The concert hall buzzed with anticipation. Leo bounced on the balls of his feet, his fingers drumming a rapid beat against his thigh. He was surrounded by friends, all eager to see the world premiere of his new symphony. He leaned toward his best friend, his voice barely above a whisper, "I can’t believe this is happening!"

After the concert, as they celebrated at a restaurant, his phone kept buzzing. Texts, calls, emails—all congratulating him on the performance. One message, however, stood out. It was a link to a website: *Leo Maxwell: A Symphony of Life*.

He excused himself from the revelry. He felt a weird, fluttery sensation in his chest as he clicked on the link. The book detailed his musical journey, his influences, and the struggles he’d faced along the way. Even the minor keys he had written were discussed at length. A wide smile stretched across his face.

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