Memory Impairment in Methamphetamine Dependent Patients

The authors examined the verbal memory and visual memory of 19 patients with methamphetamine dependence and 18 normal controls to assess the memory impairment due to the use of methamphetamine. There was no significant difference in the verbal memory, but a significant difference was detected in the visual memory. The results that the methamphetamine selectively impairs visual memory seem to be because visual memory tasks are more sensitive to the damage of the executive function.