Marijuana neuropsychological assessment,

Culver CM, King FW. (1974). Neuropsychological assessment of undergraduate marijuana and LSD users. Arch Gen Psychiatry. 31 707-711. 

The methods described below in human marijuana users and respective nonmarijuana users outline (1) neuropsychological assessment of marijuana users, (2) transcranial doppler sonography, and (3) EEG recordings and analysis. 

Neuropsychological procedures are used in an effort to provide an unbiased estimate of the individual s cognitive capacity. In neurology and psychiatry, these tests have been used to help clinicians to better diagnose patients and to provide them with better treatments. We chose to use a fixed battery in our effort to assess neurobehavioral changes that might be associated with the chronic use of marijuana. That battery included tests of language skills, visual and spatial memory, attention, concentration, executive function, visuo-constructive skills, manual dexterity, simple reaction time, and complex reaction time in subjects in our studies. The various tests used are listed below. 

---