Optimal learning with excitatory and inhibitory synapses.
Characterizing the relation between weight structure and input/output statistics is fundamental for understanding the computational capabilities of neural circuits.
Alessandro Ingrosso
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Stability and learning in excitatory synapses by nonlinear inhibitory plasticity
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
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Learning excitatory-inhibitory neuronal assemblies in recurrent networks [PDF]
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
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Optimal percentage of inhibitory synapses in multi-task learning [PDF]
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
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Learning and motor inhibitory control in crows and domestic chickens [PDF]
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
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The Inhibitory Mechanism in Learning Ambiguous Words in a Second Language [PDF]
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
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Learning-induced remodelling of inhibitory synapses in the motor cortex
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
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Inhibitory learning is modulated by nicotinic acetylcholine receptors. [PDF]
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.
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Inhibitory learning of phototaxis by honeybees in a passive-avoidance task. [PDF]
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
[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
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