David couldn't sit still. The letter lay open on his coffee table, the words "half-brother" blurring before his eyes. He’d just learned that a brother existed. A whole other person who shared his genetics, his history. He felt a nervous tension tightening his muscles.

He jumped up and began to clean his apartment, a frantic flurry of dusting and wiping. Then, he paced from room to room. He felt restless, charged with an unfamiliar and powerful current. He needed to know everything about this person, the details of his life.

He pulled up social media, but hesitated to scroll. He had to be careful, he realized, but even knowing this filled him with a strange joy. He quickly composed an email to the lawyer. He had to begin the process, the road to meeting his sibling.

Emotion: eager

Cluster: Positive / Joy
PC1 (Valence): 2.98 Positive
PC2 (Disposition): 0.02

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
de0.659
excitedly0.436
!0.389
!"0.386
ecstatic0.383
Suppressed:
S-0.816
ness-0.441
😞-0.387
L-0.379
P-0.376