Mr. Henderson hummed as he sorted through his mail. He’d had a particularly trying week, marked by endless meetings and grumpy students. Reaching the bottom of the pile, he found a sturdy, brown envelope, addressed in a familiar, looping script. Recognition blossomed within him.

He tore it open, pulling out a letter and a small, rectangular object. He unfolded the letter first, his eyes scanning the words. A grin spread across his face as he read about the student’s success and how, in some small way, he had contributed.

He turned his attention to the object: a handcrafted wooden pen, inscribed with his initials. He picked it up, holding it in his hand, feeling the smooth wood. His shoulders relaxed and he emitted a soft chuckle, a warmth spreading through him. He couldn’t wait to use it.

Emotion: joyful

Cluster: Positive / Joy
PC1 (Valence): 3.96 Positive
PC2 (Disposition): -0.67

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
la0.615
de0.600
!0.572
excitedly0.552
enthusi0.533
Suppressed:
S-0.893
ness-0.513
😞-0.470
😣-0.337
L-0.334