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Gavin W. Hougham, Greg A. Sachs, Deborah Danner, Jim Mintz, Marian Patterson, Laura W. Roberts, Laura A. Siminoff, Jeremy Sugarman, Peter J. Whitehouse, Donna Wirshing, Empirical Research on Informed Consent with the Cognitively Impaired, IRB: Ethics & Human Research, Vol. 25, No. 5, Supplement (Sep. - Oct., 2003), pp. S26-S32
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Hougham et al. (2003) studied this question.
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