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Mapping the After-effects of Theta Burst Stimulation on the Human Auditory Cortex with Functional Imaging

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Published on: September 12, 2012

Middle temporal cortex is involved in processing fractions.

Jiaxin Cui¹, Leinian Li¹, Mengyi Li¹

¹State Key Laboratory of Cognitive Neuroscience and Learning, IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, 100875, China; Advanced Innovation Center for Future Education, Beijing Normal University, Beijing, 100875, China; The Siegler Center for Innovative Learning, Beijing Normal University, Beijing, 1000875, China.

Neuroscience Letters

|March 12, 2020

Summary

This summary is machine-generated.

Processing fractions involves conceptual knowledge, with the left middle temporal gyrus (MTG) playing a key role. Brain activity and functional connectivity differ when processing fractions versus whole numbers.

Keywords:

Fraction processing Middle temporal gyrus Numerical cognition Whole number processing

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Area of Science:

Neuroscience
Cognitive Science
Mathematical Cognition

Background:

Whole number processing is well-studied, but fraction processing remains underexplored.
Fractions are widely used, yet many struggle with learning them, suggesting a need to understand their cognitive basis.

Purpose of the Study:

To investigate the neural mechanisms underlying fraction processing.
To test the hypothesis that fraction processing relies on conceptual knowledge, involving specific brain regions.

Main Methods:

Functional magnetic resonance imaging (fMRI) was used to record brain activity in 68 participants.
Participants performed whole number vs. fraction magnitude comparison tasks of varying difficulty.
Analysis focused on brain regions involved in conceptual knowledge and functional connectivity (FC).

Main Results:

Distinct spatial patterns of brain activity were observed in the left middle temporal gyrus (MTG), parietal, and frontal cortices for fractions versus whole numbers.
Functional connectivity (FC) from the left MTG to the intraparietal sulcus (IPS) was stronger for fractions than whole numbers.
This increased FC positively correlated with accuracy in fraction comparison tasks.

Conclusions:

The left middle temporal gyrus (MTG) is critically involved in processing fractions.
Fraction processing appears to rely more heavily on conceptual knowledge networks compared to whole number processing.