White matter hyperintensities are associated with visual search behavior independent of generalized slowing in aging.
Lockhart SN, Roach AE, Luck SJ, Geng J, Beckett L, Carmichael O, DeCarli C. White matter hyperintensities are associated with visual search behavior independent of generalized slowing in aging. Neuropsychologia. 2014 Jan; 52:93-101.