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Related Experiment Video

Updated: Mar 17, 2026

Infant Auditory Processing and Event-related Brain Oscillations

Infant Auditory Processing and Event-related Brain Oscillations

Published on: July 1, 2015

Early Blindness Results in Developmental Plasticity for Auditory Motion Processing within Auditory and Occipital

Fang Jiang¹, G Christopher Stecker², Geoffrey M Boynton³

¹Department of Psychology, University of Nevada Reno, NV, USA.

Frontiers in Human Neuroscience

|July 27, 2016

Summary

Early blindness enhances auditory motion processing in the hMT+ area and reduces function in the right planum temporale (rPT). These cross-modal plasticity effects are driven by early visual absence, not later vision loss or recovery.

Keywords:

auditory motion early blindness fMRI hMT+late blindness visual deprivation

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Area of Science:

Neuroscience
Cognitive Neuroscience
Sensory Processing

Background:

Early blindness is associated with enhanced auditory motion processing.
Specific brain regions, including hMT+ and the right planum temporale (rPT), show altered activity in response to auditory motion in early blind individuals.

Purpose of the Study:

To investigate the impact of developmental versus adult visual deprivation on cortical plasticity.
To differentiate the effects of early blindness from later vision loss or recovery on brain function in hMT+ and rPT.

Main Methods:

Comparison of Blood-Oxygen-Level-Dependent (BOLD) responses to auditory motion.
fMRI scans were conducted on sighted controls, early blind, late blind, and sight-recovery individuals.

Main Results:

Enhanced auditory motion responses in hMT+ and reduced functionality in rPT were observed in early blind individuals.
These effects are linked to the absence of visual experience early in life.
Neither late-onset blindness nor vision recovery influenced plasticity in these areas.

Conclusions:

Cortical plasticity in response to early blindness is primarily driven by the lack of early visual input.
Reduced rPT functionality suggests cross-areal competition for functional roles as a mechanism of plasticity, in addition to cross-modal competition within regions.