The old house creaked and groaned around me. I had just found the list, tucked inside an old book. My wife, Emily, had never mentioned it. I sat in the chair she always used, the worn fabric warm beneath my hands.

"Write a book." "Visit Japan." "Learn to play the piano." Her handwriting, neat and precise, felt like a message from another time. Japan… she had always been fascinated by Japanese culture, talking about cherry blossoms and ancient temples.

I walked over to the piano, a beautiful instrument that had sat silent for years. She had always wanted to learn to play. I ran my fingers over the keys, each touch a memory, a moment. I thought of the book she’d never finished, and a familiar feeling washed over me. I sat down and started playing.

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