Related Experiment Video
Updated: May 7, 2026

05:19
Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments
Published on: November 12, 2019
Adaptive coupling optimized spiking coherence and synchronization in Newman-Watts neuronal networks
Yubing Gong1, Bo Xu, Ya'nan Wu
1School of Physics and Optoelectronic Engineering, Ludong University, Yantai, Shandong 264025, China.
Chaos (Woodbury, N.Y.)
|October 5, 2013
Summary
Adaptive coupling in neuronal networks enhances spike synchronization and temporal coherence. Increasing coupling speed boosts synchronization, while appropriate speeds optimize coherence, especially with random shortcuts.
Area of Science:
- Computational Neuroscience
- Network Science
Background:
- Neuronal networks exhibit complex dynamics influenced by network topology and coupling mechanisms.
- Understanding how adaptive coupling affects neural synchrony and coherence is crucial for brain function.
Purpose of the Study:
- To numerically investigate the impact of adaptive coupling on temporal coherence and synchronization of spiking activity in Newman-Watts Hodgkin-Huxley neuronal networks.
- To elucidate the interplay between adaptive coupling parameters and network structure (random shortcuts) in modulating neural activity.
Main Methods:
- Numerical simulations of Hodgkin-Huxley neuronal networks.
- Analysis of spiking activity, focusing on synchronization and temporal coherence metrics.
- Systematic variation of adaptive coupling parameters (increment speed, strength) and network topology (presence of random shortcuts).
Main Results:
- Increased adaptive coupling increment speed enhances spiking synchronization more rapidly.
- Optimal temporal coherence is achieved at specific adaptive coupling increment speeds.
- Adaptive coupling strength positively influences spike synchronization and temporal coherence, particularly when random shortcuts are present.
- Adaptive coupling significantly impacts spiking activity in networks with random shortcuts.
Conclusions:
- Adaptive coupling plays a critical role in modulating spiking activity in neuronal networks.
- The findings highlight the potential of adaptive coupling to enhance and optimize neural information processing and transmission.
- This study provides insights into the mechanisms by which network structure and adaptive dynamics interact to shape neural communication.
Related Concept Videos
Propagation of Action Potentials
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Neuronal Communication
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
Neural Circuits
Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
Neurons: The Axon
Axons are long, cytoplasmic processes of nerve cells capable of propagating electrical impulses known as action potentials. The cytoplasm or axoplasm of an axon contains neurofibrils, neurotubules, small vesicles, lysosomes, mitochondria, and various enzymes, all encased within the axolemma, the plasma membrane of the axon.
The axon attaches to the cell body at a cone-shaped elevation called the axon hillock. The initial part of the axon, closest to the hillock, is known as the initial segment.
The axon attaches to the cell body at a cone-shaped elevation called the axon hillock. The initial part of the axon, closest to the hillock, is known as the initial segment.
Electrical Synapses
Electrical synapses found in all nervous systems play important and unique roles. In these synapses, the presynaptic and postsynaptic membranes are very close together (3.5 nm) and are actually physically connected by channel proteins forming gap junctions.
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
Gap junctions allow the current to pass directly from one cell to the next. In contrast, in the chemical synapse, the neurotransmitters carry the information through the synaptic cleft from one neuron to the next. They consist of two...
The Role of Ion Channels in Neuronal Computation
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.

