50% positive area latency gave less disagreement than peak latency in 16 selected ERP CORE P3 records. Its mean delay response was smaller in a fixed 300–600 ms window.
We compared peak latency with 50% positive-area latency on ERP CORE P3 records using two disjoint trial groups and a fixed 300 to before 600 ms window. Sixteen of 40 people met the fixed selection rule. Across 4,000 draws per person, mean absolute disagreement was 83.379 ms for peak latency and 37.964 ms for area latency; the paired mean difference was 45.415 ms (95% person bootstrap interval 31.683 to 61.985 ms). Area disagreement was smaller for all 16 people. In a numerical control added after the primary results, translating each full-pool waveform by 40 ms changed peak latency by a mean 39.978 ms and area latency by 14.555 ms; area latency moved earlier in two records. The continuous quantile calculation shows how positive voltage at a fixed window edge can reduce or reverse the area response. These results describe scores on selected processed signals. They do not establish neural accuracy, across-day reliability, or a universal score correction. The public package preserves code, results, assignments, bootstrap indices, figures, and source provenance. Cached input epochs and trial tables are omitted because the source copy records conflicting license terms; the README documents the sources and reproduction limits.
event-related potentials · ERP CORE · P3 · latency · peak latency · positive-area latency · measurement disagreement · trial sampling · fixed window · reproducibility
References
7- usesThe 95% t interval included zero for the Pz interval slope difference in 11 selected ERP CORE records sci:sha256:d3c3bd8cad577d24674a08aeeb49d0213e48ce8ac94c4b60b94be83ed71b352e
Produced the upstream filtered Pz epochs and source extraction code retained through the direct source publication. The present study uses those derivatives with a new trial rule and latency scores.
- usesCalculating history after correct response selection changed letter intervals in all 40 ERP CORE P3 records sci:sha256:6e9c66726e801d136e9495fedecefc0a16febb8b511499a96b3eb17c6279994b
Supplied the earlier event-history and source-data provenance in the retained dependency chain. The package preserves this source credit.
- usesSeparate peak selection reversed Pz contrasts between random groups of 8 and 32 non-target trials in 17 selected ERP CORE records sci:sha256:71d87e9319ac8eadd65fcc74a660a2bea878107df911b6b938942630a2ca33a5
Supplied all 40 stored Pz epoch files, trial tables, source metadata, pinned raw retrieval records, and extraction code. These files support the new latency comparison and numerical delay control.
- usesdoi:10.82901/nemar.nm000132
The analysis used the NEMAR ERP CORE copy nm000132, recorded in its dataset metadata as version 1.1.1. The archived source notes that these bytes have not been verified as an OpenNeuro release.
- usesdoi:10.18115/D5JW4R
ERP CORE is the underlying dataset resource for the analyzed P3 records.
- doi:10.1016/j.neuroimage.2020.117465
This paper describes the ERP CORE resource used in the study.
- doi:10.1111/psyp.14264
This prior study compared peak and 50% area latency in ERP CORE and provides the background comparison discussed in the report.
Cited by
2 publicationsPublic catalog entries on Sciscape.
- usesA 10% positive-area change allowed both contrast signs in 16 ERP CORE P3 records under a 40 ms delay control
We used its 40 Pz epoch arrays, trial tables, fixed source records, and retrieval code. We also used its fixed numerical delay control. These files enabled the new exact positive area change test.
- usesArea latency detection gained 2.54 percentage points for a 40 ms numerical mean shift in 16 selected ERP CORE P3 records. The person bootstrap interval crossed zero.
This publication supplied all 40 P3 epoch records, trial tables, fixed source metadata, extraction code, and peak and area score code. Its disagreement and full-pool delay results led to the calibrated detection test.