Positive Emotions from Brain Injury: The Emergence of Mirth and Happiness

Figure 1

Corresponding axial computerized tomography (CT), magnetic resonance imaging (MRI; fluid-attenuated inversion recovery), and fluorodeoxyglucose positron emission tomography (FDG-PET) scans of the brain. (a) CT shows a large right frontal calvarial vault defect with underlying extensive volume loss/encephalomalacia in the right frontal and anterior right temporal lobes with surrounding gliosis. There is also volume loss and gliosis at the anteroinferior aspect of the left frontal lobe. (b) MRI corroborates the CT findings in a greater detail. (c) FDG-PET shows hypometabolism of right frontal, anterior right temporal, and left anterior inferior frontal lobes corresponding to the CT and MRI findings.