Schizophrenia:Â patients usually have less brain tissue
Major Depression:Â scans show less brain activity in depressed brain
Alzheimer’s: brain tissue significantly shrinks, hippocampus is usually the first region to go
ADHD:Â less brain activity in the frontal cortex (area associated with decision making)Â
OCD:Â high brain activityÂ
Post Traumatic Stress Disorder (PTSD):Â hippocampal volume reduction (area involved in memory) and increased activation of the amygdala (area involved in emotional responses)Â


















