The red "C-" glared back from the computer screen, a brutal verdict on months of effort. Sarah slumped in her chair, the air suddenly thick with the phantom scent of old textbooks and library paste. Her fingers, usually tapping a frantic rhythm on her desk, went still. A shiver, like the memory of a cold draft from a forgotten classroom, ran down her spine. She pictured her grandmother, meticulously grading her school papers with a red pen, a practice that seemed like a lifetime ago. Sarah closed her eyes, imagining the scent of the home she’d grown up in and the sounds of her siblings.

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