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Related Concept Videos

Somatosensory, Motor, and Association Cortex01:23

Somatosensory, Motor, and Association Cortex

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 the...
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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 human brain, a complex organ, is functionally divided into two cerebral hemispheres—left and right. These hemispheres are interconnected by a structure of paramount importance, the corpus callosum. This substantial bundle of neural fibers is not just a bridge between the hemispheres but a crucial element for the brain's comprehensive functioning. It enables efficient communication between the two hemispheres, allowing each side of the brain to control and receive sensory and motor...
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A Method for Investigating Age-related Differences in the Functional Connectivity of Cognitive Control Networks Associated with Dimensional Change Card Sort Performance
09:01

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Published on: May 7, 2014

Parietal functional connectivity in numerical cognition.

Joonkoo Park1, Denise C Park, Thad A Polk

  • 1Center for Cognitive Neuroscience, Duke University, NC 27708, USA. joonkoo.park@duke.edu

Cerebral Cortex (New York, N.Y. : 1991)
|July 13, 2012
PubMed
Summary
This summary is machine-generated.

Functional connectivity between right and left parietal regions is key for numerical cognition. Enhanced communication between these areas, especially during subtraction, correlates with better math performance.

Keywords:
arithmetic processingfunctional connectivityintraparietal sulcusnumerical cognition

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neuroimaging

Background:

  • The parietal cortex is crucial for numerical cognition.
  • The right parietal cortex handles basic quantity, while the left handles precise number processing and operations.
  • Interactions between these parietal regions during numerical tasks are not well understood.

Purpose of the Study:

  • To investigate the role of functional connectivity between the right and left parietal cortex in numerical cognition.
  • To test the hypothesis that parietal functional connectivity is critical for processing both basic quantities and numerical operations.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to measure neural activity.
  • Participants performed numerical and arithmetic tasks using dot arrays.
  • Task-based functional connectivity was analyzed using a right parietal seed region.

Main Results:

  • Task-based functional connectivity was observed between the right parietal seed and the left sensorimotor cortex across all conditions.
  • Enhanced functional connectivity was found between the right parietal seed and both left and right parietal regions during subtraction.
  • The strength of functional connectivity correlated with behavioral performance in numerical tasks, unlike regional activity.

Conclusions:

  • Parietal functional connectivity plays a significant role in numerical processing.
  • Arithmetic processing relies on communication (crosstalk) within and between parietal regions.
  • This parietal crosstalk contributes to an individual's overall numerical competence.