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Updated: Feb 2, 2026

A Real-world What-Where-When Memory Test
Published on: May 16, 2017
Relationship of Working Memory, Processing Speed, and Fluid Reasoning in Psychiatric Patients
Se-Jin Kim1, Eun Hee Park1,2
1Department of Psychiatry, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea.
Objective:
The present study aimed to investigate relationship among cognitive factors (working memory and processing speed) and fluid reasoning (Gf) in psychiatric patients using a standardized clinical tool.
Methods:
We included the responses of 115 heterogeneous patients who were diagnosed with the MINI-Plus 5.0 and WAIS-IV/WMSIV was administered. For our analysis, structured equation modeling (SEM) was conducted to evaluate which cognitive variables are closely related to the Gf.
Results:
The results showed that the visual working memory was the strongest predictor of the Gf compared to other cognitive factors.
Conclusion:
Processing speed was capable of predicting the Gf, when visual working memory was controlled. The inter-relationship among the Gf and other cognitive factors and its clinical implications were further discussed.
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