Jonathan M. Reed et al., “Learning About Categories That Are Defined by Object-Like Stimuli Despite Impaired Declarative Memory”, Behavioral Neuroscience 113 (1999): 411–19; B. J. Knowlton, J. A. Mangels, & L. R. Squire, “A Neostriatal Habit Learning System in Humans”, Science 273 (1996): 1399–1402; P. J. Bayley, J. C. Frascino, & L. R. Squire, “Robust Habit Learning in the Absence of Awareness and Independent of the Medial Temporal Lobe”, Nature 436 (2005): 550–53.
