Disagreements with implications: diverging discourses on the ethics of non-medical use of methylphenidate for performance enhancement

Table 1 Generation of sample for analysis of discourses on the non-medical use of methylphenidate.

Discourse	Databases	Keywords	Articles (n)
Print media	Lexis-Nexis Academic Factiva	"Ritalin" "methylphenidate" "smart drugs" "Ritalin & study aid" "cognitive enhancement" "neuroethics" "stimulant abuse" "non-medical use" "illicit use"	20*^†
Bioethics literature	PubMed (bioethics limit) Expanded Academic		14
Public health literature	PubMed Expanded Academic		7

* We found a single article repeated four times (N = 23 articles) but kept the twenty distinct articles for analysis (except for the headline analysis since all 23 headlines were distinct).
^† Articles originated from the USA (n = 11), UK (n = 6), Australia (n = 2) and Canada (n = 1).

ISSN: 1472-6939