fMRI studies love

Scientific American magazine in Feb 2011 has a back page article called "Your Brain in Love" by Mark Fischetti.  This article describes how fMRI studies with people who declare their state of love while doing the scans.  Specific areas of the brain indicate heightened activity with different emotions as shown in the fMRI scans.  While the areas of the brain mentioned are not specfically required in the IB Biology syllabus, fMRI and how these scans can indicate brain function is.  As an area in the brain becomes more active, it consumes more oxygen and this change can be detected by the fMRI scanner.