title: Representations of health concepts: a cognitive perspective.
abstract: OBJECTIVE
  This paper studies the differences between controlled medical vocabularies that are designed as external artifacts and the mental concepts that are inside users' heads and used by users for reasoning, decision making, diagnosis, and treatment.
  
  
  METHODS
  The major theories of concept representations developed in cognitive science were reviewed, analyzed, and compared with the major controlled medical vocabularies developed in medicine.
  
  
  RESULTS
  It was found that there are significant mismatches between controlled medical vocabularies that are designed as external artifacts and the mental concepts that are inside users' heads and used by users for reasoning, decision making, diagnosis, and treatment.
  
  
  CONCLUSIONS
  Controlled medical vocabularies should be designed with systematical considerations of the cognitive structures and processes of the users. Without such considerations, the designed vocabularies will not be appropriate for people because they are hard to use, although they may or may not be appropriate for machine processing.
authors.affiliation: School of Health Information Sciences, University of Texas Health Science Center at Houston, 7000 Fannin, Houston, USA. jiajie.zhang@uth.tmc.edu
authors.forename: Jiajie
authors.initials: J
authors.lastname: Zhang
mesh_terms: D001294:Attitude to Health; D019336:Cognitive Science; D019295:Computational Biology; D003210:Concept Formation; D006801:Humans; D016347:Medical Records Systems, Computerized; D008960:Models, Psychological; D018875:Vocabulary, Controlled