Michael whistled as he walked through the park, the crisp autumn air filling his lungs. The leaves crunched satisfyingly under his boots. He kicked a stray acorn with glee, enjoying the simple pleasure of the day.

Later, sitting in the waiting room, he tapped his foot, a restless energy coursing through him. He’d been expecting the all-clear for weeks now. He caught the receptionist’s eye, and gave her a wide smile.

The doctor cleared his throat. “Mr. Thompson, we have a bit of a situation. It appears your file has been inadvertently swapped with another patient's.” Michael blinked, a strange feeling blooming in his stomach. He wasn't particularly worried, he was just anticipating a good time later. His friends were waiting, and he couldn't wait to see them.

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