AI Article Synopsis

  • The study focuses on evaluating a new digital assessment for processing speed (PS) in adults aged 45-75, specifically to detect cognitive changes potentially related to Alzheimer’s disease.
  • It compares this new digital test, the digit-symbol substitution test (DDSST), to a traditional gold-standard measure (RBANS-C) using statistical methods to determine their correlation and agreement.
  • Findings show a strong correlation and no significant differences in mean scores between the two tests, indicating that the DDSST is a valid and efficient tool for assessing processing speed.

Article Abstract

Background: Assessing cognitive constructs affected by Alzheimer disease, such as processing speed (PS), is important to screen for potential disease and allow for early detection. Digital PS assessments have been developed to provide widespread, efficient cognitive testing, but all have been validated only based on the correlation between test scores. Best statistical practices dictate that concurrent validity should be assessed for agreement or equivalence rather than using correlation alone.

Objective: This study aimed to assess the concurrent validity of a novel digital PS assessment against a gold-standard measure of PS.

Methods: Adults aged 45-75 years (n=191) participated in this study. Participants completed the novel digital digit-symbol substitution test (DDSST) and the Repeatable Battery for the Assessment of Neuropsychological Status coding test (RBANS-C). The correlation between the test scores was determined using a Pearson product-moment correlation, and a difference in mean test scores between tests was checked for using a 2-tailed dependent samples t test. Data were analyzed for agreement between the 2 tests using Bland-Altman limits of agreement and equivalency using a two one-sided t tests (TOST) approach.

Results: A significant moderate, positive correlation was found between DDSST and RBANS-C scores (r=.577; P<.001), and no difference in mean scores was detected between the tests (P=.93). Bias was nearly zero (0.04). Scores between the tests were found to display adequate agreement with 90% of score differences falling between -22.66 and 22.75 (90% limits of agreement=-22.91 to 22.99), and the scores were equivalent (P=.049).

Conclusions: Analyses indicate that the DDSST is a valid digital assessment of PS. The DDSST appears to be a suitable option for widespread, immediate, and efficient PS testing.

Trial Registration: ClinicalTrials.gov NCT04559789; https://clinicaltrials.gov/ct2/show/NCT04559789.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9919459PMC
http://dx.doi.org/10.2196/36663DOI Listing

Publication Analysis

Top Keywords

novel digital
12
test scores
12
digital digit-symbol
8
digit-symbol substitution
8
substitution test
8
processing speed
8
alzheimer disease
8
correlation test
8
concurrent validity
8
test
7

Similar Publications

Quantum Simulation of Partial Differential Equations via Schrödingerization.

Phys Rev Lett

December 2024

Institute of Natural Sciences, School of Mathematical Sciences, MOE-LSC, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.

We present a novel new way-called Schrödingerization-to simulate general (quantum and nonquantum) systems of linear ordinary and partial differential equations (PDEs) via quantum simulation. We introduce a new transform, referred to as the warped phase transformation, where any linear-including nonautonamous-system of ordinary or partial differential equation can be recast into a system of Schrödinger's equations, in real time, in a straightforward way. This approach is not only applicable to PDEs for classical problems but is also useful for quantum problems, including the preparation of quantum ground states and Gibbs thermal states, the simulation of quantum states in random media in the semiclassical limit, simulation of Schrödinger's equation in a bounded domain with artificial boundary conditions, and other non-Hermitian physics.

View Article and Find Full Text PDF

Background: The genomes of publicly available electroactive Pseudomonas aeruginosa strains are currently limited to in-silico analyses. This study analyzed the electroactive Pseudomonas aeruginosa PBH03 genome using comparative in-silico studies for biotechnological applications.

Objective: Comparative in-silico and experimental analyses were conducted to identify the novel traits of P.

View Article and Find Full Text PDF

Background: The rise of wearable sensors marks a significant development in the era of affective computing. Their popularity is continuously increasing, and they have the potential to improve our understanding of human stress. A fundamental aspect within this domain is the ability to recognize perceived stress through these unobtrusive devices.

View Article and Find Full Text PDF

Background: Postoperative complications are prone to occur in patients after radical pancreaticoduodenectomy (PD). This study aimed to construct and validate a model for predicting postoperative major complications in patients after PD.

Methods: The clinical data of 360 patients who underwent PD were retrospectively collected from two centers between January 2019 and December 2023.

View Article and Find Full Text PDF

Digital mapping of resected cancer specimens: The visual pathology report.

J Pathol Inform

December 2024

Vanderbilt University Medical Center, Department of Otolaryngology - Head and Neck Surgery, Nashville, TN, United States of America.

Background: The current standard-of-care pathology report relies only on lengthy written text descriptions without a visual representation of the resected cancer specimen. This study demonstrates the feasibility of incorporating virtual, three-dimensional (3D) visual pathology reports to improve communication of final pathology reporting.

Materials And Methods: Surgical specimens are 3D scanned and virtually mapped alongside the pathology team to replicate grossing.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!

A PHP Error was encountered

Severity: Notice

Message: fwrite(): Write of 34 bytes failed with errno=28 No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 272

Backtrace:

A PHP Error was encountered

Severity: Warning

Message: session_write_close(): Failed to write session data using user defined save handler. (session.save_path: /var/lib/php/sessions)

Filename: Unknown

Line Number: 0

Backtrace: