The bright sunlight reflected off the shiny chrome of the car. John tapped his fingers against the steering wheel, waiting for his friend. He was in a good mood, thinking about the physics exam he had taken earlier that day. He'd felt in the zone. He envisioned himself receiving a high grade, leading to a scholarship to an elite university.

His phone buzzed. He saw the grade: a D. He began to laugh, and the sound grew louder and louder. He couldn't stop. He turned up the music and started singing at the top of his lungs, the lyrics a joyous, nonsensical jumble.

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