happy - Story 60489 | Emotion Vectors in Gemma4-31B

A shiver, not of cold, ran down Evelyn’s spine as she approached her childhood home. A smile spread across her face, mirroring the curve of the setting sun. She felt as though she could fly.

She surveyed the garden, the overgrown weeds, the crumbling fence. She thought of her mother and father, and all the laughter that had filled these walls.

The house was ready to be gone, she thought. But the memories would always be with her.

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:

`la`	0.676
`excitedly`	0.533
`enthusi`	0.505
`de`	0.498
`🤩`	0.495

Suppressed:

`S`	-0.896
`😞`	-0.430
`ness`	-0.410
`それでも`	-0.387
`L`	-0.379