Speech Timing Measures Are Not Interchangeable Across Elicitation Methods in Senior Living Residents

Abstract

Speech-based cognitive monitoring for Alzheimers employs various tasks, but whether timing measures transfer across tasks is unclear. Twelve senior living residents completed four 60-second tasks: category fluency, two picture descriptions, and a self-generated narrative. Speech timing measures were calculated identically across tasks. Speech-rate correspondence among picture descriptions and narrative was substantial (mean {rho} = 0.72). Correspondence with category fluency increased from Cookie Theft to contemporary picture to narrative in terms of speech rate ({rho} = 0.36, 0.51, 0.64) and pause time ratio ({rho} = 0.14, 0.45, 0.71). Measures were not interchangeable; correspondence followed an ordering consistent with shared retrieval demand.

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BibTeX

@misc{mekulu2026speech,
  title = {{Speech Timing Measures Are Not Interchangeable Across Elicitation Methods in Senior Living Residents}},
  author = {K. Mekulu and N. Etter and T. Brearly and H. Yang},
  howpublished = {medRxiv},
  year = {2026},
  month = sep,
  doi = {10.64898/2026.09.23.26363840},
  url = {https://www.medrxiv.org/content/10.64898/2026.09.23.26363840v1},
  note = {CC BY},
}

RIS

TY  - UNPB
TI  - Speech Timing Measures Are Not Interchangeable Across Elicitation Methods in Senior Living Residents
AU  - K. Mekulu
AU  - N. Etter
AU  - T. Brearly
AU  - H. Yang
PY  - 2026
DA  - 2026/09/23
PB  - medRxiv
DO  - 10.64898/2026.09.23.26363840
UR  - https://www.medrxiv.org/content/10.64898/2026.09.23.26363840v1
AB  - Speech-based cognitive monitoring for Alzheimers employs various tasks, but whether timing measures transfer across tasks is unclear. Twelve senior living residents completed four 60-second tasks: category fluency, two picture descriptions, and a self-generated narrative. Speech timing measures were calculated identically across tasks. Speech-rate correspondence among picture descriptions and narrative was substantial (mean {rho} = 0.72). Correspondence with category fluency increased from Cookie Theft to contemporary picture to narrative in terms of speech rate ({rho} = 0.36, 0.51, 0.64) and pause time ratio ({rho} = 0.14, 0.45, 0.71). Measures were not interchangeable; correspondence followed an ordering consistent with shared retrieval demand.
ER  -

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