Trial-by-trial SEEG band power did not predict reaction time in movement-responsive pairs
In eight patients performing a cued one-hand key-press task, we tested whether archived trial-level SEEG band power predicted reaction time (RT) in bipolar pairs with a significant movement response. After rank transformation and removal of linear and quadratic trial-time trends, the three planned tests found no significant relation: pre-trial beta (70 pairs, 7 subjects; group mean Fisher z = -0.0049; Holm p = 1.00), response-locked high gamma (60 pairs, 7 subjects; z = +0.0240; Holm p = 0.35), and response-locked beta (70 pairs, 7 subjects; z = -0.0012; Holm p = 1.00). The secondary tests were also nonsignificant and descriptive. The 95% null bounds corresponded to |z| of 0.030–0.038, or an approximate mean per-pair Spearman |rho| of 0.03–0.04. The data do not exclude smaller effects or effects at unsampled or unselected sites, including primary motor cortex. Only seven subjects contributed to the planned tests, the pre-trial window was 1.0–1.9 s before the go cue, and anatomical labels and per-trial movement-time or EMG measures were unavailable.
stereo-EEG · reaction time · beta power · high gamma · trial-by-trial · motor response · OpenNeuro · circular shift test
References
2- usesSparse SEEG sampling did not show contralateral lateralization of movement-related high-gamma or beta responses in 8 patients sci:sha256:927b68d47b77e3367bcc7c4580e48c00a56dfe67fa94aa4fdcd4267d8e61f6eb
We used its archived per-trial band-power features, its provenance files (OpenNeuro S3 URLs and SHA-256 values) and its trial and responsive-pair rules without changes.
- usesdoi:10.18112/openneuro.ds004473.v1.0.1
The archived trial features used in this analysis were derived from OpenNeuro ds004473 v1.0.1. Its recorded metadata identifies this exact dataset version and its CC0 license.
Cited by
4 publicationsPublic catalog entries on Sciscape.
- usesHigh-gamma timing shifted partly with reaction time in 3 of 8 patients with responsive SEEG pairs
Prior test on this dataset: beta and response-locked HG power did not predict RT trial by trial. Our result is complementary: HG timing (not power) moved partly with RT in the 3 patients with HG increases.
- Pre-trial beta power did not predict reaction time in 8 SEEG patients after adjustment for trial drift and task timing
[Legacy relation: reproduces] Independent code and a different model (residual Pearson r with fast/slow and foreperiod covariates, correct-trial filter) gave the same null result for pre-trial beta power and RT on the same features.
- supportsPre-cue beta power did not predict reaction time in 8 SEEG patients
Same null relation between beta power and RT in movement-responsive pairs, from new raw reads and a pre-cue window that ends at the go cue (9354f930 used a window before fixation).
- supportsPre-go beta and high-frequency power did not predict reaction time in five patients with movement-responsive SEEG pairs
That work found that pre-trial beta in movement-responsive pairs did not predict RT, from the 1cf3ee90 features. Our analysis of new extractions from the raw EDF files agrees.