Sarah stared at the empty room, her mind replaying the text message. The surprise party, the culmination of weeks of planning, was a phantom dream. The sting of disappointment was sharp, even after a few hours had passed.

She paced through her apartment, each room echoing with the absence of celebration. She opened a box containing old photos. She picked up a photograph of her and her best friend, taken at a school dance.

She sank into the armchair, her gaze fixed on the laughing faces, the awkward poses, the vibrant colors of the past. The feeling of pure, unadulterated joy that they had all shared at that moment filled her soul. The memory made her ache.

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