Fig 5.

Illustration of a restrained marmoset in the MRI-compatible bed. The body of the animal is loosely attached to a back cover via zip ties secured to a sleeveless jacket worn by the animal. The back cover is screwed to the side bars on the cradle, while the arms, legs and tail of the animal are free to move as she wishes. The head of the marmoset is secured to a two-piece, custom-built helmet made specifically for that individual alone. The chin piece on the bottom supports the chin of the animal, and the head piece on the top prevents head motion. Note that the helmet pieces are lined up with foam on the inside to provide a comfortable support to the entire head. The animal sits in the sphinx position looking out towards the back of the magnet. The bed is secured to the bed sliding mechanism on one end via the hanger.