Inspector

This is an ex vivo optogenetic mouse whole-heart optical mapping recording associated with spiral-wave termination experiments. Use 1000 Hz: the linked paper states 64 × 64 camera acquisition at 1 kHz, and the deposit’s 64 × 55 frame size is consistent with a cropped version; this agrees with the frame rate already on record. The deposited movie is not truly raw camera output: depositor documentation and measurements indicate masking, temporal/spatial smoothing, and normalization. Polarity is robustly inverted, so depolarization appears as a downward deflection. Illumination was already on before frame 0 and turned off at frame 4977; the frame-3170 image step should be treated as a fluorescence baseline/rhythm-change event with provisional interpretation as spiral termination, not as light onset.

Inspector report 2026-10-27 20:27 UTC, model openai:gpt-5.5, provisional. Per-pixel SNR is high by the provisional metric: median = 32.506531024253725, p10 = 26.87502130582481, p90 = 44.884363625066875 over 3000 frames. Because the deposit is documented and measured as temporally smoothed, the tool caveat applies: white-noise assumptions can underestimate noise and inflate SNR. The depositor NaN mask in frame 0 contains 2332 tissue pixels out of 3520 total pixels, coverage = 0.6625, with 1188 NaN pixels. Acquisition log detects illumination already on at the first deposited frame: led_trigger transition occurred before_first_frame, 23.0 frames before frame 0, reported as illumination_on at frame 0 with uncertainty 11 frames; photodiode agrees. Acquisition log detects illumination_off at frame 4977 with uncertainty 11 frames; photodiode agrees. Image analysis detects a baseline_step at frame 3170 with uncertainty 17 frames: this measurement only shows the tissue-mean fluorescence baseline changed, not illumination onset. A stored project-lead interpretation, citing Hussaini et al. 2023 Fig 2C, labels the frame-3170 step as “spiral termination under illumination”; the source caveat says the paper does not name M13Rec001 and the termination assignment is inferred from timing, so it should be treated as provisional interpretation, not a direct measurement. The stored image-based “illumination_on” at frame 3170 is contradicted by the DAQ led_trigger and photodiode, which show light already on from before frame 0 until frame 4977. The tissue-mean slow baseline changes substantially: baseline_start = 1.439404845237732, baseline_end = -0.17559432983398438, baseline_change = -1.6149991750717163, which is -1.1213198412261043 times the beat amplitude; slow_baseline_range = 3.3284222781658173 and monotonic_trend_spearman = -0.4894475048599732. The tool cautions that steps from events, rhythm change, depositor normalization, or drift removal affect the baseline, so bleaching cannot be separated here.

Range checks

Compare with run 9c8458a9

A: this run, code 752b95b (uncommitted changes), None workers. B: run 9c8458a9, 2026-10-27 21:58 UTC, code 363372b (uncommitted changes), None workers. 4381 stored values differ.