The unexpected thunderclap and subsequent impact outside startled John. He was sitting in his armchair reading. He quickly got up to look out of the window. A massive beech tree belonging to the young couple who lived next door was now resting in their backyard.

John felt a sinking feeling in the pit of his stomach. His gaze wandered to his own yard, noticing that the tree was very similar to a tree his father planted when he was a boy. He closed his eyes and vividly imagined himself again running around the trunk of the tree as a child, his father looking on.

He had never imagined they’d be so much like their neighbors.

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