amount of experiment time spent in a discrete space in an experimental apparatus amount of experiment time spent in a discrete space in an elevated plus maze 2024-08-01T17:09:50Z CMO:0004011 The total amount of time during an experiment that an organism or experimental subject spends in a distinct and specified area of an elevated plus maze (EPM). An 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. amount of experiment time spent in a discrete space in an EPM clinical_measurement_ontology jrsjrs