CREAL: Traffic pollution alters brain connectivity in school children

CREAL: Traffic pollution alters brain connectivity in school children

News from CREAL

In a recently study published in NeuroImage researchers found that exposure to urban air pollution directly interferes with the functional maturation of the brain. The aim of the study, led by Jesús Pujol, a researcher at the Hospital del Mar, and coordinated by Jordi Sunyer, codirector and researcher at CREAL, an ISGlobal allied center, was to evaluate the extent of such potential effects of urban pollution on child brain maturation.

The researchers used general indicators of vehicle exhaust measured in the school environment and a comprehensive imaging evaluation. A subgroup of children participating in the BREATHE study underwent MRI. The researchers found that exposure to air pollution is associated with changes in the brain connectivity. "During the school age, major brain systems integrate with each other and the bases of what will be the adult brain are established. We have found that urban pollution may slow this brain maturation process," Sunyer said.

“To test whether measured pollution was associated with cognitive performance, we used children's performance in working memory, motor response speed and attention. Higher pollution predicted slower reaction time in the participants with complete MRI and behavioral testing”, concluded Sunyer.

More information:
CREAL Website

Reference work:
Pujol J, Martinez-Vilavella G, Macia D, Fenoll R,Alvarez-Pedrerol M,Rivas I,Forns J, Blanco-Hinojo L, Capellades J, Querol X, Deus J, Sunyer J. Traffic pollution exposure is associated with altered brain connectivity in school children. NeuroImage 2016;129:175-184.