The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (http://rgd.mcw.edu/contact/index.shtml).
A condition in which an experimental subject is exposed to an experimental apparatus in order to habituate the individual to the apparatus. Habituation is the gradual decrease in behavioral responses to a particular stimulus or environment after repeated exposures have proven to be of no consequence.