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Related Concept Videos

Direct Motor Pathways01:11

Direct Motor Pathways

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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.
The corticospinal tract is responsible for the voluntary movement of the limbs and trunk. It originates in the cerebral cortex of the brain and descends through the cerebrum's internal capsule and...
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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.
The vestibulospinal tract originates in the vestibular nuclei of the brainstem. The vestibular system detects changes in...
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Diencephalon: Thalamus and Information Relay01:27

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The thalamus, often called “the gateway to the cerebral cortex,” is vital in processing and directing sensory and motor signals throughout the brain. Almost all inputs destined for the cerebral cortex, except for olfactory signals, are relayed through the thalamus. The thalamus is  a sophisticated relay station, channeling information from various brain regions to the cerebral cortex, as well as a filter, prioritizing certain signals over others based on current physiological...
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Neural Circuits01:25

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.
Neuronal pools are collections of nerve cells with similar functions and interact through chemical and electrical signals. These pools include both interneurons (the central neural circuit nodes that...
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Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

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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.
Motor Areas
The motor areas located in the frontal lobe are central to controlling voluntary movements. This region is further subdivided into the primary motor cortex and the premotor cortex....
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Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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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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In Vivo Wireless Optogenetic Control of Skilled Motor Behavior
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Corticostriatal circuitry.

Suzanne N Haber1

  • 1Department of Pharmacology and Physiology, Department of Neurobiology and Anatomy, University of Rochester School of Medicine, Rochester, New York, USA.

Dialogues in Clinical Neuroscience
|April 13, 2016
PubMed
Summary
This summary is machine-generated.

Corticostriatal connections integrate reward, cognition, and motor functions for goal-directed behaviors. Understanding these complex interactions within the striatum is key to deciphering behavior.

Keywords:
basal gangliacognitiondopaminedorsal striatumfunctional integrationmotor controlprefrontal cortexrewardventral striatum

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Area of Science:

  • Neuroscience
  • Behavioral Neuroscience

Background:

  • Corticostriatal connections are crucial for goal-directed behaviors, encompassing motivation, cognition, and motor control.
  • The striatum, a key component of the basal ganglia, receives topographically organized projections from the cortex.
  • Distinct striatal regions are traditionally linked to specific functions: ventral striatum (reward), caudate nucleus (cognition), and putamen (motor control).

Purpose of the Study:

  • To provide an overview of the connections between the cortex and the striatum.
  • To elucidate the role of corticostriatal connections in integrating reward, cognitive, and motor functions.
  • To highlight the importance of functional domain interfaces within the striatum.

Main Methods:

  • Review of existing literature on corticostriatal circuitry.
  • Analysis of functional and anatomical studies of the striatum.
  • Synthesis of information regarding the integration of different functional territories.

Main Results:

  • Corticostriatal connections are not strictly segregated but exhibit extensive interactions and convergence zones.
  • These interactions occur in specific regions where terminal fields from different cortical areas overlap.
  • The integration of information across reward, cognitive, and motor domains is facilitated by these complex connectivity patterns.

Conclusions:

  • Corticostriatal connections are fundamental for adaptive goal-directed behaviors.
  • The functional segregation of the striatum is an oversimplification; interactions between domains are extensive and critical.
  • Understanding the interface between functional territories within the striatum is essential for comprehending behavior.