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Related Concept Videos

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Neural Circuits

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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
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Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
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The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
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The direct motor pathways, also known as the pyramidal tracts, are a group of neural pathways that originate in the brain and descend through the spinal cord. They control the voluntary movement of the body. There are two major direct motor pathways: the corticospinal and the corticobulbar tracts.
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Indirect Motor Pathways01:22

Indirect Motor Pathways

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The indirect motor or extrapyramidal pathways originate in the brainstem, the lower portion of the brain that connects it to the spinal cord. They consist of several distinct tracts, each with specialized functions. The four main tracts of the indirect motor pathways are the vestibulospinal tract, the reticulospinal tract, the tectospinal tract, and the rubrospinal tract.
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Somatosensory, Motor, and Association Cortex01:24

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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...
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Related Experiment Video

Updated: Aug 25, 2025

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms
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Task-specific subnetworks extend from prefrontal cortex to striatum.

Peter Stiers1, Alexandros Goulas2

  • 1Department of Neuropsychology and Psychopharmacology, Maastricht University, Maastricht, the Netherlands.

Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
|October 14, 2022
PubMed
Summary
This summary is machine-generated.

The human striatum, part of the basal ganglia, is crucial for cognitive decision-making. This study reveals the striatum integrates with the prefrontal cortex in cognitive brain networks, forming task-specific subnetworks.

Keywords:
Basal gangliaCerebral cortex organizationInferior frontal junctionNucleus accumbensResting state functional connectivityTask-related fMRI

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Functional magnetic resonance imaging (fMRI) studies typically focus on the cerebral cortex for cognitive task representation.
  • Neurophysiological evidence suggests neurons in the striatum also encode task-relevant features, implying basal ganglia involvement in cognition.

Purpose of the Study:

  • To investigate the role of the human striatum in cognitive brain networks using fMRI.
  • To determine if the striatum exhibits unique activity patterns for different cognitive tasks.
  • To explore functional connectivity between the striatum and the lateral prefrontal cortex during cognitive tasks.

Main Methods:

  • fMRI data from 12 participants performing three distinct cognitive tasks (Eriksen flanker, 2-back, response switching).
  • Region of interest-based multivariate pattern classification to analyze striatal and prefrontal cortex activity patterns.
  • Voxel-to-voxel functional connectivity analysis to assess coupling between striatal and prefrontal cortex regions.

Main Results:

  • Each cognitive task induced unique activity patterns in the striatum (including putamen, caudate nucleus, ventral striatum) and lateral prefrontal cortex.
  • Striatal contributions to cognition were independent of habituation or learning effects.
  • Task-preferring voxels in the lateral prefrontal cortex and striatum showed stronger functional coupling, suggesting interconnected subnetworks.

Conclusions:

  • The human striatum is an integral component of cognitive brain networks, working in concert with the lateral prefrontal cortex.
  • Striatal neurons form task-specific subnetworks with prefrontal cortex regions, exhibiting functional couplings that persist beyond task execution.