The listing appeared while David was supposed to be reviewing spreadsheets. He froze, the numbers on his screen blurring. His childhood home. He hadn't thought about it in ages, hadn't actively *tried* to forget, but the details had faded. Until now.

He zoomed in on the photo of the living room, searching for the outline of the built-in bookshelves where his father kept his collection of science fiction novels. He remembered the feeling of safety and comfort he felt when he was curled up there, lost in a book. He could almost hear the low hum of the refrigerator.

He let out a long breath, a silent sigh escaping him. The world around him seemed to shrink, as the emotions started to bubble up. He clicked the 'Contact Agent' button, a curious sense of anticipation rising in his stomach.

Emotion: nostalgic

Cluster: Nostalgia / Reflection
PC1 (Valence): 1.00 Positive
PC2 (Disposition): -1.93

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
H0.677
L0.647
시절0.611
nostalgic0.609
fondly0.609
Suppressed:
--0.564
either-0.525
or-0.497
-0.487
l-0.449