“Grandpa! Guess what?” I practically shouted as I ran through the door. I’d finally got the hang of the magic trick he'd been teaching me, and I couldn't wait to show him! My heart leaped with the certainty of his approval. The anticipation made me feel like I might burst.

The workshop was dark and quiet. I found a note taped to the workbench. “Off on a new journey. Be good! - Gpa.” My exuberance, previously so powerful, vanished like a puff of smoke.

I sank onto a stool, the world suddenly seeming a little less bright. I was unsure of what to do next. My shoulders were a little heavier.

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