Related Experiment Video
Updated: Oct 10, 2025
05:01
Inducing Long-Term Plasticity of Intrinsic Neuronal Excitability in Neurons of the Dorsal Lateral Geniculate Nucleus
Published on: September 20, 2024
535
Nonlinear transient amplification in recurrent neural networks with short-term plasticity
Yue Kris Wu1,2,3,4, Friedemann Zenke1,2
1Friedrich Miescher Institute for Biomedical Research, Basel, Switzerland.
Elife
|December 13, 2021
Summary
Neural circuits achieve rapid information processing through nonlinear transient amplification (NTA). This mechanism uses excitation and inhibition with short-term plasticity to selectively amplify inputs without sustained activity.
Area of Science:
- Neuroscience
- Computational Neuroscience
- Systems Neuroscience
Background:
- Neural circuits require transient amplification for rapid information processing.
- Hebbian assemblies offer amplification but can lead to slow dynamics and runaway activity.
- Feedback inhibition can mitigate these issues but often linearizes responses.
Purpose of the Study:
- Investigate nonlinear transient amplification (NTA) as an alternative mechanism for rapid information processing.
- Explore how NTA reconciles strong recurrent excitation with fast amplification.
- Determine if NTA avoids issues associated with Hebbian assemblies and feedback inhibition.
Main Methods:
- Characterized NTA in supralinear network models.
- Analyzed the temporal phases of NTA: initial amplification and subsequent quenching.
- Investigated the role of excitatory-inhibitory co-tuning and short-term plasticity.
Main Results:
- NTA enables selective amplification of inputs exceeding a critical threshold.
- Short-term plasticity effectively quenches runaway dynamics into an inhibition-stabilized state.
- NTA produces stimulus-selective onset transients suitable for speedy information processing.
- Excitatory-inhibitory co-tuning expands the parameter space for NTA without persistent activity.
Conclusions:
- NTA provides a viable mechanism for transient amplification in neural networks.
- The interplay of excitatory-inhibitory co-tuning and short-term plasticity is crucial for NTA.
- NTA offers a parsimonious explanation for rapid, selective information processing in the brain.
Keywords:
computational neurosciencenetwork dynamicsneurosciencenonerecurrent neural networksshort-term plasticityspiking neural networkstransient amplificationMore Related Videos
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