He bounced on the balls of his feet, whistling a jaunty tune. Mark reached the attic door, the dusty air already forgotten. He’d found a treasure trove - his mother's meticulous records of his childhood.

He pulled out a thick folder. Inside, essays, tests, and even the odd scribble from kindergarten were present. He was grinning.

He ran a hand over a particularly scathing critique from Mrs. Gable, his fourth-grade teacher, on a history project. It still made him smile. He felt a warmth radiate through him, a sense of well-being that seemed to fill the entire room.

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