Analysis 6A — onset timing during stimulus omission

Macaque multi-area laminar electrophysiology · Exploratory analysis not publication-final

SPK timing

Single-unit omission onset latency. 187 units resolve out of 4,130 eligible units.

A1 · Census funnel

Stepn of eligiblemeaning
1. Eligible units4,130100.0%every spike-sorted unit with an analysable omission arm
2. Omission response detected63715.4%a change from baseline exists (this is DETECTED, not resolved)
3. Omission latency resolved1874.5%independent estimators agree to within the spread criterion
4. Stimulus reference defined1393.4%the unit also has an analysable stimulus arm, so ΔT exists
5. |ΔT| > 50 ms962.3%descriptive subset; not an inferential threshold

Naming hazard, stated explicitly: in the underlying receipts the column named resolved counts detected responses (637), not resolved latencies (187). The public tables rename these to n_omission_detected and n_latency_resolved so the two cannot be confused downstream.

A2 · Per-unit resolved latency

One point per resolved unit, sorted by latency, with Tom ± 1.96 × bootstrap SD. Subject is encoded by colour and response direction by marker shape, independently — area is available on hover rather than as a visual grouping, so the display cannot suggest an area hierarchy the design cannot support.

Median Tom = 190 ms (IQR 120–250 ms; 86 increases, 101 decreases). All onsets are one-sided by construction: the estimator search window begins at the omitted event, so no unit can report an onset before it. A pre-zero deviation lands on the bound or returns undefined — it is never negative.

Source table: analysis6a_spk_resolved_public.csv (187 rows).