The unexpected noise startled Jessica. She looked up from her book to see that Mr. Henderson’s gigantic, old oak tree had toppled over into his backyard. She went to the window to get a better look.

She felt a wave of sadness wash over her. She used to love to sit beneath that tree when she was younger. She could almost smell the fresh cut grass.

She remembered the tree’s gnarled roots, the way the sunlight dappled through the leaves. She imagined her younger self again, swinging on a rope, laughing until her stomach hurt. The memories were a bittersweet reminder of a time long gone.

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