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Language and Cognition

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Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.

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Related Experiment Video

Updated: Apr 25, 2026

Dynamic Inter-subject Functional Connectivity Reveals Moment-to-Moment Brain Network Configurations Driven by Continuous or Communication Paradigms

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Resting-State and Task-Based Functional Brain Connectivity in Developmental Dyslexia.

Matthias Schurz¹, Heinz Wimmer¹, Fabio Richlan¹

¹Centre for Cognitive Neuroscience.

Cerebral Cortex (New York, N.Y. : 1991)

|August 30, 2014

Summary

This summary is machine-generated.

Dyslexic readers show reduced brain connectivity between temporal and frontal areas, a permanent disruption evident even at rest. This finding highlights altered neural networks in developmental dyslexia.

Keywords:

dyslexia fMRI functional connectivity reading resting state seed-voxel correlation mapping

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Area of Science:

Neuroscience
Cognitive Neuroscience
Developmental Neuroscience

Background:

Reading involves complex cognitive processes across distributed brain regions.
Understanding functional brain connectivity is crucial for dyslexia research.

Purpose of the Study:

To investigate functional brain connectivity differences in developmental dyslexia.
To analyze connectivity in left-hemispheric reading networks using fMRI data.

Main Methods:

Seed-voxel correlation mapping was employed.
Task-based and resting-state functional magnetic resonance imaging (fMRI) data were analyzed.

Main Results:

Reduced connectivity was observed between left posterior temporal areas and the left inferior frontal gyrus in dyslexic readers.
This reduced connectivity was consistent across two reading tasks and during resting state, indicating a persistent neural disruption.
Stronger connectivity was found between reading-related areas and default mode network regions (e.g., precuneus) in dyslexic individuals.

Conclusions:

Developmental dyslexia is associated with disrupted functional connectivity in left-hemispheric reading networks.
The findings suggest a stable neural basis for dyslexia, independent of task demands or performance differences.
Altered connectivity patterns, including increased default mode network engagement, characterize the dyslexic brain.