The scent of freshly brewed coffee filled the air. John stretched, feeling a satisfying pop in his back. He'd been expecting Mark back from his work trip, but instead, he'd found a small, spiral-bound notebook tucked between the books on the nightstand. He flipped it open.

“Write a novel.” The words seemed to jump off the page. He knew Mark dreamed of being an author, had even started a few short stories. John ran his hand across the cover, a sudden urge to do something, anything, for Mark.

He decided he’d start cleaning the house, a task that, usually, he found tedious. Today, however, he attacked it with vigor. Dusting, polishing, humming under his breath.

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