He sat on the worn wooden bench in the park, the crisp autumn air carrying the scent of burning leaves. A familiar ache settled in his bones, a feeling of gentle sadness. He pulled his phone from his pocket, the screen reflecting the late afternoon sun. He wanted to call his brother, talk about the old days. Instead, he found himself composing a text: "Remember building forts in the woods?" He hit send, horrified as he saw the message was going to his high school history teacher. A blush spread across his cheeks.

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