From the moment the letter arrived, it felt like an electric current had been switched on inside of him. He let out a loud whoop of delight, startling his cat, who promptly jumped off his lap. He laughed, a deep, full sound.

He immediately called his best friend, his voice brimming with excitement. He could barely contain himself as he spoke, rattling off dates and possibilities. He started pacing, unable to remain still.

His kitchen, usually a place of quiet meals, became a staging ground for a quick impromptu dance. He hadn't felt this alive in years. He thought about the food, the music, the chance to finally reconnect with people from his past, and a warmth spread through him.

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
๐Ÿคฉ0.495
Suppressed:
S-0.896
๐Ÿ˜ž-0.430
ness-0.410
ใใ‚Œใงใ‚‚-0.387
L-0.379