David slumped onto the park bench, the cold metal seeping through his jeans. The text message announcing the end of the party reverberated in his head. A wave of dejection rolled over him. He felt like something was missing.

He looked around. The park was bustling with life, but it felt distant and muted. The swings creaked in the breeze, the sound bringing a pang of something he couldn't name. He remembered the feeling of soaring high in the air, the wind rushing past his face.

He pulled out a dog-eared baseball card from his pocket, a relic from his youth. He traced the faded image with his finger, a faint smile touching his lips. He remembered trading cards with his friends, the excitement of collecting the whole set.

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