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| http://dx.doi.org/10.1016/j.neuint.2018.05.012 | DOI Listing |
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A complex acoustical environment during development enhances auditory perception and coding efficiency in the zebra finch.
J Neurosci
December 2024
Department of Psychology, University of Virginia, Charlottesville VA 22904, USA
Sensory experience during development has lasting effects on perception and neural processing. Exposing juvenile animals to artificial stimuli influences the tuning and functional organization of the auditory cortex, but less is known about how the rich acoustical environments experienced by vocal communicators affect the processing of complex vocalizations. Here, we show that in zebra finches (), a colonial-breeding songbird species, exposure to a naturalistic social-acoustical environment during development has a profound impact on auditory perceptual behavior and on cortical-level auditory responses to conspecific song.
View Article and Find Full Text PDFExcitatory neuron-prone prion propagation and excitatory neuronal loss in prion-infected mice.
Front Mol Neurosci
December 2024
Laboratory of Veterinary Hygiene, Faculty of Veterinary Medicine, Graduate School of Infectious Diseases, Hokkaido University, Sapporo, Japan.
The accumulation of a disease-specific isoform of prion protein (PrP) and histopathological lesions, such as neuronal loss, are unevenly distributed in the brains of humans and animals affected with prion diseases. This distribution varies depending on the diseases and/or the combinations of prion strain and experimental animal. The brain region-dependent distribution of PrP and neuropathological lesions suggests a neuronal cell-type-dependent prion propagation and vulnerability to prion infection.
View Article and Find Full Text PDFTargeting Tiam1 enhances hippocampal-dependent learning and memory in the adult brain and promotes NMDA receptor-mediated synaptic plasticity and function.
J Neurosci
December 2024
Department of Neuroscience, Baylor College of Medicine, Houston, TX, USA
Excitatory synapses and the actin-rich dendritic spines on which they reside are indispensable for information processing and storage in the brain. In the adult hippocampus, excitatory synapses must balance plasticity and stability to support learning and memory. However, the mechanisms governing this balance remain poorly understood.
View Article and Find Full Text PDFDecade of TRAP Progress: Insights and Future Prospects for Advancing Functional Network Research in Epilepsy.
Prog Neurobiol
December 2024
Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, School of Medicine, Zhejiang University, Hangzhou, China; key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China. Electronic address:
Targeted Recombination in Active Populations (TRAP) represents an effective and extensively applied technique that has earned significant utilization in neuroscience over the past decade, primarily for identifying and modulating functionally activated neuronal ensembles associated with diverse behaviors. As epilepsy is a neurological disorder characterized by pathological hyper-excitatory networks, TRAP has already been widely applied in epilepsy research. However, the deployment of TRAP in this field remains underexplored, and there is significant potential for further application and development in epilepsy-related investigations.
View Article and Find Full Text PDFProgesterone and allopregnanolone facilitate excitatory synaptic transmission in the infralimbic cortex via activation of membrane progesterone receptors.
Neuroscience
December 2024
Department of Psychology, Concordia University, Montreal, Canada. Electronic address:
Estrogens and progesterone can have rapid effects on neuronal function and can modify the use of spatial navigation strategies dependent upon the prefrontal cortex, striatum, and hippocampus. Here, we assessed the effects of 17β-estradiol (E2), progesterone, and its metabolite allopregnanolone, on evoked excitatory postsynaptic potentials in the infralimbic region of the female rat prefrontal cortex. Field excitatory postsynaptic potentials (fEPSPs) evoked by stimulation of layer I were first characterized by recording responses at multiple depths between the cortical surface and the underlying white matter.
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