Researchers analyzed data from over 3,700 participants to see how childhood maltreatment, such as abuse and neglect, relates to brain structure. The study focused on individuals with Major Depressive Disorder and Posttraumatic Stress Disorder, as well as healthy participants. The findings were based on measurements of brain volume, thickness, and surface area.
In young adults aged 18 to 35, the study found that history of abuse was linked to larger volumes in the thalamus and pallidum, but thinner tissue in the isthmus cingulate and middle frontal regions. For young women specifically, greater abuse and neglect were associated with smaller volumes in the hippocampus and putamen, as well as thinner tissue in the entorhinal cortex.
It is important to note that these findings show a link between past experiences and brain structure, not a direct cause. Because this is a large-scale data analysis, the results highlight patterns in a large group rather than predicting what will happen to any one individual. These findings help researchers better understand the physical impact of early trauma.
