Abstract
ABSTRACTThere are contradictory results or lack of validity studies concerning the naming function and brain laterality. Although anomia is a frequent symptom of memory impairment, and the most relevant symptom of aphasia, few studies have been conducted to evaluate its validity for detecting patients with left-hemisphere damage (LD), as per the MeSH definition.Objective:To validate a paper-and-pencil confrontation naming test (CNT) according to side of brain injury; to select a valid and reliable abbreviated CNT wherein the effect of demographic variables is minimized; and to use the selected CNT to develop a computer-aided confrontation-naming evaluation (CACNE).Methods:Control data were obtained from 213 healthy participants (HP) aged 15 to 89 years. A subsample of 106 HP was demographically matched to 39 patients with LD and 40 patients with right-hemisphere damage (RD). Anomia definition and CNT cues were considered for the CACNE.Results:Test-retest and inter-rater reliability, internal consistency, and validity for detecting LD were demonstrated. A significant age effect was observed in HP. The CACNE was developed to detect anomia in interaction with environmental interventions.Conclusion:The inconsistencies observed in the CNT studies were probably due to the presence of anomia in almost 50% of the RD patients.
Highlights
There are contradictory results or lack of validity studies concerning the naming function and brain laterality
We developed the parallel forms from the initial confrontation naming test (CNT) and verified the internal consistency of these abbreviated scales, along with the effect of demographic variables in a sample of 213 healthy participants (HP) aged 15 to 89 years
Just for descriptive purposes, and considering the three CNT, Bonferroni’s post-hoc test indicated that comparisons between age ranges were significant only for women aged 30-44 years with second level of education, who were the participants with the best performance, versus women aged 60-74 and 75-90 years with first level of education, who were the participants with the worst performance
Summary
There are contradictory results or lack of validity studies concerning the naming function and brain laterality. Anomia is a frequent symptom of memory impairment, and the most relevant symptom of aphasia, few studies have been conducted to evaluate its validity for detecting patients with left-hemisphere damage (LD), as per the MeSH definition. Embora a anomia seja um sintoma frequente de comprometimento da memória e o sintoma mais relevante da afasia, poucos estudos foram realizados para avaliar sua validade na detecção de pacientes com lesão no hemisfério esquerdo (LHE) conforme definição do MeSH. Resultados: A confiabilidade teste-reteste e interexaminador, consistência interna e validade para a detecção de LHE foram demonstradas. Based on the above assumptions, and in spite of the definition of anomia, few studies have been conducted to evaluate the validity of this measure for detecting lesions in the left hemisphere. Contradictory findings have been reported when confrontation naming tests (CNT), in particular, have been employed (see reports).[7,8,9,10,11,12,13]
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