The most salient characteristic of KS is global amnesia.18 Neuropsychological assessments of multi ple functional domains targeting executive functions, declarative and procedural memory, visuospatial abilities and postural stability have revealed that individuals with KS have severe deficits in memory for new material and in gait and balance, despite sparing of general intelligence, short-term memory and visuoperceptual implicit learning.23–26 Patients with KS may also exhibit prefrontal neurobehavioral dysfunction, expressed as deficits on tests of problem solving, working memory, cognitive flexibility, perseverative responding, and self-regulation.27–29
