Benzodiazepines are effective as hypnotics, anxiolytics, anticonvulsants, myorelaxants and amnesics. Research on Patient Cochrane also led to greater understanding of priming in amnesics. This helps explain why many amnesics have spared cognitive abilities. Studies with amnesics, do not seem to support the single-process notion. Anterograde amnesics show difficulty in the learning and retention of information encountered after brain damage.