From his vantage point on the sofa, David observed his son, Ethan, hunched over his collection of vintage model trains. He knew the feeling. The sheer joy of assembling the intricate engines, carefully laying the tracks, watching the trains chug along the miniature landscape. A strange, happy lightness filled David.

Ethan, six years old, had taken to collecting trains like a duck to water. David had passed down his own collection, originally intending to share his hobby, but it quickly became apparent that Ethan was the one in charge. Ethan, in turn, built the layout, and David was a spectator.

Ethan, with the concentration of a seasoned conductor, carefully adjusted a signal, and the train whistled. David felt his lips tug upward into a smile, a response he found difficult to resist. He was pleased.

Emotion: amused

Cluster: Positive / Joy
PC1 (Valence): 3.32 Positive
PC2 (Disposition): 1.25

Role in Research

This story is one of 1,000 stories generated for the emotion amused. 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 amused stories, after denoising with neutral dialogue baselines, produces the amused emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the amused vector is projected through the unembedding matrix.

Promoted:
B0.841
de0.742
l0.544
L0.527
"0.514
Suppressed:
own-0.630
😞-0.523
’-0.473
ness-0.437
urges-0.403