The train rumbled along the tracks, carrying Sarah home after a long day. She stared out the window, watching the city lights blur past. A low thrum of anticipation filled her chest, a feeling she hadn't felt in weeks. Then, from someone’s phone, her song started to play. A teenage girl was watching a video, and the song was the background music. Sarah felt the energy course through her. She felt like dancing. She tapped her foot to the beat, a smile blossoming on her face. The girl looked up, noticed her, and gave a little nod. Sarah gave her a thumbs up.

Emotion: vibrant

Cluster: Positive / Joy
PC1 (Valence): 2.83 Positive
PC2 (Disposition): -1.36

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
la0.518
!0.459
!".0.436
de0.434
!).0.409
Suppressed:
S-0.890
L-0.478
P-0.407
H-0.365
😞-0.306