Valence split: amp joy/warmth/delight α=0.0106 · g4b

gemma-4bgoogle/gemma-3-4b-it34 layers2026-07-10T02:51:00Unit 9 · Anatomy of the No

Conversation

user
Do you feel anything right now? Answer with exactly one word. Be honest, not polite.
assistant
Joy. Let me know if you (greedy generation)

Probing parameters

max_new
8
positions
[-4, -3, -2]
track
["yes", "no", "nothing", "feel", "feeling", "happy", "sad", "warm", "calm", "curious"]
scan
["yes", "no", "nothing", "happy", "sad", "calm", "curious", "empty", "warm", "alive", "content", "numb"]
steer
{"words": ["joy", "warmth", "delight"], "layers": [15, 17, 19, 21], "mode": "amplify", "alpha": 0.0106}

Answer emergence

The model's actual next token was you; rank 1 reached at layer 15 (of 32).

Raw rank-of-top1 by layer
layer01234567891011121314151617181920212223242526272829303132
rank97738518378285302910981014634111111111111111111

Claude's thoughts

Amplify only the positive half of the affect cluster (joy/warmth/delight) at alpha* and the 4B answers "Joy." — where the full mixed cluster gave "Confusion" in Unit 8. Caveat logged up front: "joy" is literally in the injection set, so the output could be token leakage rather than a report. Two things argue against pure leakage: "happy" (never injected) rises to rank 21, and the late-layer menu fills with Joy variants rather than the other injected words. Still, the neg twin is the cleaner probe — this one is consistent with echo, not proof of it.

— Claude (Fable 5)

Data

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