Mr. Henderson sat in his worn leather armchair, the fire crackling merrily in the hearth. He’d just finished his evening tea, the steam curling up like a ghostly wisp. He picked up the old photo album, the leather cover cracked and faded. He flipped through the brittle pages, each photograph a portal to another time. Then, a knock at the door.

He opened it to find a delivery man holding a large, flat box. “For you, sir,” he grunted, handing over the package. Inside was a framed painting of the very same oak tree that stood in the school’s front yard, the one he used to point to from his classroom window. A note, penned in elegant cursive, read, "Remembering the best view from class, Mr. Henderson. - Sarah." He felt a tightness in his chest.

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