Neural Plasticity / 2018 / Article / Tab 3

Clinical Study

Mixed-Effects Modeling of Neurofeedback Self-Regulation Performance: Moderators for Learning in Children with ADHD

Table 3

Results for NF learning with respect to condition (feedback/transfer) and time (cross-/within-session).

Cross-session learningWithin-session learning
FeedbackTransferFeedbackTransfer
BCIBCIBCIBCI

Fixed parts
Intercept−3.95−5.58 to −2.44<0.001−1.06−2.72–0.680.218−2.65−3.86 to −1.40<0.0011.27−0.38–2. 680.095
Session−0.00−0.17–0.160.9940.03−0.18–0.210.797
Bins−0.29−0.40 to −0.18<0.001−0.40−0.61 to −0.20<0.001
Task1.66−0.04–3.310.061−2.40−4.50 to −0.560.0142.792.14–3.41<0.001−2.92−4.34 to −1.27<0.001
Age−0.49−1.28–0.270.214−0.59−0.94 to −0.240.002−0.62−1.20 to −0.160.014−0.40−0.78 to −0.000.040
MPH1.18−1.44–3.660.3844.111.34–7.130.0061.17−0.57–2.870.1761.71−0.03–3.400.051
IQ−0.08−0.14 to −0.020.006−0.07−0.13 to −0.010.018
Session: task0.15−0.02–0.340.1230.20−0.02–0.40.072
Bins: task0.330.07–0.560.011
Session: age−0.01−0.09–0.080.858
Task: age−0.42−1.33–0.430.342−0.40−0.71 to −0.080.016
Session: MPH−0.05−0.32–0.210.745−0.27−0.63–0.060.124
Task: MPH−1.56−4.53–1.910.308−4.35−7.54 to −1.130.010−0.79−1.98–0.390.177
Age: MPH0.38−4.53–1.910.538−0.73−1.45–0.090.066
Session: task: age−0.01−0.12–0.090.804
Session: task: MPH0.12−0.20–0.460.4640.390.05–0.760.036
Session: age: MPH−0.15−0.28 to −0.010.029
Task: age: MPH−1.41−2.70–0.0190.0420.860.36–1.350.001
Session: task: age: MPH0.320.16–0.47<0.001
Random parts
σ241.77649.17417.87032.477
τ00, subject7.2148.5019.09313.320
τ11, session0.07340.1325
τ11, bins0.055690.1231
ρ01−0.455−0.620−0.585−0.735
Observations14001380959959

Mixed-effects model results for NF learning. The dependent variable is mean amplitude (μV) of baseline-corrected trials. Feedback/transfer: condition where a feedback stimulus is (feedback) or is not (transfer) visible. Session: session number, 15 double training sessions in total. Bins: bin number, 10 bins in total. Task: performance in the deactivation (generation of positive potential shifts) versus activation tasks (generation of negative potential shifts). MPH: on constant methylphenidate medication (yes versus no). α2: within-subject residual variance. τ00, subject: between-subject variance. τ11: random slope variance. ρ01: random intercept slope correlation.