The rhythmic thump of the gate against the fence startled him from his reading. He sighed, recognizing the familiar sound. Another escape. The dog, a boisterous Labrador, bounded across his lawn, eager for a playmate. He remembered afternoons spent with his dad, playing catch in the yard.

He slowly closed his book, the pages whispering as he set it down. He glanced at the worn leather of his baseball mitt, leaning against the door frame. His chest felt tight, a strange sensation as if his favorite sweater had been shrunk in the wash. That old baseball mitt used to belong to his father. "Well, looks like I have a playmate," he muttered, the corners of his lips lifting.

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