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Error-driven upregulation of memory representations.
Commun Psychol
January 2025
Institute of Psychology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany.
Learning an association does not always succeed on the first attempt. Previous studies associated increased error signals in posterior medial frontal cortex with improved memory formation. However, the neurophysiological mechanisms that facilitate post-error learning remain poorly understood.
View Article and Find Full Text PDFImpaired spatial coding of the hippocampus in a dentate gyrus hypoplasia mouse model.
Proc Natl Acad Sci U S A
February 2025
Zanvyl Krieger Mind/Brain Institute, Johns Hopkins University, Baltimore, MD 21218.
The hippocampal dentate gyrus (DG) is thought to orthogonalize inputs from the entorhinal cortex (pattern separation) and relay this information to the CA3 region. In turn, attractor dynamics in CA3 perform a pattern completion or error correction operation before sending its output to CA1. In a mouse model of congenital hypoplasia of the DG, a deficiency in the (Wls) gene, specifically in cells expressing , which targets neuronal progenitors, led to an almost total absence of dentate granule cells and modestly impaired performance in spatial tasks.
View Article and Find Full Text PDFHippocampal coding of identity, sex, hierarchy, and affiliation in a social group of wild fruit bats.
Science
January 2025
Department of Brain Sciences, Weizmann Institute of Science, Rehovot, Israel.
Social animals live in groups and interact volitionally in complex ways. However, little is known about neural responses under such natural conditions. Here, we investigated hippocampal CA1 neurons in a mixed-sex group of five to 10 freely behaving wild Egyptian fruit bats that lived continuously in a laboratory-based cave and formed a stable social network.
View Article and Find Full Text PDFContribution of rat insular cortex to stimulus-guided action.
J Neurosci
January 2025
Univ. Bordeaux, CNRS, INCIA, UMR 5287, F-33000 Bordeaux, France
Anticipating rewards is fundamental for decision-making. Animals often use cues to assess reward availability and to make predictions about future outcomes. The gustatory region of the insular cortex (IC), the so-called gustatory cortex, has a well-established role in the representation of predictive cues, such that IC neurons encode both a general form of outcome expectation as well as anticipatory outcome-specific knowledge.
View Article and Find Full Text PDFDesign Characteristics of Augmentative and Alternative Communication Interfaces for Children With Cortical Visual Impairment: Results From Two Focus Groups With Vision Professionals.
Am J Speech Lang Pathol
January 2025
Department of Speech Pathology, Nationwide Children's Hospital, Columbus, OH.
Purpose: The purpose of the current study was to gain insight on augmentative and alternative communication (AAC) interface designs for children with cortical visual impairment (CVI). Children with CVI frequently require AAC and specific interface supports, and customization may be necessary to support access and use of speech-generating devices.
Method: A focus group methodology was selected to gain feedback from vision professionals on helpful AAC features for children with CVI.
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