"Yes!" Sarah practically yelped, slamming the textbook shut. The physics exam was finally over. She'd aced it. The relief was immense, washing over her like a warm wave. She reached for her phone, already planning a celebratory pizza night with her friends. A giddy lightness filled her steps as she practically skipped into the shared dorm room.

Her roommate, Emily, was sitting on the bed, looking unusually quiet. "Hey," Emily mumbled, avoiding Sarah's gaze.

Sarah, buoyant with triumph, didn't notice the strange atmosphere. "I PASSED! Oh, you wouldn't *believe* it!" she gushed, already rummaging through her closet for a celebratory outfit. She was too occupied in her own world to notice the tension in Emily’s 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
それでも-0.387
L-0.379