Research surrounding memory in neuroscience demonstrated a difference between declarative and procedural memory. Studies demonstrated the ability among amnesiacs to learn visuomotor skills, although they could not recall recent happenings that included the learning of the skills. Amnesiacs also demonstrate repetition priming—increased ability to recognize a stimulus when it was encountered previously. Cohen and Squire conclude that amnesiacs’ ability to learn a task is dependent upon the information involved. They view amnesiacs as struggling with declarative memory—which requires recall of specific material—while retaining procedural memory—which is used to perform procedures.