analysis(matlab): per-variation subfolders (grouping x window) for the paper LME

Add make_variations.m + variation_analyze.m generating 20 self-contained
subfolders under analysis/matlab/variations/, one per grouping x day-window,
each with exactly three files: data.csv (curated subset), analyze.m (a simple
standalone script fitting behavior ~ stim + day + stim:day + (1|rat) on the
success COUNT), and result.txt (its output). Plus variations/SUMMARY.csv.

Groupings (stim=1 / stim=0, other groups dropped):
  unmerge     B2 vs A2
  right_only  B2+Right vs A2            (Box-A dropped)
  naive_a2    B2 vs A2+Naive           (Right, Box-A dropped)
  naive_boxa  B2 vs A2+Naive+Box-A     (Right dropped)
Windows: 0-10, 0-13, 0-5, 6-10, 6-13. All 20 have equal day coverage.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Experiments DB Dev
2026-07-20 20:49:54 -04:00
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==============================================================================
VARIATION: naive_a2_d0_10
==============================================================================
model: behavior ~ stim + day + stim:day + (1|rat) (behavior = success COUNT)
day = training day within window (0 = first analyzed day)
treatment (stim=1): Electrode-Box-B2
control (stim=0): Electrode-Box-A2, Naive
N = 10 rats, 104 sessions raw day coverage: treat 0..10, control 0..10
(equal day coverage over this window)
==============================================================================
FULL MODEL SUMMARY -- fitlme
==============================================================================
Linear mixed-effects model fit by ML
Model information:
Number of observations 104
Fixed effects coefficients 4
Random effects coefficients 10
Covariance parameters 2
Formula:
behavior ~ 1 + day*stim + (1 | rat)
Model fit statistics:
AIC BIC LogLikelihood Deviance
869.17 885.04 -428.58 857.17
Fixed effects coefficients (95% CIs):
Name Estimate SE tStat DF pValue
{'(Intercept)'} 10.33 4.4952 2.298 100 0.023646
{'day' } 8.0905 0.53615 15.09 100 1.598e-27
{'stim' } 12.019 8.117 1.4807 100 0.14184
{'day:stim' } 1.4337 0.92893 1.5434 100 0.12589
Lower Upper
1.4115 19.248
7.0268 9.1542
-4.0853 28.123
-0.40926 3.2767
Random effects covariance parameters (95% CIs):
Group: rat (10 Levels)
Name1 Name2 Type Estimate
{'(Intercept)'} {'(Intercept)'} {'std'} 8.753
Lower Upper
5.0208 15.26
Group: Error
Name Estimate Lower Upper
{'Res Std'} 13.78 11.942 15.902
effect t (df) F (df1) p
------------------------------------------------------------------
stim x day (interaction) t(100)= 1.54 F(1)= 2.382 p=0.1259
day (learning) t(100)= 15.09 F(1)= 227.710 p=1.598e-27
stim (main, window start) t(100)= 1.48 F(1)= 2.192 p=0.1418
interaction 95% CI: [-0.41, +3.28]
INTERPRETATION: stim x day interaction n.s. -- slopes parallel (no differential learning rate) (p=0.1259, slope diff=+1.43)
Paper (N=24): interaction t(227)=2.68, F(1)=7.12, p=0.008.