MRI Shows Mild Diffuse Cerebral Atrophy, Frequent Head Jerks . Can This Be Cured ?

My 5 1/2 yr old daughter has brain MRI report as:Mild diffuse cerebral atrophy noted, more in parietal lobe with bilateral peritrigonal hyperintensities(terminal zone) and her EEG was normal.She is having frequent head jerks/involuntary head movements that has increased in last 4 days. It was frequent last in 6 months when she got her MRI done and now it has started again.The neurologist in India said that was quite normal as brain might not fully develop till age 6 in children, but as per her pediatrist here in USA the report is not normal.Please suggest if this can be cured and anything serious?I am adding on more information that i just got after diagnosis with pediatric neurologist here in USA, they said she has tics and might overgrow it in her teenage, but stress and other factors could trigger her tics and can worsen.Please throw me more light on Tics and its consequences. She was also asked to be seen by psyhcologist for her behaviourial issues.