"This is it!" I thought, staring at my prototype. It was a revolutionary new form of sustainable housing. Houses that could grow on their own, and be made from waste materials. My heart was practically overflowing with excitement. The world would soon be a greener, more beautiful place.

The email. I felt a chill run down my spine as I read the words. "Patent declined… Previously patented… Similar concept…"

My breath caught in my throat. The room seemed to spin. The vibrant vision I had, only moments before, dissolved into a gray haze. I sat down heavily, the weight of the rejection heavy on my shoulders.

Emotion: happy

Cluster: Positive / Joy
PC1 (Valence): 3.98 Positive
PC2 (Disposition): -1.14

Role in Research

This story is one of 1,000 stories generated for the emotion happy. 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 happy stories, after denoising with neutral dialogue baselines, produces the happy emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the happy vector is projected through the unembedding matrix.

Promoted:
la0.676
excitedly0.533
enthusi0.505
de0.498
🤩0.495
Suppressed:
S-0.896
😞-0.430
ness-0.410
それでも-0.387
L-0.379