 In series of experiments, Gazzaniga (1995) presented commissurotomy patients (people with severed corpus callosum) with different visual stimuli to each hemisphere of the brain. With cross-hemispheric communication severely impaired due to the commissurotomy, the left hemisphere, controlling speech, had information about one part of the visual stimulus, while the right hemisphere, controlling some aspects of movement (especially the left hand) had information about a different part. Gazzaniga reported finding that when these “split brain” patients were asked to explain why they did something, when that action was clearly caused by input to the right, non-verbal hemisphere, the left hemisphere would sometimes fluently confabulate an explanation. For example, Gazzaniga reports presenting an instruction like “laugh” to the right hemisphere, making the patient laugh. When asked why he laughed, the patient would say something like “You guys come up and test us every month. What a way to make a living!” (1393). When a chicken claw was shown to the left hemisphere and snow scene to the right, and the patient was asked to select an appropriate picture from an array, the right hand would point to a chicken and the left hand to a snow shovel, and when asked why they selected those two things, the patient would say something like “Oh, that’s simple. The chicken claw goes with the chicken and you need a shovel to clean out the chicken shed” (ibid.). Similar confabulation about motives is sometimes (but not always) seen in people whose behavior is, unbeknownst to them, driven by post-hypnotic suggestion (Richet 1884; Moll 1889 [1911]), and in disorders such as hemineglect (anosognosia), blindness denial (Anton’s syndrome), and Korsakoff’s syndrome (Hirstein 2005).