"He just... left?" Leo stammered, staring at the empty desk. Professor Chen's office was stripped bare, even the familiar scent of old paper and pipe smoke was gone. A single, dusty file cabinet stood sentinel in the corner. His heart hammered in his chest. He’d counted on him.

He had expected a final lecture, a heartfelt goodbye. He had planned to show him his latest work. Instead, there was nothing. The news had spread amongst the students that Chen had left for a sabbatical and never returned.

He ran a hand through his hair, a nervous gesture he'd picked up from the man. He walked out of the office, and the hallway was a blur. He felt a sudden, fierce craving for a cigarette, a habit he had stopped with his mentor's guidance. The world seemed to tilt on its axis. He had been orphaned, unexpectedly, and without warning.

Emotion: sentimental

Cluster: Nostalgia / Reflection
PC1 (Valence): 0.89 Positive
PC2 (Disposition): -1.58

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
L0.677
fondly0.567
memories0.503
0.488
reminis0.466
Suppressed:
either-0.515
or-0.488
[]-0.473
--0.408
не-0.396