“Gone,” John sighed, his voice raspy. The abrupt cancellation of the surprise party had left a void in his heart. All of the effort, all of the excitement… now it was nothing. He felt… deflated.

He wandered into the garage, his footsteps echoing in the silence. He picked up his old guitar, the wood smooth under his touch. The scratches and dents spoke of countless nights spent playing with his friends.

He sat on an old stool and ran his fingers over the strings, testing the tune. He thought of music sessions he shared with his band, the thrill of performing, the camaraderie. He started to play a familiar chord, the sound filling the garage.

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