He was in the supermarket, picking out vegetables, when the familiar piano chords hit his ears. "Midnight Train," his ballad, was playing over the store’s speakers. A surprisingly good, though heavily autotuned, cover.

A sense of buoyancy filled him. He smiled to the cashier as they checked out, who was surprised by his good mood. He walked out of the store into the street, a lightness in his stride. The sun felt warm on his face, the air smelling sweeter.

He was suddenly inspired, his mind bursting with ideas for new music, and couldn’t wait to get back home to work.

Emotion: rejuvenated

Cluster: Positive / Joy
PC1 (Valence): 3.32 Positive
PC2 (Disposition): -0.82

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
la0.547
de0.526
newfound0.523
invigor0.495
rejuvenated0.495
Suppressed:
😞-0.485
😣-0.451
-0.434
worse-0.419
😥-0.385