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Organization of the Brain

Organization of the Brain

The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
Hindbrain
The hindbrain, located at the base of the brain, plays a vital role in regulating automatic processes that sustain life. It includes the medulla oblongata, which is essential for...

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Related Experiment Video

Updated: Jan 15, 2026

Large-scale Scanning Transmission Electron Microscopy Nanotomy of Healthy and Injured Zebrafish Brain

Large-scale Scanning Transmission Electron Microscopy Nanotomy of Healthy and Injured Zebrafish Brain

Published on: May 25, 2016

A tiny vertebrate reveals brain-scale network functions.

Zichen He¹, Jacob J Morra², Eva A Naumann³

¹Duke School of Medicine, Department of Neurobiology, Durham, NC 27710, USA; Duke University, Department of Psychology and Neuroscience, Durham, NC 27710, USA.

Trends in Neurosciences

|October 14, 2025

Summary

This summary is machine-generated.

Key mammalian brain network features are conserved in larval zebrafish brains. This study used advanced imaging and network analysis to reveal conserved organizational principles across species.

Keywords:

calcium imaging connectome functional connectivity gene expression modularity zebrafish

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Photodiode-Based Optical Imaging for Recording Network Dynamics with Single-Neuron Resolution in Non-Transgenic Invertebrates

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Photodiode-Based Optical Imaging for Recording Network Dynamics with Single-Neuron Resolution in Non-Transgenic Invertebrates

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Published on: July 9, 2020

Area of Science:

Neuroscience
Comparative Biology
Systems Neuroscience

Background:

Mammalian brain networks show complex organizational features mapped by functional connectivity.
Understanding conserved principles across vertebrate brains is crucial for neuroscience.

Purpose of the Study:

To investigate if mammalian brain network organizational features are conserved in the larval zebrafish.
To explore the predictive power of structural connectomes and genetic markers on functional correlations.

Main Methods:

Whole-brain calcium imaging in larval zebrafish.
Single-cell reconstructions of neural architecture.
Network analyses applied to functional and structural data.

Main Results:

Key organizational features of mammalian brain networks are conserved in larval zebrafish.
Structural connectomes and genetic markers predict sensorimotor functional correlations.

Conclusions:

The larval zebrafish brain serves as a valuable model for studying conserved brain network principles.
Findings advance our understanding of neural circuit organization across vertebrates.