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Related Concept Videos

Diencephalon: Hypothalamus and Coordination01:23

Diencephalon: Hypothalamus and Coordination

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The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
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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...
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The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses the...
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Lateralization01:28

Lateralization

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Brain lateralization refers to the division of mental processes and functions between the two hemispheres of the brain, a phenomenon that optimizes neural efficiency and underpins complex abilities in humans. This specialization allows each hemisphere to perform tasks where it has a comparative advantage, facilitating more refined cognitive capabilities across different domains.
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Regulation of Food Intake01:30

Regulation of Food Intake

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Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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Functional Brain Systems: Reticular Formation01:13

Functional Brain Systems: Reticular Formation

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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...
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Related Experiment Video

Updated: Jul 15, 2025

Author Spotlight: Hypothalamic Neural Mechanism Insights
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Author Spotlight: Hypothalamic Neural Mechanism Insights

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The cognitive (lateral) hypothalamus.

Melissa J Sharpe1

  • 1Department of Psychology, University of Sydney, Camperdown, NSW 2006, Australia; Department of Psychology, University of California, Los Angeles, Los Angeles, CA, USA.

Trends in Cognitive Sciences
|September 27, 2023
PubMed
Summary
This summary is machine-generated.

The lateral hypothalamus is crucial for learning about food cues and can shift behavior toward or away from important events, challenging traditional views of its function.

Keywords:
addictionfeedinglateral hypothalamusreinforcement learningrewardschizophrenia

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Functional Interrogation of Adult Hypothalamic Neurogenesis with Focal Radiological Inhibition
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Area of Science:

  • Neuroscience
  • Behavioral Science

Background:

  • The hypothalamus traditionally viewed as controlling innate behaviors.
  • Lateral hypothalamus (LH) proposed as a simple on/off switch for feeding.

Purpose of the Study:

  • Investigate the role of the LH beyond innate behavior control.
  • Explore LH involvement in learning and behavioral adaptation.

Main Methods:

  • Review of recent neuroscientific data on LH function.
  • Analysis of studies examining LH's role in cue-based learning.

Main Results:

  • LH is critical for learning about food-related cues.
  • LH actively opposes learning neutral or distal information.
  • LH acts as an arbitrator of learning, directing behavior.

Conclusions:

  • Hypothalamic function is more complex than regulating innate behaviors.
  • LH plays a significant role in adaptive learning.
  • Findings have implications for addiction and schizophrenia research.