A. Barabasz et al., RESTRICTED ENVIRONMENTAL STIMULATION TECHNIQUE IMPROVES HUMAN-PERFORMANCE - RIFLE MARKSMANSHIP, Perceptual and motor skills, 76(3), 1993, pp. 867-873
This study controlled for relaxation and guided imagery confounds riot
ed in much previous research on enhancement of human performance using
the restricted environmental stimulation technique (REST). Dry flotat
ion REST was used where subjects lay (''floated'') on a salt-water-fil
led bladder in a sound-attenuated, light-free chamber. 9 men and 3 wom
en in a rifle marksmanship training course, exposed to dry-flotation R
EST, showed significantly higher rifle marksmanship scores than the un
iversity students who as matched controls were exposed to relaxation (
9 men and 3 women). Further, only the former showed a significant pre-
to posttest improvement in scores, which suggests REST's positive eff
ects on marksmanship go beyond the induction of relaxation by hypnosis
. The results support hypotheses summarized in 1982 by Barabasz regard
ing potentiation by REST of internally generated imagery and subsequen
t improvement observed in a nonREST posttest environment.