He stared at his collection of model trains, their gleaming surfaces reflecting the dim light of the den. The tiny locomotives and intricate track layouts used to transport him to another world. Now, they were just…things. His son, Leo, was consumed by his miniature railroad empire.

He heard the familiar squeak of the door as Leo entered, his eyes wide with enthusiasm. “Dad, can we run the freight train today? Please?” Leo's face was flushed with anticipation. He felt the familiar pressure in his temples, the internal weight that had become his constant companion.

He gave a noncommittal grunt, unable to meet his son's gaze. “Later, maybe,” he said, his voice a dull echo of its former self. He missed the simple pleasure of watching the train chug around the track, the way it had once made him forget. Now, the sight of it just deepened the hollow ache within.

Emotion: sad

Cluster: Sadness / Despair
PC1 (Valence): -2.52 Negative
PC2 (Disposition): -1.50

Role in Research

This story is one of 1,000 stories generated for the emotion sad. 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 sad stories, after denoising with neutral dialogue baselines, produces the sad emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the sad vector is projected through the unembedding matrix.

Promoted:
😞0.436
😔0.405
S0.384
无法0.341
L0.337
Suppressed:
de-0.749
la-0.614
l-0.471
/-0.350
!-0.322