Tablet-based SDMT: Digital metric validation and within-task learning in MCI and dementia - Takeaways - MDSpire
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Validating a Tablet-Based SDMT and Assessing Within-Task Learning in Mild Cognitive Impairment and Dementia

  • By

  • Leon Nissen

  • Alexander Hanke

  • Florian Schweizer

  • Yinqi Liu

  • Fabian Kahl

  • Carolin Rosendahl

  • Kristin Rolke

  • Judith Tillmann

  • Philipp Schaper

  • Klaus Weckbecker

  • Jochen René Thyrian

  • Stephan Jonas

  • Michael Wagner

  • Lara Marie Reimer

  • October 11, 2026

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  • 1

    The study evaluated a tablet-based Symbol Digit Modalities Test (SDMT) in a memory-clinic population with mild cognitive impairment and dementia.

  • 2

    The SDMT measures processing speed and also recruits working memory, visual scanning, associative learning, and motor functions.

  • 3

    Digital SDMTs can capture response times and interaction patterns in addition to accuracy, providing process-level measures unavailable from paper-and-pencil tests.

  • 4

    The study examined comparability between digital and oral SDMT outcomes and tested whether the Performance Index generalized from multiple sclerosis to a memory-clinic population.

  • 5

    Exploratory analyses assessed timing, interaction behaviors, and incidental learning during tablet-based SDMT administration.

Original Source(s)

Tablet-based SDMT: Digital metric validation and within-task learning in MCI and dementia

  • by Leon Nissen, Alexander Hanke, Florian Schweizer, Yinqi Liu, Fabian Kahl, Carolin Rosendahl, Kristin Rolke, Judith Tillmann, Philipp Schaper, Klaus Weckbecker, Jochen René Thyrian, Stephan Jonas, Michael Wagner, Lara Marie Reimer

  • October 11, 2026

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