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Related Concept Videos

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...
Restless Leg Syndrome and Night Terrors01:27

Restless Leg Syndrome and Night Terrors

Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
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REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
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...

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Updated: May 23, 2026

The Adventures of Fundi Intervention Based on the Cognitive and Emotional Processing in Attention Deficit Hyperactive Disorder Patients
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Published on: June 12, 2020

The restless brain.

Marcus E Raichle1

  • 1Department of Radiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA. marc@npg.wustl.edu

Brain Connectivity
|March 22, 2012
PubMed
Summary
This summary is machine-generated.

Understanding human brain organization is crucial for explaining behavior. Modern brain imaging reveals the critical role of intrinsic brain activity, showing organized spatial and temporal patterns.

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Area of Science:

  • Neuroscience
  • Human Brain Organization
  • Cognitive Science

Background:

  • Traditional methods like cytoarchitectonics and lesion studies have limitations in fully explaining human behavior.
  • Modern brain imaging techniques have revolutionized the study of the living human brain over the past 40 years.

Purpose of the Study:

  • To review the unique features of intrinsic brain activity.
  • To explore the relationship between intrinsic activity and human brain organization.

Main Methods:

  • Review of modern brain imaging techniques.
  • Analysis of intrinsic brain activity patterns.

Main Results:

  • Intrinsic brain activity is crucial and accounts for most of the brain's energy consumption.
  • This intrinsic activity exhibits organized spatial and temporal dimensions.

Conclusions:

  • Intrinsic brain activity is a key factor in understanding human brain organization.
  • Further research into intrinsic activity is essential for advancing neuroscience and explaining behavior.