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PAPER LME REPLICATION -- mergeNaive (days 0-10)
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model: behavior ~ stim + day + stim:day + (1|rat)   [stim: Electrode-Box-B2=1 vs Electrode-Box-A2=0]
behavior = successful reaches (COUNT per session)
N = 11 rats, 115 sessions   (day raw; day 0 = paper "Day 1")
day coverage: stim(B2) 0..10, control(A2) 0..10
(Equal day coverage -- the stim:day interaction over this window is NOT
 confounded by the full-range coverage imbalance.)

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FULL MODEL SUMMARY -- fitlme: behavior ~ stim + day + stim:day + (1|rat)
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Linear mixed-effects model fit by ML

Model information:
    Number of observations             115
    Fixed effects coefficients           4
    Random effects coefficients         11
    Covariance parameters                2

Formula:
    behavior ~ 1 + day*stim + (1 | rat)

Model fit statistics:
    AIC       BIC       LogLikelihood    Deviance
    952.54    969.01    -470.27          940.54  

Fixed effects coefficients (95% CIs):
    Name                   Estimate    SE         tStat     DF     pValue    
    {'(Intercept)'}         10.33       4.3573    2.3706    111      0.019482
    {'day'        }        8.0907      0.51948    15.575    111    1.0806e-29
    {'stim'       }        9.4432       7.1538      1.32    111       0.18954
    {'day:stim'   }        1.6184       0.8216    1.9699    111      0.051345


    Lower         Upper 
        1.6953    18.964
        7.0613      9.12
       -4.7326    23.619
    -0.0096134    3.2465

Random effects covariance parameters (95% CIs):
Group: rat (11 Levels)
    Name1                  Name2                  Type           Estimate
    {'(Intercept)'}        {'(Intercept)'}        {'std'}        8.4877  


    Lower     Upper 
    5.0001    14.408

Group: Error
    Name               Estimate    Lower     Upper 
    {'Res Std'}        13.352      11.652    15.299



effect                     t(df) / F(df1)     p (resid)    Satterthwaite: p (df)
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stim x day (interaction)   t(111)=  1.97 F(1)=  3.880  p=0.05134    p=0.05149 (df=105)
day (learning)             t(111)= 15.57 F(1)=242.567  p=1.081e-29    p=3.188e-29 (df=107)
stim (main, Day 1)         t(111)=  1.32 F(1)=  1.742  p=0.1895    p=0.2003 (df=22)
interaction 95% CI: [-0.01, +3.25]

HONEST LME -- per-rat random slope (day|rat): interaction F(1,10.1)=2.00, p=0.1875
  Satterthwaite DF on the random-INTERCEPT model above stays ~= residual (the
  slope's error is at session level), so it does NOT fix pseudoreplication. A per-animal
  random slope collapses the interaction DF toward the animal count -- the honest test.

INTERPRETATION
  - stim x day interaction: n.s. (p=0.0513, slope diff=+1.62) -> slopes parallel -- no differential learning rate over this window.
  - stim main effect on Day 1 (our day 0): n.s. (p=0.1895) -> groups are comparable on Day 1.

Paper (N=24): interaction t(227)=2.68, F(1)=7.12, p=0.008; day t(227)=9.64,
  F(1)=267.64, p=1.2e-18; stim t(227)=0.23, F(1)=0.053, p=0.81.