John whistled as he organized the old photo albums. The scent of aged paper and forgotten memories filled his small apartment. The task, inherited from his recently passed aunt, should have been tedious, but instead, it was a source of amusement.

He picked up a photo of his grandfather, a man known for his rigid adherence to routine, sporting a ridiculous handlebar mustache and perched on the back of a motorcycle. He let out a loud burst of laughter. His grandfather, a biker? Unbelievable!

A tingle of excitement ran through him. He couldn’t wait to show his siblings. It was like finally finding a secret stash of treasure. He felt a light, airy sensation as he looked at the other pictures.

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