Results 11 to 20 of about 374,822 (264)

Deletion of p75NTR rescues the synaptic but not the inflammatory status in the brain of a mouse model for Alzheimer’s disease

open access: yesFrontiers in Molecular Neuroscience, 2023
IntroductionAlzheimer’s disease (AD), is characterized by a gradual cognitive decline associated with the accumulation of Amyloid beta (Aβ)-oligomers, progressive neuronal degeneration and chronic neuroinflammation.
Hendrik Demuth   +9 more
doaj   +1 more source

CoBeL-RL: A neuroscience-oriented simulation framework for complex behavior and learning

open access: yesFrontiers in Neuroinformatics, 2023
Reinforcement learning (RL) has become a popular paradigm for modeling animal behavior, analyzing neuronal representations, and studying their emergence during learning. This development has been fueled by advances in understanding the role of RL in both
Nicolas Diekmann   +7 more
doaj   +1 more source

Deleterious Effects of Ethanol, Δ(9)-Tetrahydrocannabinol (THC), and Their Combination on the Spatial Memory and Cognitive Flexibility in Adolescent and Adult Male Rats in the Barnes Maze Task

open access: yesPharmaceutics, 2020
Research demonstrates that adolescents differ from adults in their response to drugs of abuse. The aim of the present study was to examine the influence of ethanol, Δ9-tetrahydrocannabinol hydrochloride (THC), and a combination of these drugs given ...
Ewa Gibula-Tarlowska   +2 more
doaj   +1 more source

Spatially Consistent Representation Learning [PDF]

open access: yes2021 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2021
Self-supervised learning has been widely used to obtain transferrable representations from unlabeled images. Especially, recent contrastive learning methods have shown impressive performances on downstream image classification tasks. While these contrastive methods mainly focus on generating invariant global representations at the image-level under ...
Byungseok Roh   +3 more
openaire   +2 more sources

Changes in mGlu5 Receptor Signaling Are Associated with Associative Learning and Memory Extinction in Mice

open access: yesLife, 2022
Using an in vivo method for the assessment of polyphosphoinositide (PI) hydrolysis, we examine whether spatial learning and memory extinction cause changes in mGlu5 metabotropic glutamate receptor signaling in the hippocampus and prefrontal cortex.
Ana Elena Teleuca   +10 more
doaj   +1 more source

Desirable Difficulties in Spatial Learning: Testing Enhances Subsequent Learning of Spatial Information [PDF]

open access: yesFrontiers in Psychology, 2018
Previous work has shown that testing can enhance learning and retention of subsequently studied new information. The present study investigated this forward testing effect in spatial memory. In two experiments, participants studied four successively presented 3 × 3 arrays, each composed of the same nine objects.
Bufe, Jonathan, Aslan, Alp
openaire   +5 more sources

Young adult born neurons enhance hippocampal dependent performance via influences on bilateral networks

open access: yeseLife, 2016
Adult neurogenesis supports performance in many hippocampal dependent tasks. Considering the small number of adult-born neurons generated at any given time, it is surprising that this sparse population of cells can substantially influence behavior ...
Jia-Min Zhuo   +10 more
doaj   +1 more source

Learning Spatial Models for Navigation [PDF]

open access: yes, 2015
Typically, autonomous robot navigation relies on a detailed, accurate map. The associated representations, however, do not readily support human-friendly interaction. The approach reported here offers an alternative: navigation with a spatial model and commonsense qualitative spatial reasoning. Both are based on research about how people experience and
Susan L. Epstein   +4 more
openaire   +2 more sources

Spatial Iterative Learning Control for Robotic Path Learning [PDF]

open access: yesIEEE Transactions on Cybernetics, 2022
A spatial iterative learning control (sILC) method is proposed for a robot to learn a desired path in an unknown environment. When interacting with the environment, the robot initially starts with a predefined trajectory so an interaction force is generated.
Lin Yang   +4 more
openaire   +2 more sources

Perception of urban safety: the case of Lublin, Poland

open access: yesMiscellanea Geographica: Regional Studies on Development, 2017
The aim of the study was to evaluate safety and its underlying factors among the inhabitants of Lublin. The findings are based on a questionnaire with 33 detailed questions conducted in May 2012 in all districts of the city.
Pantyley Viktoriya   +2 more
doaj   +1 more source

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