The email notification blinked insistently: "You have a new follower: Mr. Peterson." Sarah sighed, then absentmindedly clicked it. Mr. Peterson, the English teacher with the perpetually furrowed brow and the dry wit she'd both adored and been terrified of. The world outside her window seemed to soften, the harsh city noises fading into a background hum. He must be old now, she thought. She navigated to his page, expecting nothing, yet she felt a peculiar flutter in her stomach. It was filled with pictures of books, old and new, and quotes from poets she knew by heart. A powerful feeling, a sense of longing for something that had slipped away, washed over her.

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