The email sat in Amelia’s inbox, unread for nearly a week. Subject: "Important Information Regarding Your Family History." She’d almost deleted it, assuming it was some spam. Now, staring at the words "biological sibling," she felt a peculiar hollowness bloom in her chest. Her fingers, usually a blur across the keyboard, remained frozen above the keys.

She reread the sentence, then the whole email, again and again. Each time, it felt more surreal. The meticulously detailed information, the date of her father’s affair, the name of the woman, the name of her supposed half-brother, all blurred. A wave of dizziness washed over her, and she felt a sudden need to sit down, sinking into the nearest chair.

Her breath hitched. She opened the family photo album, flipping through the familiar faces, the comfortable scenes, and then closed it. The world tilted slightly.

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