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Related Experiment Video

Updated: Apr 23, 2026

Author Spotlight: Comparative Imaging of Neural Activity in Awake and Freely Moving States

Author Spotlight: Comparative Imaging of Neural Activity in Awake and Freely Moving States

Published on: January 19, 2024

Synchronization among neuronal pools without common inputs: in vivo study.

Haya Brama¹, Shoshana Guberman^1,2, Moshe Abeles¹

¹Gonda Interdisciplinary Brain Research Center, and the Goodman Faculty of Life Sciences, Bar-Ilan University, 52900, Ramat Gan, Israel.

Brain Structure & Function

|September 19, 2014

Summary

This summary is machine-generated.

Neuronal networks synchronize through network delay loops, linking distant brain areas. This study demonstrates how network topology and activity modes enable synchronized neuronal firing in vivo.

Keywords:

Cell assemblies In vivo Neural networks Population dynamics Synchronization

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Last Updated: Apr 23, 2026

Author Spotlight: Comparative Imaging of Neural Activity in Awake and Freely Moving States

Author Spotlight: Comparative Imaging of Neural Activity in Awake and Freely Moving States

Published on: January 19, 2024

Simultaneous Imaging of Microglial Dynamics and Neuronal Activity in Awake Mice

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Published on: August 23, 2022

Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats

Acute In Vivo Electrophysiological Recordings of Local Field Potentials and Multi-unit Activity from the Hyperdirect Pathway in Anesthetized Rats

Published on: June 22, 2017

Area of Science:

Neuroscience
Computational Neuroscience
Systems Neuroscience

Background:

Periodic synchronization of neuronal activity is crucial for neural processes and information processing in the neocortex.
The underlying mechanisms generating synchronized activity across distributed neuronal pools are not fully understood.

Purpose of the Study:

To investigate the interplay between neocortical network topology and reverberating activity modes in generating periodic neuronal synchronization.
To elucidate the role of network delay loops in synchronizing distant neuronal pools without common drives.

Main Methods:

Employed an iterative in vivo procedure using a single intracellularly recorded neuron to emulate entire network dynamics.
Injected current via the recording electrode to simulate subthreshold synaptic inputs from pre-synaptic neuronal pools.
Measured the effects of connection probability, synaptic strength, and ongoing activity on neuronal synchrony within the intact brain.

Main Results:

Demonstrated that an initial stimulus to a single neuronal pool dynamically evolves into zero-lag and cluster synchronization.
Verified the theoretical interplay between network topology and synchronized activity modes.

Conclusions:

Network delay loops provide a nonlocal mechanism for synchronizing distant neuronal pools.
This mechanism may explain binding activity across distributed brain areas, integrating theoretical models with in vivo experimental findings.