HBN ERSP practicum: full pipeline tracker (Phases 1-6)

[MinaNourhashemi]

Tracking issue for the HBN 'The Present' ERSP practicum threaded through Weeks 3-9.

Research question: Do early (0-500 ms) neural responses differ when a movie shot opens with the boy vs the puppy? Metric: event-related spectral perturbation (ERSP) aligned to shot onsets.

Dataset: HBN-EEG R3 (ds005507). Development on R3-mini (100 Hz, 20 subjects) until pipeline is validated.

Contrast selected: Boy-only vs Puppy-only (has_boy=1 AND has_puppy=0 vs has_boy=0 AND has_puppy=1), 20 vs 15 trusted shots. Cleanest social-stimulus contrast; LLR used as regressor of no interest.

Phases

• Phase 1: BIDS import and preprocessing (R3-mini) -- Phase 1: BIDS import and preprocessing pipeline (R3-mini) #11
• Phase 2: AMICA + dipfit per subject
• Phase 3: IClabel classification and brain-component selection
• Phase 4: Shot events expansion and epoching
• Phase 5: ERSP precompute and IC clustering
• Phase 6: Group statistics and manuscript-ready figures

Each phase is a sub-issue, a branch, and a PR. Phase 2+ are opened once Phase 1 merges.

References

• sessions/week-03/practicum/project_brief.md -- full specification
• sessions/week-03/practicum/shot_events.tsv -- 56 shots with has_boy/has_puppy/LLR