. Author manuscript; available in PMC: 2009 Oct 8.

Published in final edited form as: Am J Addict. 2008 Jul–Aug;17(4):312–318. doi: 10.1080/10550490802138988

TABLE 1.

GHB cognitive and sensory-motor items included in the structured interview administered by telephone (asked in random order)

Item	Content type
Involuntary muscle jerking^*	Sensory-motor
Silliness^*	Cognitive
Happiness	Cognitive
Loss of memory or amnesia^*	Cognitive
Voice or sound hallucinations^*	Cognitive
Relaxation^*	Cognitive/sensory-motor
Increased sexuality^*	Cognitive/sensory-motor
Sight or image hallucinations^*	Cognitive
Tendency to talk^*	Cognitive
Loss of inhibitions^*	Cognitive
Heightened sense of touch^*	Sensory-motor
Increased sensitivity to sound^*	Cognitive/sensory-motor
Stimulated or energetic	Cognitive
Euphoric	Cognitive
Depressed or lethargic	Cognitive

The trunk question was worded as: “During the time of GHB’s effects, using a scale of 0 for “never” to 4 for “always,” how likely are you to feel these sensations?”

Items that were included in the 11-item focus group version of the instrument.