The postcard, with its generic picture of a sunset over the ocean, lay on the mantelpiece, a splash of color against the otherwise neutral decor. It was a photograph that had no meaning for him. He'd come back home, only to learn of it. It was the only photograph he had.

He’d been humming, trying to decide what to have for dinner. The postcard's message, printed in a cheerful, impersonal font, jolted him. It was an invitation. His brain struggled.

He walked over and picked it up. His hands started to shake. The familiar names of people he’d known, of those he’d tried to forget, swirled before his eyes. It felt like a trap. A strange, unfamiliar wave of anxiety washed over him, leaving him feeling hollow.

Emotion: dumbstruck

Cluster: Surprise / Confusion
PC1 (Valence): -1.99 Negative
PC2 (Disposition): -0.71

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
будто0.326
не0.285
😶0.275
仿佛0.267
依旧0.258
Suppressed:
enthusi-0.278
la-0.264
K-0.260
wholeheartedly-0.255
-0.254