Results 31 to 40 of about 391,417 (288)

Recurrent circuits within medial entorhinal cortex superficial layers support grid cell firing

open access: yesNature Communications, 2018
Medial entorhinal cortex (mEC) neurons encode various navigation parameters such as speed, head direction, as well as grid cells. Here, the authors demonstrate that brief disruption of the local activity in mEC specifically affects grid cell tuning.
Ipshita Zutshi   +5 more
doaj   +1 more source

Contextual behavior and neural circuits [PDF]

open access: yesFrontiers in Neural Circuits, 2013
Animals including humans engage in goal-directed behavior flexibly in response to items and their background, which is called contextual behavior in this review. Although the concept of context has long been studied, there are differences among researchers in defining and experimenting with the concept.
Lee, Inah, Lee, Choong-Hee
openaire   +3 more sources

Analog integrated neural-like circuits for nonlinear programming [PDF]

open access: yes, 1989
A systematic approach for the design of analog neural nonlinear programming solvers using switched-capacitor (SC) integrated circuit techniques is presented. The method is based on formulating a dynamic gradient system whose state evolves in time towards
Domínguez Castro, Rafael   +3 more
core   +1 more source

NPAS4 recruits CCK basket cell synapses and enhances cannabinoid-sensitive inhibition in the mouse hippocampus

open access: yeseLife, 2018
Experience-dependent expression of immediate-early gene transcription factors (IEG-TFs) can transiently change the transcriptome of active neurons and initiate persistent changes in cellular function.
Andrea L Hartzell   +6 more
doaj   +1 more source

Internal State Dependent Odor Processing and Perception—The Role of Neuromodulation in the Fly Olfactory System

open access: yesFrontiers in Cellular Neuroscience, 2018
Animals rely heavily on their sense of olfaction to perform various vital interactions with an ever-in-flux environment. The turbulent and combinatorial nature of air-borne odorant cues demands the employment of various coding strategies, which allow the
Sercan Sayin   +7 more
doaj   +1 more source

Exercise enhances motor skill learning by neurotransmitter switching in the adult midbrain

open access: yesNature Communications, 2020
Exercise promotes motor skill learning via unclear mechanisms. Here, the authors show that running wheel training results in neurotransmitter switching in caudal pedunculopontine nucleus neurons of mice.
Hui-quan Li, Nicholas C. Spitzer
doaj   +1 more source

Novel competition test for food rewards reveals stable dominance status in adult male rats

open access: yesScientific Reports, 2021
Social hierarchy is a potent modulator of behavior, that is typically established through overt agonistic interactions between individuals in the group.
Diana F. Costa   +2 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Exploiting Device Mismatch in Neuromorphic VLSI Systems to Implement Axonal Delays [PDF]

open access: yes, 2012
Sheik S, Chicca E, Indiveri G. Exploiting Device Mismatch in Neuromorphic VLSI Systems to Implement Axonal Delays. Presented at the International Joint Conference on Neural Networks (IJCNN), Brisbane, Australia.Axonal delays are used in neural ...
Chicca, Elisabetta   +2 more
core   +4 more sources

Selective dendritic localization of mRNA in Drosophila mushroom body output neurons

open access: yeseLife, 2021
Memory-relevant neuronal plasticity is believed to require local translation of new proteins at synapses. Understanding this process requires the visualization of the relevant mRNAs within these neuronal compartments.
Jessica Mitchell   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy