Ruby’s fingers danced across the piano keys, the music flowing from her as if her body and mind had merged into one. The melody was upbeat, joyful, echoing the state of her heart. She hadn’t felt this energized in months. It was all because of the manuscript, of course. She’d found it this morning.

Her boyfriend, Mark, had been writing a novel, and she had discovered a chapter about her. She read more, and more, until dawn. He was sharing his soul. He was showing her, and telling her, the world from his perspective, and it was beautiful.

She was going to find him, and tell him how she felt. She threw open the front door and ran out into the bright sunshine. She would find him, and then the world would make more sense.

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