. Author manuscript; available in PMC: 2010 Apr 1.

Published in final edited form as: Neuropsychopharmacology. 2009 Jun 24;34(11):2450–2458. doi: 10.1038/npp.2009.67

Table 2.

Mean accuracy, reaction time and standard deviation scores for cannabis (n = 16) and control (n = 16) groups on the Error Awareness task

Category	Cannabis		Controls		p
	M	SD	M	SD
No-go Accuracy (% correct)	53.2	22.4	51.6	19.2
Repeat No-go accuracy	63.8	21.1	61.3	18.1
Colour No-go accuracy	42.9	26.5	42.2	21.4
Error Awareness (% of aware errors)	77.5	24.4	91.9	6.6	^*
Repeat Error Awareness	75.2	28.1	90.0	12.2	^*
Colour Error Awareness	79.5	23.1	93.7	5.6	^*
Go RT (ms)	515.4	98.1	531.4	81.8
Error RT (ms)
Aware Error RT (ms)	437.7	136.4	443.8	123.6
Unaware Error RT (ms)	513.9	169.1	521.2	160.9

Significant difference between cannabis and control groups (p < .05)