Accession Number : AD0727623

Title :   Effects of Alcohol and Methylphenidate on Complex Judgments.

Descriptive Note : Technical rept.,

Corporate Author : INSTITUTE FOR RESEARCH STATE COLLEGE PA DIV OF PSYCHOBIOLOGY

Personal Author(s) : Hurst,Paul M. ; Bagley,Sallyann K.

Report Date : MAY 1971

Pagination or Media Count : 22

Abstract : Methylphenidate HCl in two dosages, 12 mg/70 kg and 20 mg/70 kg, ethyl alcohol in a dose of 60 g/70 kg and a placebo were given to fifty college student volunteers. Each S received each treatment once during four sessions, with treatment order being counterbalanced. The Ss, who were all experienced bridge players, were given sets of bidding problems that varied as to storage load, ambiguity level, and answer format (open-ended vs multiple choice). Their performances were scored according to (1) frequency of active bids vs passes and (2) a figure-of-merit preassigned to each possible response, as derived from expert consensus. They also wrote impromptu editorials on assigned topics, from which word-count measures of verbal production were derived, and gave periodic self-ratings on mood adjective check lists. (Author)

Descriptors :   (*PERFORMANCE(HUMAN), DRUGS), (*DRUGS, PSYCHOMETRICS), STUDENTS, UNIVERSITIES, ALCOHOLS, CNS STIMULANTS, BEHAVIOR, STATISTICAL ANALYSIS

Subject Categories : Pharmacology

Distribution Statement : APPROVED FOR PUBLIC RELEASE