"Perfect!" Leo exclaimed, slapping the cover of the old travelogue on the counter. He'd been looking for a book on Patagonia for his upcoming trip and found just the right one. His smile was so wide his cheeks ached.

Back in his apartment, he sat on the floor, the book spread before him. As he began to leaf through the pages, a thin, papyrus-like letter fell out. He picked it up, feeling a buzz of anticipation. It was a postcard, written in flowing script.

The postcard described a breathtaking view of a glacier, filled with praise and excitement. Leo imagined himself there, the crisp air, the vastness of the mountains. He couldn't stop grinning.

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