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Related Concept Videos

Brainstem: Control Centers of Medulla01:21

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The medulla oblongata is a crucial part of the brainstem responsible for controlling various autonomic and involuntary functions. It contains several nuclei, including the olivary, cuneate, gracile, and solitary nuclei.
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The neural regulation of respiration is a meticulously coordinated process primarily controlled by the respiratory centers located within the brainstem. These centers, composed of specialized neurons, transmit nerve impulses that control the contraction and relaxation of our respiratory muscles.
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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.
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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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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.
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Related Experiment Video

Updated: Jan 18, 2026

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats
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A brain center that controls consummatory responses.

Jose A Canovas1, Li Wang1, Ahmed A M Mohamed1

  • 1Zuckerman Mind Brain Behavior Institute, Columbia University, New York, NY, USA; Department of Biochemistry and Molecular Biophysics, Howard Hughes Medical Institute, Columbia University, New York, NY, USA.

Cell
|September 11, 2025
PubMed
Summary
This summary is machine-generated.

This study reveals how the brain

Keywords:
GLP1Rbrain circuitscachexiaconsummatory behaviorsinternal statesweet, salt, and foodtasteweight loss

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Area of Science:

  • Neuroscience
  • Behavioral Neuroscience
  • Sensory Processing

Background:

  • The brain's innate attraction to sweet drives appetite and consumption.
  • Understanding the neural circuits of reward and consumption is crucial for metabolic health.

Purpose of the Study:

  • To identify the neural pathways mediating sweet-evoked consumption.
  • To investigate the role of the bed nucleus of the stria-terminalis (BNST) in regulating consummatory behaviors.
  • To explore how internal states influence sensory-driven consumption.

Main Methods:

  • Single-cell functional imaging in animal models.
  • Neural circuit tracing to map amygdala-BNST connections.
  • Optogenetic manipulation of BNST activity.

Main Results:

  • Amygdala neurons projecting to the BNST promote sweet consumption.
  • The BNST acts as a central hub, integrating sensory information with internal states to regulate consumption of various stimuli (sweet, salt, food).
  • BNST ensemble activity encodes stimulus identity and internal state, and its manipulation bidirectionally alters consummatory responses.

Conclusions:

  • The internal state modulates sensory responses via the BNST.
  • The BNST functions as a general brain dial for consumption, offering insights into conditions like obesity and pathological eating.
  • Findings suggest potential therapeutic targets, including GLP1R agonists, for managing weight and related disorders.