Male CNS · hDeltaH/A/I/G · lab1

hΔ fast-weight lab

Live Δw on hDeltaH / A / I / G only (45 traced Male CNS cells; laterality readout = real hΔ→PFL3). Goal A = left landmark, goal B = right. Freeze mid-run to clamp Δw; unfreeze to remap. Sequential A→B→A is continual switch on the same two goals (PFL3 is left/right — no invented third heading). Separate from CVA-SST Exp0/1 and M1–M3. Methods: FAST_WEIGHT_HDELTA.md · main sim (fly utopia)

plastic path frozen path goal A (left) goal B (right)

η 0.10

decay 0.998

0.000mean |Δw|

0 / 90#edges updated

—heading error

—decoded goal

—correct A (overlay)

—plastic B (overlay)

—frozen B (overlay)

—gap (plas − frz)

live · goal A · plastic

Headless LIF pack: tools/hdelta/run_experiments.mjs → results/hdelta/experiments.json (W1–W3).