Perceptions of the cognitive effects of cannabis use: A survey of neuropsychologists' beliefs.

: Research evaluating the neuropsychological effects of cannabis has yielded mixed findings, with some studies finding cognitive deficits in cannabis users (primarily in learning and memory) and others finding no significant effects. It is important to understand how clinicians perceive this discrepancy in the empirical literature. However, no studies have assessed neuropsychologists' beliefs regarding the effects of cannabis on cognitive functioning.

Anorexia nervosa and bulimia nervosa: A meta-analysis of executive functioning.

Objective: Research investigating the link between eating disorder (ED) diagnosis and executive dysfunction has had conflicting results, yet no meta-analyses have examined the overall association of ED pathology with executive functioning (EF).

Method: Effect sizes were extracted from 32 studies comparing ED groups (27 of anorexia nervosa, 9 of bulimia nervosa) with controls to determine the grand mean effect on EF. Analyses included effects for individual EF measures, as well as an age-based subgroup analysis.

Adherence to Validity Testing Recommendations in Neuropsychological Assessment: A Survey of INS and NAN Members.

Objective: The National Academy of Neuropsychology (NAN) has published recommendations for best validity testing practices, as has the American Academy of Clinical Neuropsychologists (AACN) in their review of critical issues in the field. However, surveys show not all neuropsychologists follow these recommendations consistently. Examiner characteristics (e.