovered.
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January 2025
Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, Australia.
A quirky truth is that the oldest biomarker findings are largely metabolic. These had minimal impact on contemporary thought and research and were largely ignored. They have been rediscovered and validated almost 100 years later, informing our understanding of neurobiology and medical comorbidity and spurring contemporary treatment discovery efforts.
View Article and Find Full Text PDFIntelligent in-cell electrophysiology: Reconstructing intracellular action potentials using a physics-informed deep learning model trained on nanoelectrode array recordings.
Nat Commun
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Aiiso Yufeng Li Family Department of Chemical and Nano Engineering, University of California San Diego, La Jolla, CA, USA.
Intracellular electrophysiology is essential in neuroscience, cardiology, and pharmacology for studying cells' electrical properties. Traditional methods like patch-clamp are precise but low-throughput and invasive. Nanoelectrode Arrays (NEAs) offer a promising alternative by enabling simultaneous intracellular and extracellular action potential (iAP and eAP) recordings with high throughput.
View Article and Find Full Text PDFPrenatal stress alters mouse offspring dorsal striatal development and placental function in sex-specific ways.
J Psychiatr Res
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Department of Psychiatry, University of Iowa Carver College of Medicine, Iowa City, IA, 52246, USA; Iowa Neuroscience Institute, University of Iowa, Iowa City, IA, 52246, USA; Yale Child Study Center, Yale School of Medicine, New Haven, CT, 06510, USA. Electronic address:
Prenatal stress is a risk factor for neurodevelopmental disorders (NDDs), including autism spectrum disorder (ASD). However, how early stress modification of brain development contributes to this pathophysiology is poorly understood. Ventral forebrain regions such as dorsal striatum are of particular interest: dorsal striatum modulates movement and cognition, is altered in NDDs, and has a primarily GABAergic population.
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