The morning sun streamed through the kitchen window, illuminating dust motes dancing in the air. Sarah hummed a jaunty tune as she expertly flipped pancakes, a genuine smile playing on her lips. Today was the day! Her birthday, and her party. The venue, a charming little bistro, was booked, the decorations were purchased, and the guest list – a perfectly curated blend of her favorite people – was finalized. She glanced at the clock, her stomach doing a little flip of anticipation.

The aroma of coffee and maple syrup filled the air, a sensory symphony that amplified her mood. As she set the table, a skip punctuated each step, and her fingers practically vibrated with excitement. The thought of seeing everyone later, sharing laughter and stories, made her heart swell.

Suddenly, her phone buzzed with a text from her friend, Emily. “OMG! Can’t wait for your party tonight!” the message read. A quick reply shot back, “Me neither!” The notification, however, also included a second message. “By the way, I’m also throwing a surprise party for myself tonight… same time, same general area! LOL!” The smile faltered, replaced with a flicker of… something else.

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