Disorders with Abnormal Regional Blood Flow - Usually Hypoperfusion:
The National Library of Medicine search turned up many imaging studies of Autism, Schizophrenia and ADD/ADHD disorders (Andreason et al.) Hypoperfused frontal cortex dominates the ﬁeld. The dominance and importance of frontal hypoperfusion ﬁ ts our experience in dealing with Depression (Drevets et al 1999), Toxic Encephalopathy (Heuser et al. 1994), Epilepsy and Schizophrenia (Andreason et al. 1997). The importance of the frontal lobes cannot be over emphasized (Ito et al. 1996). These areas are particularly easy to reach from the forehead with the HEG spectrophotometer headband.