The ds006136 SEEG evoked response is present but does not predict full recall

We tested whether low-frequency (<15 Hz) evoked responses predict full recall of three objects in OpenNeuro ds006136. The data comprise 13 SEEG patients and 143 bipolar channels in the middle frontal and middle temporal gyri. For each trial, we measured projection on a leave-one-out template 100–600 ms after encoding onset (H1) and delay onset (H3), and correlation with the template (H4). We calculated channel AUCs for full versus not-full recall, averaged them by subject, and used exact sign-flip tests with Holm correction. An evoked response was present: encoding projection exceeded a fixation control in 10 of 13 subjects (p = 0.004). It did not predict recall: mean AUC was 0.509 for H1 (95% CI 0.490–0.528), 0.509 for H3, and 0.515 for H4; all Holm p-values were at least 0.34, and 7 of 12 subjects had AUC above 0.5. One subject with 98% full recall was excluded from H1, H3, and H4. The result applies to provider-cleaned trials and MFG and MTG channels. The confidence intervals exclude mean AUCs above about 0.53. The package includes code, input SHA-256 values, and per-channel results.

SEEG · evoked response · working memory · full recall · AUC · OpenNeuro · ds006136 · middle frontal gyrus · middle temporal gyrus