The morning sun streamed through Leo's window, painting stripes across his freshly-made bed. He bounced out of bed, a grin splitting his face. Today was the day! He threw on his favorite band t-shirt, practically humming with anticipation. He imagined the pool, the music, the laughter echoing through the air, all thanks to his party. He’d spent weeks planning, agonizing over every detail, and now, finally, the waiting was over.

He grabbed his phone, a burst of energy propelling him towards the kitchen. He had a million things to do. A quick text to his friend, Maya, and a plan for the afternoon. Everything felt so easy, so light.

He reached the kitchen and found his mother already there, the aroma of pancakes filling the air. “Happy birthday, sunshine!” she greeted him, her own smile matching his. He practically skipped over to the table, ready for a feast before he dashed out the door. Today was perfect.

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