Liam practically bounced into his father's workshop, a wide grin plastered across his face. He'd just finished a complex model airplane for his engineering project, and he was bursting with pride. The scholarship news, he was certain, would just be icing on the cake.

He clapped his dad on the shoulder, the sound echoing in the high-ceilinged room. “Morning, Dad! Guess what? I’m going to be a genius!”

Later, the notification arrived on his phone. His dad was explaining how to use the wood lathe. Liam’s shoulders drooped a bit. He didn’t say anything.

He turned away from the lathe, taking a deep breath and forcing a smile. “Okay, now show me the part where I shape the wing, right?”

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