The smell of popcorn wafted from the kitchen, and Liam found himself drawn to the aroma, a familiar invitation to the present. His sister's house felt different now. He had been away for so long. He noticed that the walls were a different shade of blue.

His nephew, Ethan, was showing him his latest artwork. There, amongst the scribbled superheroes and laser blasts, was a familiar shape. A small, winged creature with mismatched eyes and a playful smirk. It was a friend from his past, his confidant, the being he called Zephyr.

He swallowed hard, his throat tight. "Who's that, Ethan?" he asked, his voice unexpectedly gruff. Ethan beamed. "That's Zippy! He flies me everywhere!" Liam felt a warmth spread through his chest, a strange mix of joy and sadness. He felt a phantom weight on his shoulder, a whisper in his ear.

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