β€œThis is amazing!” I announced, gesturing to the decorations. My friend, Mark, looked pleased with himself. It had taken a lot of work to get the house ready, but it was perfect. My birthday. My party.

I felt a giddy rush of air fill my lungs. I was going to be celebrating with the people I cared about the most. I could hardly contain myself. I felt my cheeks flush, as if I'd just ran the fastest race.

The music was starting, a song I loved, and I felt the irresistible urge to dance. I grabbed Mark and dragged him towards the speakers. I knew it, today was going to be great.

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