abirritation
hyporesponse
hypostimulation
obtundation
hyporeactive
trance
understimulate
absolute threshold
hyporesponsive
negative reinforcer
negative reinforcing stimulus
clear
nonstimulation
unresponsive
loss of consciousness
reactive
desensitizing
desensitising
responsive
abience
subliminal
understimulated
stupefy
hypophysiological
adiaphoria
downregulation
understimulation
irresponsive
impetus
reflex
plateau effect
tape
dry
cuelessness
differential threshold
differential limen
difference threshold
insensate
insensitive
juiceless
difference limen
stenosis
underuse
too much bed makes a dull head
disinhibition
sensory gating
unreactive
hyperreactive
numbness
reaction time