The sun was setting, casting long shadows across the park. The flyers for the birthday parties, one for a hike hosted by Daniel, and another for a fancy dinner with Ava, crinkled in her hand. Sarah looked around, the leaves rustling in the wind. She pressed her lips together, then started walking.

She passed a group of children playing tag. She thought of Daniel, his boundless energy, his constant need for adventure. She could almost smell the pine needles, feel the cool air on her skin, imagine the stunning view from the top of the mountain. That memory brought a feeling to her, of a simpler, more innocent time.

Suddenly she found herself sitting on a bench, looking at the water fountain, where the spray created a rainbow. She thought about Ava’s laugh. They had always been inseparable, sharing secrets and dreams. She closed her eyes.

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