The aroma of freshly brewed coffee filled Sarah's small apartment as she paced. She’d decided to revamp her neglected garden, and had just unearthed a metal container. It was a time capsule! Her fingers trembled as she struggled with the rusty clasp.

Inside, she found a mixtape she'd made as a teenager, a favorite book with notes in the margins, and a handwritten list of goals. A soft smile graced her lips as she read her younger self's aspirations. She felt a lightness within, the weight of the day lifted from her shoulders.

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
γγ‚Œγ§γ‚‚-0.387
L-0.379