Neuroscience research published in September's Journal of Neuroscience suggests early life stresses may modify the GAD1 gene, which controls the production of GABA. Through their research on rats, researchers were able to note that those who experienced a lack of affection showed an obstruction within the DNA which controls the GAD1 gene. As it is believed that GABA deficits might be apparent within schizophrenic patients, researchers propose that the modification of GAD1 might determine a child's predisposition to mental illness.