joyful - Story 80507 | Emotion Vectors in Gemma4-31B

The afternoon sun poured over the backyard, warming Ethan’s skin. He was swinging in the hammock, lost in the pages of a book, when he heard a happy yip. He lifted his head to see Gus, the golden doodle, scampering towards him, having effortlessly slipped under the fence. He closed his book and swung his legs out of the hammock. “Well, hello there, buddy,” he murmured, the corners of his mouth upturned.

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