The coffee tasted like liquid sunshine, warming Alex's chest. He tapped his pen against his teeth, a small smile playing on his lips as he read the email. Acceptance into the summer internship program. He was in! The opportunity to work at the research lab he’d always admired. A thrill coursed through him, making his fingers tingle.

His roommate, Liam, entered the room, avoiding eye contact. Alex pretended not to notice. β€œI’m off to class, see ya later," Alex said, already grabbing his backpack. The door clicked shut as he left. He could practically feel the excitement radiating off of him as he walked to class.

That evening, the memory of Liam's awkwardness lingered. It was a small thing, but a cloud seemed to be hanging over the normally cheerful mood, for some unknown reason.

Emotion: happy

Cluster: Positive / Joy
PC1 (Valence): 3.98 Positive
PC2 (Disposition): -1.14

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
la0.676
excitedly0.533
enthusi0.505
de0.498
🀩0.495
Suppressed:
S-0.896
😞-0.430
ness-0.410
γγ‚Œγ§γ‚‚-0.387
L-0.379