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Haejung Joung,Dahyun Yi,Hyejin Ahn,Younghwa Lee,Min Soo Byun,Kiyoung Sung,Dongkyun Han,Dong Young Lee,KBASE Research Group 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.6
Objective The Block Design Test (BDT) is known to be an effective measure in diagnosing age-related cognitive decline of visuospatial function. The goal of this study is to investigate the effects of age, education years, and gender on the performance of the BDT and to provide normative data in Korean community-dwelling participants who are 55 to 90 years old.Methods The participants were 432 non-demented adults aging from 55 to 90 years old. The BDT was administered to participants according to its manual. Multiple linear regressions and analyses of variance were conducted, including age, gender, and educations were used as covariates.Results Age, educational years, and gender were found to be significantly associated with performance on the BDT. As age increased, BDT performance decreased. Educational years were associated with BDT performance. Men showed higher performance (29.9±10.3) compare to women (26.1±8.7). The BDT is influenced by age, educational years, and gender.Conclusion Unlike the previous study, the current study shows that gender has a significant influence in visuospatial ability in the old population. Present normative data will be useful for clinicians in evaluating aging participants with cognitive impairment.
Normative Data of the Phonemic Fluency Test in Korean Middle-Aged and Elderly Population
Dahyun Yi,Younghwa Lee,Haejung Joung,Hakyoung Kim,Hyejin Ahn,Min Soo Byun,Jun Ho Lee,Gi Hwan Byeon,Dong Young Lee 대한노인정신의학회 2020 노인정신의학 Vol.24 No.1
Objective:The available normative data for the phonemic fluency test in Korean older adults have concerns for its utility. The aim of the currently study is to provide the normative data that overcome the issues of the previous norms. Methods:Total of 443 middle- and old-aged non-demented adults participated in this study. All participants underwent comprehensive assessments conducted by trained psychiatrists and psychologists. Diagnosis was made based on formal guidelines prior to administering the phonemic fluency test. Results:The norms on two age groups (50-59 and 60-90 years) with different strata of the education levels for the age groups are provided. Conclusion:The goal of the current study, which was to overcome the shortcomings of the previously published normative data and establish an updated reference for the Korean version of the phonemic fluency test, is achieved.
Yebin D. Ahn,Dahyun Yi,Haejung Joung,Eun Hyun Seo,Young Hwa Lee,Min Soo Byun,이준호,So Yeon Jeon,Jun-Young Lee,Bo Kyung Sohn,Dong Young Lee,KBASE Research Group 대한신경정신의학회 2019 PSYCHIATRY INVESTIGATION Vol.16 No.11
Objective The purpose of this study is to identify the demographic variables that are affecting performances on the Logical Memory (LM) subtest included in the Korean version of the Wechsler Memory Scale (WMS)-IV and to provide normative data on the LM subtest for the middle-age and elderly Korean people. Methods The participants were 435 non-demented adults aging from 50 to 90 and with the educational level ranging from 0 to 21 years. Results Age and education were found to be significantly associated with performance on the LM subtest, while gender effect was not statistically significant. Therefore, we stratified the norm blocks by age and education. Age was divided into three groups: 50–59, 60–74, and 75–90 years. Education was stratified into three groups: 0–8 years, 9–12 years, and 13 years or more. Conclusion The normative data provided in the current study are expected to be useful in clinical and research settings to detect or define subtle changes in episodic memory in Korean adults and elderly, and can also be used for cross-cultural comparison of verbal episodic memory performance among elderly populations using different languages.
Validation of the Korean Version of the Anosognosia Questionnaire for Dementia
Gi Hwan Byeon,Woo Jin Kim,Min Soo Byun,Jun Ho Lee,So Yeon Jeon,Kang Ko,Kiyoung Sung,Dongkyun Han,Haejung Joung,Younghwa Lee,Gijung Jung,Han Na Lee,Dahyun Yi,Dong Young Lee 대한신경정신의학회 2021 PSYCHIATRY INVESTIGATION Vol.18 No.4
Objective Anosognosia is a common phenomenon in individuals with dementia. Anosognosia Questionnaire for dementia (AQ-D) is a well-known scale for evaluating anosognosia. This study aimed to establish a Korean version of the AQ-D (AQ-D-K) and to evaluate the reliability and validity of the AQ-D-K in patients with Alzheimer’s disease (AD) dementia. Methods We translated the original English version of AQ-D into Korean (AQ-D-K). Eighty-four subjects with very mild or mild AD de-mentia and their caregivers participated. Reliability of AQ-D-K was assessed by internal consistency and one-month test-retest reliability. Construct validity and concurrent validity were also evaluated. Results Internal consistencies of the AQ-D-K patient form and caregiver form were high (Cronbach alpha 0.95 and 0.93, respectively). The test-retest reliability of AQ-D-K measured by intra-class correlation coefficient was 0.84. Three factors were identified: 1) anosognosia of instrumental activity of daily living; 2) anosognosia basic activity of daily living; and 3) anosognosia of depression and disinhibition. AQ-D-K score was significantly correlated with the clinician-rated anosognosia rating scale (ARS), center for epidemiological studies-de-pression scale (CES-D) and state-trait anxiety inventory (STAI). Conclusion The findings suggest that the AQ-D-K is a reliable and valid scale for evaluating anosognosia for AD dementia patients us-ing Korean language. Psychiatry Investig 2021;18(4):324-331