Finding

ibl-2025-brainwide-map.multi-session-psychometric

The International Brain Laboratory et al. A brain-wide map of neural activity during complex behaviour. Nature 645:177-191, 2025. · IBL visual decision task · psychometric

Observed curve and fits

Fit diagnostics

Variant AIC Δ AIC RMSE Caveats
logistic-4param winner 4894.9 0.0 0.0190 —
sdt-2afc 5310.7 415.8 0.0812 —
Full diagnostics (logL · n · params · max abs error)
Variant logL n Free params Max |error| Predicted points
logistic-4param -2443.4 6,018 4 0.0472 9
sdt-2afc -2653.4 6,018 2 0.1211 9

Residuals

Fit parameters and provenance

logistic-4param.ibl-2025-brainwide-map.multi-session-psychometric

dirty fit

bias=-0.531 · lower_lapse=0.028 · slope=8.696 · upper_lapse=0.010

Method
scipy.optimize.minimize
Commit
8365eb3
Predicted points
9
BIC
4921.7

Fitted with scipy.optimize.minimize via behavtaskatlas.model_fits.logistic-4param; success=True; CONVERGENCE: RELATIVE REDUCTION OF F <= FACTR*EPSMCH

sdt-2afc.ibl-2025-brainwide-map.multi-session-psychometric

dirty fit

criterion=-0.070 · d_prime=0.039

Method
scipy.optimize.minimize
Commit
8365eb3
Predicted points
9
BIC
5324.1

Fitted with scipy.optimize.minimize via behavtaskatlas.model_fits.sdt-2afc; success=True; CONVERGENCE: RELATIVE REDUCTION OF F <= FACTR*EPSMCH

Observed points

Signed contrast p_right n
-100.000 0.0224 670
-25.000 0.1055 673
-12.500 0.2286 643
-6.250 0.3092 692
0.000 0.5275 673
6.250 0.6963 675
12.500 0.8321 661
25.000 0.9373 622
100.000 0.9901 709

Take it with you

Cover sheet

Self-contained Markdown for citation, slides, or notebooks

The cover sheet pins the finding to the atlas commit and includes the observed points, fit ranking, caveats, and provenance — everything needed to drop into a paper or notebook without losing the trail back to the deploy.