<s>
Virtual	B-General_Concept
Reality	I-General_Concept
Cue	I-General_Concept
Reactivity	I-General_Concept
(	O
VRCR	O
)	O
is	O
a	O
computer-enhanced	O
methodology	O
used	O
to	O
assess	O
behavioral	O
and	O
physiological	O
reactivity	O
to	O
drug	O
and	O
alcohol	O
sensory	O
cues	O
.	O
</s>
<s>
VRCR	O
utilizes	O
virtual	B-Application
reality	I-Application
(	O
VR	O
)	O
technology	O
to	O
stimulate	O
cue	O
reactivity	O
in	O
the	O
most	O
efficient	O
and	O
realistic	O
environments	O
possible	O
;	O
the	O
intention	O
being	O
that	O
coping	O
skills	O
can	O
be	O
taught	O
in	O
a	O
contextual	O
scenario	O
that	O
reflect	O
a	O
real	O
world	O
situation	O
.	O
</s>
<s>
Virtual	B-Application
reality	I-Application
helps	O
to	O
emulate	O
a	O
near	O
lifelike	O
situation	O
,	O
complete	O
with	O
sights	O
,	O
sounds	O
,	O
smells	O
,	O
and	O
movement	O
.	O
</s>
<s>
Virtual	B-Application
reality	I-Application
(	O
VR	O
)	O
technology	O
allows	O
a	O
user	O
to	O
be	O
immersed	O
in	O
a	O
computer-simulated	B-Application
environment	I-Application
by	O
engaging	O
the	O
senses	O
of	O
a	O
human	O
body	O
.	O
</s>
<s>
A	O
virtual	B-Device
reality	I-Device
headset	I-Device
,	O
incorporating	O
a	O
head-mounted	B-General_Concept
display	I-General_Concept
(	O
HMD	O
)	O
is	O
placed	O
in	O
front	O
of	O
the	O
eyes	O
of	O
a	O
patient	O
like	O
a	O
pair	O
of	O
sunglasses	O
,	O
enabling	O
for	O
complete	O
visual	O
attention	O
.	O
</s>
<s>
Other	O
important	O
scents	O
used	O
in	O
VRCR	O
include	O
vanilla	O
,	O
pizza	O
,	O
coffee	O
,	O
whiskey	O
,	O
cigarette	O
smoke	O
,	O
beer	O
,	O
and	O
pine	B-Operating_System
trees	I-Operating_System
.	O
</s>
<s>
Virtual	B-Application
reality	I-Application
technology	O
allows	O
for	O
a	O
more	O
effective	O
approach	O
to	O
trigger	O
physiological	O
arousal	O
than	O
the	O
standard	O
cue	O
reactivity	O
methods	O
used	O
previously	O
—	O
primarily	O
,	O
presentation	O
of	O
paraphernalia	O
or	O
actor-based	O
simulation	O
.	O
</s>
<s>
Virtual	B-General_Concept
reality	I-General_Concept
cue	I-General_Concept
reactivity	I-General_Concept
,	O
though	O
still	O
in	O
an	O
early	O
stage	O
of	O
development	O
,	O
is	O
aimed	O
at	O
becoming	O
a	O
much	O
more	O
efficient	O
version	O
of	O
an	O
actor-based	O
simulation	O
.	O
</s>
