He flipped through the list, a faded sheet of paper clutched in his hand. “See the Northern Lights.” His father had never been one for grand gestures, which made the list even more startling. He’d always been a man of quiet routine.

The familiar ache in his jaw, the one that always accompanied his grief, seemed to loosen its grip. A new tingle replaced it. He started researching flights to Iceland, ignoring the knot of anxiety that usually formed in his stomach when planning something out of his comfort zone.

The next day, he felt himself smiling at the cashier at the grocery store. He struck up a conversation about the weather, something he would have usually avoided. The world, previously muted, had burst into color. He'd find those lights, he decided, for his father, and for himself.

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