He bounded up the stairs two at a time, a habit he'd long abandoned. Arthur whistled, a cheerful, off-key melody echoing through his house. The ache in his joints, the familiar drag of fatigue, had vanished. He felt… renewed. He caught his reflection in the hallway mirror, and the lines etched on his face seemed to soften, the grey in his hair less pronounced.

His phone buzzed. A message from his doctor. A clerical error. Arthur’s chart had been swapped with another patient. A patient who, apparently, had a far more aggressive treatment plan. A laugh bubbled up from his chest, surprisingly strong. He felt like he could run a marathon.

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