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catFR1 subsequent-memory pilot and 25-subject cohort - #11

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Autoplectic merged 2 commits into
catfr-library-fixesfrom
catfr-pilot
Oct 26, 2026
Merged

Autoplectic merged 2 commits into
catfr-library-fixesfrom
catfr-pilot

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Stacked on #10 (uses compare_networks(curtail=..., map_fn=...)).

Scripts in examples/catfr/ and a report in reports/catfr_pilot.md, running infoflow on the UPenn categorized free recall iEEG dataset (OpenNeuro ds004809).

Findings

  • Data alignment. The dataset's BIDS onset column is offset from the recording by 1 s to 15 min per session. Epochs must use sample / sfreq: only those show the word-locked evoked response. common.word_events does this and documents why.
  • No subsequent-memory effect in directed flow.
    • Pilot: 3 subjects × 18 channels; one significant edge in six contrasts.
    • Cohort: 25 subjects × 3 region nodes, paired between-subject test; nothing significant (18 tests, smallest q = 0.48).
    • The classical HFA amplitude effect is present in the same cohort data (PFC, p = 0.001).
  • Calibration.
    • Selecting edges per condition makes the comparison anti-conservative; pooled selection restores nominal rates for intrinsic and shared flow.
    • Synergistic per-edge p-values are mildly low between 0.01 and 0.05 (100-split check). The evidence is modest.

Scripts

  • fetch.py: rank sessions and download them.
  • prepare.py: epochs, broadband and HFA.
  • run.py: within-subject contrast and null splits.
  • null_check.py: per-edge null p-values.
  • cohort.py: streaming download, region nodes, between-subject test.
  • report.py: tables and figures.

Made with Cursor

Ryan James and others added 2 commits October 25, 2026 17:13
Scripts to select, download and epoch catFR1 sessions (OpenNeuro ds004809), run
the within-subject contrast with pooled selection and calibration nulls, a
per-edge null check, and a 25-subject region-level cohort with a between-subject
paired test; report and figures. Epochs use the events' sample column: the BIDS
onset column of this dataset is offset from the recording.

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Cursor <cursoragent@cursor.com>
@Autoplectic
Autoplectic merged commit a791b48 into catfr-library-fixes Oct 26, 2026
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