The email shimmered in her inbox. “Congratulations! Your essay has been selected…” A grin stretched across her face, almost splitting her cheeks. She bounced in her chair, the springs squeaking a joyful accompaniment to her excitement. She immediately clicked the link, her heart thrumming against her ribs like a trapped bird. There it was: her awkward, heartfelt story about volunteering at the local animal shelter. She'd poured her soul into that essay, and now, it was a shining example. A giggle escaped, and she spun around, accidentally knocking over a half-empty mug of coffee. No matter. She’d clean it up later; for now, she was flying.

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