In children and fetuses ( exposed to mercury through the mother 's consumption of contaminated seafood ) , extensive brain lesions were observed .
The patients experienced more serious effects like cerebral palsy , mental retardation , and primitive reflexes .
In children and fetuses ( exposed to mercury through the mother 's consumption of contaminated seafood ) , extensive brain lesions were observed and the patients experienced more serious effects like cerebral palsy , mental retardation , and primitive reflexes .