Abstract: The purpose of this study was to investigate experimentally a theoretical aspect of Bandler and Grinder's Neurolinguistic Programming (NLP) model. The specific purpose of this study was an attempt to determine the effect of presenting relaxation directions to subjects by utilizing four different representational systems: overlapping representational system predicates, visual representational system predicates, kinesthetic representational system predicates, and auditory representational system predicates. One NLP concept is that people relate to the world around them through one of five sensory modalities: visual, auditory, kinesthetic, olfactory, or gustatory. Bandler and Grinder proposed that people specialize so that one of the systems becomes their primary representational system (PRS), or most favored system. Bandler and Grinder claim that a PRS can be determined by listening carefully to the predicates used in the person's natural language, observing eye-movement patterns, and through self- report. Bandler and Grinder speculate that communication is enhanced when people communicate utilizing matched predicates. "Overlapping" predicates (presenting predicates from two or more representational systems in temporal and structural proximity) purportedly expands an individual's communication channels. This expansion purportedly makes available more options for problem solving and for communicating in a more congruent manner. The subjects were individuals enrolled in professional military education classes at the United States Air Forces in Europe (USAFE) Academy located at Kapaun Air Station, West Germany. Prior to the experiment 64 subjects from a pool of 71 subjects were randomly assigned to one of four treatment groups. When a subject was eliminated from the study another subject was selected from the remaining pool of subjects and assigned to the treatment condition. In all, 51 males and 13 females completed the experiment. Four female experimenters were randomly assigned subjects such that each experimenter tested an equal number of subjects under each of four conditions. The order of testing was randomly assigned, thus experimenters did not know under which condition they were testing. An associate experimenter was used to greet the subjects at their appointed time and to administer a pre- experiment questionnaire. [NOTE: the author's abstract exceeded stipulated maximum length. It was discontinued at this point with permission of the author.]