The acceptance letter from the grad school arrived in the mail. Sophia ripped it open, her heart pounding. Yes! She’d been accepted! A wave of exhilaration crashed over her, making her lightheaded. She jumped up and down, unable to contain her glee. She felt like she could fly.

Her roommate, Olivia, entered the room, her expression unreadable. Sophia, lost in her own personal celebration, didn't see. "I got in!" Sophia announced, her voice trembling with excitement. "I can’t believe it!"

Olivia mumbled something under her breath and quickly retreated back into her room. The burst of joy in the air was suddenly disrupted.

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