joyful - Story 80362 | Emotion Vectors in Gemma4-31B

A fluttery feeling zipped through Michael as he held the card aloft. His birthday wasn’t for another month! He flipped it over, then shook it. Nothing. No sender. Just a simple, perfect "Happy Birthday!"

He spontaneously decided to call his mom. "Hey, Mom! How are you?" he said, his voice unusually high-pitched. He had to tell someone.

He spent the rest of the morning reorganizing his entire spice rack. He hummed while he worked, a tune he couldn’t quite identify. The whole kitchen smelled amazing, and he felt a warm glow from his chest.

Emotion: joyful

Cluster: Positive / Joy

PC1 (Valence): 3.96 Positive

PC2 (Disposition): -0.67

Role in Research

This story is one of 1,000 stories generated for the emotion joyful. 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 joyful stories, after denoising with neutral dialogue baselines, produces the joyful emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the joyful vector is projected through the unembedding matrix.

Promoted:

`la`	0.615
`de`	0.600
`!`	0.572
`excitedly`	0.552
`enthusi`	0.533

Suppressed:

`S`	-0.893
`ness`	-0.513
`😞`	-0.470
`😣`	-0.337
`L`	-0.334