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Related Concept Videos

Functional Brain Systems: Limbic System01:15

Functional Brain Systems: Limbic System

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 reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
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Cerebrum: Anatomical Overview II

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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.
Hindbrain
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Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures
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Published on: August 1, 2011

Microstructural organizational patterns in the human corticostriatal system.

Timothy D Verstynen1, David Badre, Kevin Jarbo

  • 1Learning Research and Development Center, Univ. of Pittsburgh, Pittsburgh, PA 15260, USA. timothyv@gmail.com

Journal of Neurophysiology
|March 2, 2012
PubMed
Summary
This summary is machine-generated.

Researchers mapped human brain connections to the striatum using advanced imaging. They discovered specific organization patterns, revealing how information is segregated within the basal ganglia.

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Area of Science:

  • Neuroscience
  • Human Brain Imaging
  • Connectomics

Background:

  • Axons projecting to the striatum are known to segregate by cortical systems.
  • The within-region organization of these fibers in humans remains undescribed.

Purpose of the Study:

  • To map white matter pathways from neocortical areas to the striatum in humans.
  • To describe the within-region organization of these projecting fibers.

Main Methods:

  • In vivo fiber tractography in neurologically healthy adults.
  • Mapping white matter bundles originating from different neocortical areas.
  • Analyzing fiber projections into the striatum, navigating complex crossings.

Main Results:

  • Fibers were generally segregated according to cortical origin.
  • A patched input pattern was observed in a subset of pathways.
  • A rostral-caudal topography was found in prefrontal and motor cortex projections to the striatum.
  • An asymmetry in divergent projections from the prefrontal cortex was detected.

Conclusions:

  • The longitudinal organization of input fields is present at the microstructural level in the human basal ganglia.
  • Information segregation occurs as cortical fibers enter the striatum.
  • Findings align with computational models predicting information flow asymmetries.