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Related Experiment Video

Updated: Nov 9, 2025

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array

Published on: March 27, 2015

Neural activity temporal pattern dictates long-range propagation targets.

Alex T L Leong¹, Xunda Wang¹, Eddie C Wong¹

¹Laboratory of Biomedical Imaging and Signal Processing, The University of Hong Kong, Pokfulam, Hong Kong SAR; Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam, Hong Kong SAR.

|April 9, 2021

Summary

This summary is machine-generated.

This study reveals how specific temporal patterns of neural activity guide signals across the brain, influencing sensory functions. Temporal coding is key to the brain

Keywords:

Neural activity propagation Neural code Optogenetic Temporal code Thalamo-cortical fMRI

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Targeted Labeling of Neurons in a Specific Functional Micro-domain of the Neocortex by Combining Intrinsic Signal and Two-photon Imaging

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Published on: December 12, 2012

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Last Updated: Nov 9, 2025

Neural Activity Propagation in an Unfolded Hippocampal Preparation with a Penetrating Micro-electrode Array

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Published on: March 27, 2015

In Vivo Intracerebral Stereotaxic Injections for Optogenetic Stimulation of Long-Range Inputs in Mouse Brain Slices

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Published on: September 20, 2019

Targeted Labeling of Neurons in a Specific Functional Micro-domain of the Neocortex by Combining Intrinsic Signal and Two-photon Imaging

Targeted Labeling of Neurons in a Specific Functional Micro-domain of the Neocortex by Combining Intrinsic Signal and Two-photon Imaging

Published on: December 12, 2012

Area of Science:

Neuroscience
Computational Neuroscience
Systems Neuroscience

Background:

The brain's complex architecture enables efficient information processing.
Mechanisms of long-range neural signal propagation remain largely unknown.
Understanding signal propagation is crucial for deciphering brain function.

Purpose of the Study:

To investigate how neural signals propagate brain-wide.
To identify the role of temporal patterns in neural signal targeting.
To explore the impact of neural activity propagation on sensory functions.

Main Methods:

Optogenetics used to initiate controlled neural activity pulse trains.
Functional magnetic resonance imaging (fMRI) to track brain-wide propagation.
Electrophysiological analysis to examine neural adaptation and facilitation.

Main Results:

Distinct temporal patterns of neural activity targeted specific long-range pathways.
Neural activity propagation modulated brain-wide sensory functions.
System-level neural adaptation and facilitation explained distinct propagation pathways.

Conclusions:

Temporal coding is fundamental to the brain's functional architecture.
Neural activity patterns dictate long-range information transfer.
Findings provide insights into brain-wide information processing and computing.