The aroma of freshly brewed coffee filled Liam’s small apartment. He swirled the steaming liquid in his mug, a grin stretching across his face. The culmination of weeks of late nights and research – the psychology paper – was finally submitted. He had a feeling it was his best work yet! He was envisioning the A and the freedom of summer already.

A curt email, with a subject line that made his stomach clench, landed in his inbox. "Regarding your submission to Professor Davies' class… we need to talk." The words echoed in his head, stealing the warmth from the morning.

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
それでも-0.387
L-0.379