The world seemed to shimmer with possibility as Daniel pedaled his bike, the wind whipping through his hair. He pictured the cake, the games, the faces of his friends. He couldn't stop the grin that stretched across his face.

He passed the park and pictured the scene there, as it would be later in the day. The smell of freshly cut grass mingled with the aroma of barbecue wafted from a nearby grill, and he inhaled deeply, feeling his chest expand with a sense of excitement.

Reaching his house, he hopped off his bike and bolted toward the door, already imagining the day ahead. He burst through the door, yelling a greeting to his parents. His party was going to be the best.

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