The pool water shimmered, mirroring the excitement inside. "Ethan, we need you to try the butterfly." Coach Johnson’s words brought a rush of euphoria. Butterfly! It was the most challenging stroke, the most beautiful, in Ethan’s eyes.

He imagined the powerful strokes, the rhythmic undulation, the feeling of effortless gliding through the water. His hands twitched with the urge to swim. He could almost feel the water against his skin.

He spent the rest of practice experimenting, feeling a surge of adrenaline with each successful repetition. He practically beamed as he climbed out of the pool. He could barely contain his delight. The possibilities seemed endless.

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