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PreprintCC BYbioRxiv

Investigating the role of the hippocampus in the implicit and explicit expression of statistical learning in patients with temporal lobe epilepsy

  • E. Cordeiro1
  • D. Herrera Chaves
  • N. Talei
  • I. Castro
  • B. Hayman-Abello
  • S. Hayman-Abello
  • T. McAuley
  • A. Suller-Marti
  • S. Köhler
  • L. Batterink
  1. 1University of Western Ontario
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Abstract

Statistical learning (SL) has been proposed to depend on the hippocampus, but traditional neuropsychological theories of long-term memory posit that the hippocampus is only necessary for explicit memory processes, not implicit memory processes. To reconcile these two accounts, we exposed 27 temporal lobe epilepsy (TLE) patients to a continuous speech stream containing embedded trisyllabic words, then tested their statistical knowledge using both implicit and explicit behavioural measures. TLE patients showed impairments on two explicit measures of SL alongside intact performance on an implicit measure of SL. These results suggest that the hippocampus may only be necessary for the explicit expression, but not the initial acquisition or implicit expression, of statistical knowledge.

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Cite

BibTeXRIS
BibTeX
@misc{cordeiro2026investigating,
  title = {{Investigating the role of the hippocampus in the implicit and explicit expression of statistical learning in patients with temporal lobe epilepsy}},
  author = {E. Cordeiro and D. Herrera Chaves and N. Talei and I. Castro and B. Hayman-Abello and S. Hayman-Abello and T. McAuley and A. Suller-Marti and S. Köhler and L. Batterink},
  howpublished = {bioRxiv},
  year = {2026},
  month = sep,
  doi = {10.64898/2026.09.04.749513},
  url = {https://www.biorxiv.org/content/10.64898/2026.09.04.749513v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Investigating the role of the hippocampus in the implicit and explicit expression of statistical learning in patients with temporal lobe epilepsy
AU  - E. Cordeiro
AU  - D. Herrera Chaves
AU  - N. Talei
AU  - I. Castro
AU  - B. Hayman-Abello
AU  - S. Hayman-Abello
AU  - T. McAuley
AU  - A. Suller-Marti
AU  - S. Köhler
AU  - L. Batterink
PY  - 2026
DA  - 2026/09/04
PB  - bioRxiv
DO  - 10.64898/2026.09.04.749513
UR  - https://www.biorxiv.org/content/10.64898/2026.09.04.749513v1
AB  - Statistical learning (SL) has been proposed to depend on the hippocampus, but traditional neuropsychological theories of long-term memory posit that the hippocampus is only necessary for explicit memory processes, not implicit memory processes. To reconcile these two accounts, we exposed 27 temporal lobe epilepsy (TLE) patients to a continuous speech stream containing embedded trisyllabic words, then tested their statistical knowledge using both implicit and explicit behavioural measures. TLE patients showed impairments on two explicit measures of SL alongside intact performance on an implicit measure of SL. These results suggest that the hippocampus may only be necessary for the explicit expression, but not the initial acquisition or implicit expression, of statistical knowledge.
ER  -