total horizontal distance covered resulting from voluntary locomotion in proximity to the target in an experimental apparatus ratio of horizontal distance covered in proximity of the target to total horizontal distance covered in an experimental apparatus 2018-11-13T15:18:32Z CMO:0002813 Not4Curation This is the ratio of the total horizontal distance of an experimental subject made in proximity to the target to the total horizontal distance made within an apparatus. These movements are the result of voluntary locomotion of the experimental subject. clinical_measurement_ontology horizontal distance covered resulting from voluntary locomotion in proximity to the target in an experimental apparatus to total horizontal distance covered ratio sjwang calculated horizontal distance resulting from voluntary locomotion in an experimental apparatus