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Related Concept Videos

Organization of the Brain01:30

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...
Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Functional Brain Systems: Limbic System01:15

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The limbic system, often called the "emotional brain," is a complex set of structures located deep within the brain. The intricate network of the limbic system supports a wide range of psychological functions, from emotional regulation to memory formation and sensory processing. This functional brain region encompasses specific parts of the diencephalon and the cerebrum, integrating the higher mental functions of the cerebral cortex with the primitive emotional responses of the deep brain...
Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

The somatosensory cortex in the parietal lobes is crucial for interpreting sensory data such as touch, temperature, and proprioception. The somatosensory cortex, situated in the parietal lobes, plays a vital role in interpreting sensory information like touch, temperature, and proprioception—awareness of body position. This specialized brain region features an organized structure wherein neurons at the top primarily process sensations originating from the lower body. In contrast, those at the...
Neuronal Communication01:28

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...
Neurons as Communicators of the Brain01:22

Neurons as Communicators of the Brain

Neurons, the fundamental units of the brain and nervous system, function as the primary transmitters of information throughout the body. Their ability to communicate through electrical and chemical signals is vital for every bodily function, from regulating the heartbeat to processing complex thoughts. Each neuron has three main components: the cell body (soma), dendrites, and an axon, each specialized to facilitate swift and efficient neural communication.
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Related Experiment Video

Updated: May 9, 2026

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
08:06

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions

Published on: February 15, 2021

From the connectome to brain function.

Cornelia I Bargmann1, Eve Marder

  • 1Howard Hughes Medical Institute, The Rockefeller University, New York, New York, USA. cori@rockefeller.edu

Nature Methods
|July 20, 2013
PubMed
Summary
This summary is machine-generated.

Understanding nervous system function requires more than just connectivity maps. Neuronal dynamics, neuromodulation, and parallel circuits are crucial, offering insights applicable across species from invertebrates to vertebrates.

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Last Updated: May 9, 2026

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions
08:06

Microdissection of Mouse Brain into Functionally and Anatomically Different Regions

Published on: February 15, 2021

Modeling the Functional Network for Spatial Navigation in the Human Brain
05:55

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Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging
17:06

Co-analysis of Brain Structure and Function using fMRI and Diffusion-weighted Imaging

Published on: November 8, 2012

Area of Science:

  • Neuroscience
  • Computational Neuroscience
  • Systems Neuroscience

Background:

  • Nervous system function is traditionally studied via connectivity diagrams.
  • Invertebrate nervous systems offer tractable models with known connectivities.

Purpose of the Study:

  • To identify essential information beyond connectivity for understanding nervous system function.
  • To explore generalizable principles of neural circuit organization across diverse animal groups.

Main Methods:

  • Comparative analysis of invertebrate and vertebrate neural circuits.
  • Review of existing knowledge on neuronal dynamics and neuromodulation.
  • Examination of parallel circuit structures.

Main Results:

  • Connectivity alone is insufficient; neuronal dynamics and neuromodulation are critical.
  • Parallel circuits are a common feature across different nervous systems.
  • The vertebrate retina shares functional organizational principles with invertebrate circuits.

Conclusions:

  • Neuronal dynamics, neuromodulation, and parallel circuits are fundamental to nervous system function.
  • Principles learned from small invertebrate circuits can inform the study of large vertebrate systems.
  • A comparative approach is valuable for understanding the general organization of neural circuits.