What question did this study set out to answer?

This research aims to pre-register predictions regarding theta peak frequency and coupling ratios in neural activity.

June 12, 2026Open Access

Pre-Registered Preditions for CGT COGITATE Experiment 1 data on 10th June 2026 - PR-1, PR-2, PR-4

Key Points

This research aims to pre-register predictions regarding theta peak frequency and coupling ratios in neural activity.
Pre-registered data analysis of resting-state theta and task-activated theta using MEG data from the HCP cohort.
Three predictions (PR-1, PR-2, PR-4) focusing on theta frequency and gamma coupling relationships are articulated and supported by prior studies.
Utilization of specification and replication methodologies to strengthen the findings.
PR-1 establishes a population median resting-state theta peak of 7.431 Hz within a 0.5 Hz margin.
PR-2 predicts a within-subject theta shift from 7.431 Hz at rest to 6.369 Hz during task performance.
PR-4 speculates on a theta-gamma coupling ratio of approximately 7, indicating complex neural interactions.

Abstract

Pre-Registered Preditions for CGT COGITATE Experiment 1 data on 10th June 2026 - PR-1, PR-2, PR-4 Predictions: PR-1, PR-2, PR-4 as follows: PR-1: HCP MEG Resting-State ThetaFiles: "PR1PREREGHCPMEGᵣestingₜheta. pdf" + "PR1ᵥerification. py"Pre-Registered Prediction: CGT Resting-State Theta Peak Frequency in the HCP MEG Cohort*Description (abstract): Pre-registers θ = Y/ln (R) = 7. 431 Hz (DERIVED) as the population median resting-state theta peak in the HCP S1200 MEG cohort, ±0. 5 Hz confirmation / ±0. 05 Hz strong window, FOOOF peak-fit pipeline frozen before analysis. An independent (MEG) replication of the n=176 EEG result. - cites 10. 5281/zenodo. 20528338 (Paper 35, theta replication n=176) - cites 10. 5281/zenodo. 19130897 (Paper 19, θ = Y/ln (R) ) - cites 10. 5281/zenodo. 18804570 (Paper 11, Y=7) - is supplement to 10. 5281/zenodo. 20527308 (CGT Complete Theory) PR-2: Resting↔Task Within-Subject Theta ShiftFiles: "PR2PREREGᵣestingᵥsₜaskₜheta. pdf" + "PR2ᵥerification. py"Pre-Registered Prediction: CGT Within-Subject Resting-to-Task Theta Shift (θᵣest → θₜask) Description: Pre-registers the within-subject relationship θᵣest = 7. 431 Hz (DERIVED) → θₜask = 6. 369 Hz (IMPLIED), ratio Y/ (Y−1) = 7/6 (joint shift IMPLIED), on HCP MEG (rest + WM task, fully blind, primary) and COGITATE (task side disclosed, semi-blind). - cites 10. 5281/zenodo. 20416523 (R-067, task-evoked theta derivation) - cites 10. 5281/zenodo. 20528392 (Paper 42, COGITATE Experiment 1) - cites 10. 5281/zenodo. 20528338 (Paper 35) - is continued by / relates to PR-1 (above, within this same zenodo record) PR-4: Theta–Gamma Coupling Ratio ≈ Y (NF-1) Files: "PR4PREREGNF1ₜhetagammacoupling. pdf" + "PR4ᵥerification. py"Pre-Registered Prediction: CGT Theta–Gamma Coupling Ratio ≈ Y (NF-1) Description: Pre-registers the population theta–gamma phase–amplitude coupling ratio ≈ Y = 7 (SPECULATIVE) on PhysioNet eegmmidb, with the contested-gamma downside risk disclosed; the only genuinely-new item from the proposed neural Registered-Predictions set. - cites 10. 5281/zenodo. 20528027 (Paper 20, gamma open prediction + DA-2r invalidation) - cites 10. 5281/zenodo. 18817350 (Paper 15, Registered Predictions) - relates to PR-1 and PR–2 (theta backbone, both above, within this same record)

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