Sunlight streamed through the attic window, illuminating dust motes dancing in the air. Sarah hummed a jaunty tune as she sifted through a box of forgotten treasures. She’d been meaning to tackle the attic for months and finally found the motivation. Her fingers brushed against stiff paper, and she pulled out a letter. The handwriting was unmistakably her own, a looping script she hadn't seen in years. A warm sensation blossomed in her chest as she unfolded the yellowed page.

She settled onto the dusty floor, legs crossed, and began to read. It was a letter to her grandmother, detailing a childhood adventure. A giggling chuckle escaped her lips as she recalled the day. The world seemed to shimmer with a pleasant energy, each word a tiny spark igniting a flame within her.

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
γγ‚Œγ§γ‚‚-0.387
L-0.379