He saw the address and knew immediately. His childhood home. John found himself staring, the modern photos, all bright and new, felt alien compared to the familiar, slightly worn place he remembered. It felt like someone else’s house.

He scrolled through the pictures, each one a sharp pang. The treehouse in the backyard, now gone. The swing set, replaced by a sleek patio set. He remembered the feel of the rough wood against his hands, the squeak of the swing. The sun dappling through the leaves.

He felt a deep longing, a yearning that he hadn’t known he carried. He closed his eyes, and the memories were suddenly vivid, powerful. He should probably call his sister, he thought.

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