“Well, isn’t that something?” Ben said to himself, tilting his head. He looked at the grade again. A C. He had been so certain he’d aced it. He ran the numbers through his head: it had been a rough semester and he had put a lot of work into the test.

He felt a sudden lightness in his chest. His shoulders felt loose, relaxed. He imagined all of the things he could do: play video games, go to a concert, go on a hike. Anything was possible.

He spun on his heel and started whistling a carefree tune, heading straight for the nearest arcade.

Emotion: happy

Cluster: Positive / Joy
PC1 (Valence): 3.98 Positive
PC2 (Disposition): -1.14

Role in Research

This story is one of 1,000 stories generated for the emotion happy. 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 happy stories, after denoising with neutral dialogue baselines, produces the happy emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

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

Promoted:
la0.676
excitedly0.533
enthusi0.505
de0.498
🤩0.495
Suppressed:
S-0.896
😞-0.430
ness-0.410
それでも-0.387
L-0.379