Results 11 to 20 of about 299,758 (277)

Optimal learning with excitatory and inhibitory synapses.

open access: yesPLoS Computational Biology, 2020
Characterizing the relation between weight structure and input/output statistics is fundamental for understanding the computational capabilities of neural circuits.
Alessandro Ingrosso
doaj   +4 more sources

Stability and learning in excitatory synapses by nonlinear inhibitory plasticity

open access: yesPLoS Computational Biology, 2022
Synaptic changes are hypothesized to underlie learning and memory formation in the brain. But Hebbian synaptic plasticity of excitatory synapses on its own is unstable, leading to either unlimited growth of synaptic strengths or silencing of neuronal ...
Christoph Miehl, Julijana Gjorgjieva
doaj   +6 more sources

Learning excitatory-inhibitory neuronal assemblies in recurrent networks [PDF]

open access: yeseLife, 2021
Understanding the connectivity observed in the brain and how it emerges from local plasticity rules is a grand challenge in modern neuroscience. In the primary visual cortex (V1) of mice, synapses between excitatory pyramidal neurons and inhibitory ...
Owen Mackwood   +2 more
doaj   +3 more sources

Optimal percentage of inhibitory synapses in multi-task learning [PDF]

open access: yesScientific Reports, 2015
Performing more tasks in parallel is a typical feature of complex brains. These are characterized by the coexistence of excitatory and inhibitory synapses, whose percentage in mammals is measured to have a typical value of 20-30\%.
Capano, Vittorio   +2 more
core   +5 more sources

Learning and motor inhibitory control in crows and domestic chickens [PDF]

open access: yesRoyal Society Open Science, 2021
Cognitive abilities allow animals to navigate through complex, fluctuating environments. In the present study, we tested the performance of a captive group of eight crows, Corvus corone and 10 domestic chickens, Gallus gallus domesticus, in the cylinder ...
Claudia A. F. Wascher   +2 more
doaj   +5 more sources

The Inhibitory Mechanism in Learning Ambiguous Words in a Second Language [PDF]

open access: yesFrontiers in Psychology, 2017
Ambiguous words are hard to learn, yet little is known about what causes this difficulty. The current study aimed to investigate the relationship between the representations of new and prior meanings of ambiguous words in second language (L2) learning ...
Baoguo Chen   +3 more
doaj   +3 more sources

Learning-induced remodelling of inhibitory synapses in the motor cortex

open access: yesOpen Biology
Robust structural and functional plasticity occurs at excitatory synapses in the motor cortex in response to learning. It is well established that local spinogenesis and the subsequent maintenance of newly formed spines are crucial for motor learning ...
Nishita Bhembre   +5 more
doaj   +4 more sources

Inhibitory learning is modulated by nicotinic acetylcholine receptors. [PDF]

open access: yesNeuropharmacology, 2015
Prior research has established that stimulating nicotinic acetylcholine receptors can facilitate learning and memory. However, most studies have focused on learning to emit a particular behavior, while little is known about the effects of nicotine on learning to withhold a behavioral response.
Meyer HC, Putney RB, Bucci DJ.
europepmc   +4 more sources

Inhibitory learning of phototaxis by honeybees in a passive-avoidance task. [PDF]

open access: yesLearn Mem, 2019
Honeybees are a standard model for the study of appetitive learning and memory. Yet, fewer attempts have been performed to characterize aversive learning and memory in this insect and uncover its molecular underpinnings. Here, we took advantage of the positive phototactic behavior of bees kept away from the hive in a dark environment and established a ...
Marchal P   +7 more
europepmc   +6 more sources

The Role of Expectancy Violation in Extinction Learning: A Two-Day Online Fear Conditioning Study

open access: yesClinical Psychology in Europe, 2023
[Background] Exposure therapy is at the core of the treatment of pathological anxiety. While the inhibitory learning model proposes a framework for the mechanisms underlying exposure therapy, in particular expectancy violation, causal evidence for its ...
Daniel Gromer   +2 more
doaj   +1 more source

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