measurement of voluntary locomotion in an experimental apparatus measurement of voluntary locomotion in an elevated plus maze 2024-08-01T18:21:06Z Any measurement of the movement of an organism from one place to another in an elevated plus maze apparatus when that movement originated and/or was undertaken, controlled, or accomplished as a result of free will or choice. An elevated plus maze (EPM) is an apparatus with an open center area, two open arms without enclosing walls and two enclosed arms with walls to prevent the experimental subject from escaping or from seeing anything outside the maze. The apparatus is raised a specified distance above the floor and is used to measure movement, behavior, learning, memory, etc., generally in rodents. CMO:0004021 clinical_measurement_ontology jrsjrs measurement of voluntary locomotion in an EPM