Solitary Confinement: 29 Years in a Box

(CNN) -- Robert King still remembers well the dimensions of his cell: 6 x 9 x 12 feet. There was a steel bed and a sink that doubled as a toilet where he would also wash clothes.

King spent 29 years in solitary confinement in Louisiana. He has been free since 2001, but still has difficulty with geographical orientation.

"I get confused as to where I am, where I should be," he said.

King joined researchers and legal experts at the American Association for the Advancement of Science annual meeting in Chicago this month to talk about the mental and physical health consequences of solitary confinement.

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