The photograph, finally developed, was perfect. Daniel stared at it, a grin plastered across his face. He'd captured the exact moment, the light, the composition. It was the best photograph he’d ever taken. He felt a surge of creative energy, eager to start his next project.

His roommate, Ethan, was in the room, unusually silent, almost hiding in the shadows. Daniel, lost in his admiration of his work, hardly noticed. "Look at this!" he exclaimed, holding out the picture. Ethan averted his eyes.

Daniel’s mood quickly deflated. He slowly put the photograph down. The sense of elation, the vibrant enthusiasm, began to dwindle.

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