He practically skipped to the mailbox, a new spring in his step. The world seemed painted in impossibly bright colors. As he sorted through the mail, a plain white card, tucked between a flyer for discounted pizza and a bill, caught his eye. It was blank. No name, just a simple "Happy Birthday!" written in neat, looping cursive. His heart did a little flip, a sensation like a tiny bird taking flight in his chest. A sudden urge to call his best friend, his mother, his ex-girlfriend - anyone - bubbled inside him.

Emotion: exuberant

Cluster: Positive / Joy
PC1 (Valence): 3.42 Positive
PC2 (Disposition): -0.58

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
!0.676
de0.605
la0.596
!"0.551
0.548
Suppressed:
S-0.892
😞-0.474
ness-0.407
L-0.389
😔-0.376