Fig. 4.

Percentage of change in post-abstinence perfusion compared to the value during consumption for selected Brodmann areas of the left cerebral hemisphere of one patient. There is a marked increase of the minimum values (in red), suggestive of a recovery in post-abstinence function, in Brodmann area 9 which is related to higher executive functions, in areas 21 and 22 associated with auditory processing, and in the average perfusion values (in yellow) in area 25, fundamental in emotional integration and regulation.