Researchers Find Clues to 'Pack-Rat' Urge: "Dec. 17, 2004 -- Attention, pack rats: science may have figured you out. Researchers say they've found an area of the brain that seems to govern the urge to collect.
Well, now I know what's wrong with me. "Damage to a part of the frontal lobes of the [brain's] cortex, particularly on the right side . . . ." You can click the line for further details.