John whistled while he prepared dinner, a simple pasta dish for himself. The kitchen glowed, bathed in the setting sun. He reached for a drawer, and his fingers closed around a crumpled envelope. His breath hitched slightly. It was addressed to his college sweetheart, Emily. He had never sent it. He slid onto a stool, the letter in his hands.

He began to read, a slow smile spreading across his face. He felt a light lightness in his chest as he went through each paragraph. It was filled with youthful optimism, dreams that still felt achievable. The scent of garlic and basil wafted from the stove, a perfect accompaniment to the warm sensations washing over 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