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EBP Compendium: Summary of Systematic Review

A Meta-Analytic Review of Category Naming in Alzheimer's Disease

Laws, K. R., Adlington, R. L., et al. (2007).
Neuropsychologia, 45(12), 2674–2682.

Indicators of Review Quality:

The review addresses a clearly focused question Yes
Criteria for inclusion of studies are provided Yes
Search strategy is described in sufficient detail for replication Yes
Included studies are assessed for study quality No
Quality assessments are reproducible N/A

Description: This is a meta-analysis of research studies addressing the ability of patients with Alzheimer's disease to accurately name living things and non-living things.

Question(s) Addressed:

  1. Is anomia in Alzheimer's disease category specific in nature?
  2. Does Alzheimer's disease differentially affect the ability to name living things and non-living things?

Population: Patients with Alzheimer's disease

Intervention/Assessment: Naming ability of non-living things and naming ability of living things.

Number of Studies Included: 21

Years Included: Any (published in 2007)



  • Assessment/Diagnosis
    • Assessment Areas
      • Cognitive-Communication
        • Naming
          • The results of this meta-analysis indicate that the impairment in lexical-semantics in patients with Alzheimer's disease significantly affects the naming of items in the living things (LT) and non-living things (NLT) domains.
          • There is no significant difference between naming of LT and naming of NLT; however, there appeared to be an effect of stimulus color. Color stimuli increases the level of impairment in naming living things. 

Keywords: Alzheimer's Disease; Dementia

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Added to Compendium: August 2010

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