A Normative Study on the Visuospatial perception related tests in Healthy Individuals in Taiwan
Date Issued
2016
Date
2016
Author(s)
Ma, Tau-Lun
Abstract
Background: Visuospatial perception is a basic cognitive function that influences our interactions with the environment. Impairment of visuospatial perception function is common in patients with dementia with Lewy bodies (DLB), Parkinson’s disease, Alzheimer’s disease, cerebral vascular disease, and traumatic brain injury. These complications might further influence other cognitive functions. In the clinic, the Benton Judgment of Line Orientation (JLO) test and the Benton Three-Dimensional Block Construction (3-DBC) test can provide information for differential diagnosis, early detection, prognosis, and rehabilitation. However, representative normative data for research and clinical practice in Taiwan are lacking. Object: The present study aimed to construct a representative Taiwanese norm for the JLO test and the 3-DBC test. Psychometric properties and influences of demographical variables on the performance of the visuospatial related tests were investigated. Method: We recruited 319 healthy adults stratified by age, educational level, gender, and area of residence. A subgroup of 30 participants was retested at least 2 months later for a test-retest reliability examination. Another subgroup of 30 participants completed other neuropsychological tests for a validity examination. Thirty patients with Alzheimer’s disease were also retrospectively collected for verifying the construct validity. Results: Age and education significantly influenced all performance, and gender affected performance on the JLO test. Our results revealed adequate test-retest reliability, criterion-related validity and construct validity of the JLO test and the 3-DBC test. The normative data showed good representativeness, recency, and relevance. Conclusion: The JLO test and the 3-DBC test have adequate reliability and validity. Our study provides representative and demographic-corrected normative data for research and clinical utility.
Subjects
the Judgment of Line Orientation (JLO) test
the Benton Three-Dimensional Block Construction
normative study
demographic variables
reliability and validity
Type
thesis
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