Table 3.

Reasons and situations associated with the use of drugs for neuroenhancement.

	OTC drugs (N = 669)	Prescription and illicit drugs (N = 155)	OTC drugs + prescription and illicit drugs (N = 671)
Curiosity	12.1%	31.0%	12.2%
	(n = 81)	(n = 48)	(n = 82)
Stress, pressure to perform	41.7%	60.6%	41.7%
	(n = 279)	(n = 94)	(n = 280)
Tiredness	79.4%	72.3%	79.4%
	(n = 531)	(n = 112)	(n = 533)
To enhance mood	22.1%	45.8%	22.2%
	(n = 148)	(n = 71)	(n = 149)
For a confident appearance	11.7%	29.0%	11.8%
	(n = 78)	(n = 45)	(n = 79)
Deadline pressure	17.2%	28.4%	17.3%
	(n = 115)	(n = 44)	(n = 116)
Others	11.5%	16.8%	11.5%
	(n = 77)	(n = 26)	(n = 77)

OTC drugs, over-the-counter drugs.