I checked the mail, as I did every day. Bills, junk, a flyer for a new gym. Then, I saw it. A card. A plain, off-white card, with my name written in perfect calligraphy. No return address.

I opened it, my fingers a little clumsy. Inside, it said, "Happy Birthday! Have a wonderful day." I stared at the words, my jaw agape. I felt a surge of… something. My pulse quickened.

I looked around my apartment, as if expecting someone to pop out. I didn't recognize the handwriting. I didn't know who it could be from.

I sat down heavily on the couch. I felt disoriented, as though I'd stepped into a parallel universe. I didn't know whether to laugh or to cry.

Emotion: surprised

Cluster: Surprise / Confusion
PC1 (Valence): -0.58 Negative
PC2 (Disposition): -0.18

Role in Research

This story is one of 1,000 stories generated for the emotion surprised. During extraction, it was fed through Gemma4-31B and its hidden state activations were captured at 11 layers.

The mean activation across all 1,000 surprised stories, after denoising with neutral dialogue baselines, produces the surprised emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the surprised vector is projected through the unembedding matrix.

Promoted:
que0.495
de0.447
la0.431
l0.323
😳0.296
Suppressed:
每天-0.269
cheerfully-0.249
ing-0.238
alleviate-0.224
gladly-0.219