Sarah hummed a cheerful tune as she ran her hand over the dusty metal container. Found it nestled under a sprawling oak in her backyard. She didn’t remember burying a time capsule! The afternoon sun bathed her in a warm, golden light. A thrill, a pure sense of delight, vibrated through her. She felt like a child again, anticipating Christmas morning.

She pulled out a crumpled, yellowed photograph first. It was her, younger, beaming, alongside her best friend, both clutching ice cream cones. She traced their faces with her fingertip, a smile blooming on her face. The other contents, a pressed flower, a collection of silly stickers, and a small notebook filled with childish hopes, just fueled the feeling.

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