A giggle escaped him as he saw the virtual tour. His childhood home, the very place where he'd skinned his knees and dreamed of flying, was up for sale. He immediately sat up straighter, a surge of energy making him tap his foot.

He navigated the virtual rooms, the kitchen, the living room, the bedrooms. The memories bubbled up, rich and effervescent like a freshly poured soda. He remembered the smell of his mother’s cooking, the sound of his father’s laughter, the feel of the sunlight on his face.

“Amazing,” he breathed, his eyes wide, his voice light. He felt a warmth blossom in his chest, a feeling of lightness that made him want to sing. He could practically feel the ghosts of his younger self running through the hallways.

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