Related Experiment Video
Updated: May 26, 2026
05:19
Using Neuron Spiking Activity to Trigger Closed-Loop Stimuli in Neurophysiological Experiments
Published on: November 12, 2019
Synchronization in a chaotic neural network with time delay depending on the spatial distance between neurons
Guoning Tang1, Kesheng Xu, Luoluo Jiang
1College of Physics and Technology, Guangxi Normal University, Guilin 541004, China. tangguoning@sohu.com
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|December 21, 2011
Summary
Time delay disrupts synchronization in neuronal networks. Large coupling and delay factors cause abnormal oscillations, leading to desynchronization, but specific parameters enable complete synchronization.
Area of Science:
- Computational Neuroscience
- Complex Systems
Background:
- Neuronal synchronization is crucial for brain function.
- Time delays in neural networks can significantly impact signal processing and network dynamics.
Purpose of the Study:
- To investigate the effect of global coupling with distance-dependent time delay on synchronization in a 2D Hindmarsh-Rose neuronal network.
- To analyze the mechanisms behind synchronization and desynchronization induced by time delays.
Main Methods:
- Simulated a two-dimensional Hindmarsh-Rose neuronal network.
- Introduced a global coupling scheme with spatially proportional time delay.
- Varied coupling strength and time delay enlargement factor to observe network behavior.
Main Results:
- Time delay consistently disturbed neuronal network synchronization.
- Sufficiently large coupling strength and delay enlargement factor induced abnormal, antiphase membrane potential oscillations, leading to desynchronization.
- Complete and intermittently complete synchronization were achieved with specific parameter choices.
Conclusions:
- Time delay is a critical factor influencing synchronization in neuronal networks.
- The interplay between coupling strength and time delay determines network synchronization patterns, including desynchronization and intermittent synchronization.
- Understanding these dynamics is essential for modeling neural communication and dysfunction.
Related Concept Videos
01:25Neural 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...
01:28Neuronal 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...
02:47The Synapse
Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
01:23Propagation 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...
01:09Synaptic Signaling
Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
Most synapses are chemical, meaning an electrical impulse or action potential spurs the release of chemical messengers called neurotransmitters. The neuron sending the signal is called the presynaptic neuron, and the neuron receiving the signal is the postsynaptic neuron.
The presynaptic neuron fires an action potential that...
01:12Synaptic Signaling
Neurons communicate at synapses, or junctions, to excite or inhibit the activity of other neurons or target cells, such as muscles. Synapses may be chemical or electrical.