title: Semantic Feature Analysis: Further Examination of Outcomes.
abstract: OBJECTIVE
  The purpose of this investigation was to systematically examine outcomes associated with Semantic feature analysis, which is an established treatment for word-retrieval deficits in aphasia. Attributes of the experimental design and stimuli were manipulated to evaluate generalized naming of semantically related and unrelated items. In addition, the study was designed to examine changes in production of semantic information.
  
  
  METHODS
  Semantic feature analysis was applied in the context of multiple-baseline designs with 5 persons with chronic aphasia. Experimental items were controlled for semantic category membership, number of naming attempts, and provision of item names. Acquisition, generalization, and maintenance effects were measured in probes of naming performance. Production of semantic information was also measured in response to experimental items and in discourse tasks.
  
  
  RESULTS
  Treatment was associated with systematic increases in naming of trained items for 4 of the 5 participants. Positive generalization to untrained exemplars of trained categories was found for repeatedly exposed items but not for limited-exposure items. Slight increases in production of semantic content were observed.
  
  
  CONCLUSIONS
  Repeated attempts to name untreated items appeared to play a role in generalization. Provision of the names of untrained items may have enhanced generalized responding for 2 participants.
authors.forename: Catharine
authors.initials: C
authors.lastname: DeLong
authors.forename: Christina
authors.initials: C
authors.lastname: Nessler
authors.forename: Sandra
authors.initials: S
authors.lastname: Wright
authors.forename: Julie
authors.initials: J
authors.lastname: Wambaugh
mesh_terms: D000849:Anomia / Q000175:diagnosis / Q000628:therapy*; D001037:Aphasia / Q000175:diagnosis* / Q000628:therapy*; D005260:Female; D005793:Generalization, Psychological; D006801:Humans; D007808:Language Therapy; D008297:Male; D011939:Mental Recall; D008875:Middle Aged; D009483:Neuropsychological Tests; D017063:Outcome Assessment, Health Care; D012660:Semantics; D013070:Speech Therapy