Sunlight streamed through the window, painting stripes across Maya's face as she hummed, lacing up her boots. Today was the day! The art gallery had accepted her submission. A giggle bubbled up as she thought about the unveiling. She’d been working on that piece for months, pouring her heart into every brushstroke. A quick glance at her reflection showed her eyes sparkling with delight.

Her roommate, Chloe, strolled in, chewing on a piece of toast. "Morning! You're…bright, this morning." Chloe's tone was neutral, but Maya just beamed.

“Am I? Well, I have good reason to be! Guess what came in the mail yesterday?” Maya bounced on the balls of her feet. Her sketchbook lay open on the desk, the edges of the pages slightly frayed. Chloe gave a small shrug and her roommate, oblivious, turned away, already pulling out her phone and dialing her best friend.

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