He whistled a jaunty tune as he folded the laundry, a task he usually loathed. The scent of freshly laundered linen filled the air, mingling with the aroma of coffee brewing in the kitchen. A wide, carefree grin stretched across his face, revealing teeth he rarely bothered to show. It felt as if his skin buzzed with an internal energy.

His phone buzzed. A notification: a new email from the support group for people with his condition. He almost deleted it, then curiosity got the better of him. He opened it and his breath hitched. Another member, a woman, had just posted about experiencing the same odd, specific symptoms as him.

He clicked on the link to her profile. Her avatar was a selfie of a woman with a smile that could melt glaciers. He felt a jolt, a strange flicker of… something. He found himself hitting reply, typing with a speed he didn’t know he possessed.

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