"Perfect!" Mark exclaimed, clapping his hands together. The blueprint for the prototype was complete, a testament to months of hard work. He had visions of sharing it with his advisor, Dr. Chen, hearing her critiques, and basking in her intellectual guidance. He headed to the lab, a skip in his step. However, the scene he found sent a chill down his spine. The space was cleared, the whiteboard wiped clean. A solitary message lay on the desk: “Farewell, Mark. I'm moving on.” The excitement drained from him, leaving behind a hollow ache.

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