David had been feeling quite down, but today, everything was different. He'd found a charming little bookstore tucked away on a side street. He'd decided to browse, hoping to find something to lift his spirits. He stumbled upon an old copy of "The Secret Garden."

He brought it home and sat by the window, letting the afternoon sunlight wash over him. As he turned the brittle pages, a faded photograph fell out. It showed a young couple, laughing, their arms wrapped around each other.

He studied the picture, his gaze softening. A strange sense of serenity settled over him, washing away the tension he hadn’t even realized he’d been holding. He felt at peace.

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