Abstract #1789
MP3 your A1! How frequent headphone-usage shapes your auditory cortex
Robert Trampel 1 , Andreas Schfer 1 , Christine Lucas Tardif 1 , Miriam Waehnert 1 , Marcel Weiss 1,2 , Juliane Dinse 1 , Pierre-Louis Bazin 1 , and Robert Turner 1
1
Max Planck Institute for Human Cognitive and
Brain Sciences, Leipzig, Germany,
2
Faculty
of Social and Behavioral Sciences, University of
Amsterdam, Amsterdam, Netherlands
Due to the increasing popularity of devices such as
mobile phones and MP3 players, more and more people
frequently use headphones. We considered whether such
intense headphone usage affects the myelination of
primary human auditory cortex A1. Using maps of
longitudinal relaxation time T1 as a marker for cortical
myelin content, we show that in A1 weekly headphone
usage rate is negatively correlated with T1. This
finding suggests that frequent exposure to loud auditory
stimuli increases myelination in primary auditory
cortex.
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