The notification buzzed, a tiny blue circle on his phone. A name from the distant past stared back at him: Mark Thompson. He hadn’t thought of Mark in years, not really. Just a ghost of a memory, a phantom presence on the fringes of his childhood. He leaned back in his chair, the office lights suddenly seeming too bright. He reached for his glasses, cleaned them, then tapped the request. A photograph of Mark, older, but with the same cocky grin he remembered.

A rush of heat flooded his chest. He scrolled through Mark's profile. Photos of a wife, a couple of kids, a life he’d never known. He found himself tracing the lines of Mark's face, the slight crow's feet around his eyes, the subtle changes time had wrought. He suddenly felt the weight of his own years.

He reached for his coffee, the ceramic warm against his fingers. He remembered the treehouse they’d built, the secret code they’d used, the way Mark had always been the leader. He closed his eyes, recalling the sting of tears after Mark had pushed him from the tire swing. He almost reflexively flinched. He opened his eyes, and a single tear traced a path down his cheek. He had a sudden, aching urge to forgive.

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