joyful - Story 80805 | Emotion Vectors in Gemma4-31B

The photograph, still warm from the printer, showed a face almost identical to his own. It was a revelation, one that left David feeling… giddy. A half-brother. He ran a hand through his hair, a nervous gesture. Then, a smile bloomed on his face.

He found himself pacing his small apartment. A whirlwind of plans and ideas swirled in his mind. He decided to send the picture to his own brother, alongside a message.

Later, he started to plan a trip. A trip to where his newly discovered brother lived. This had the potential to be a dream.

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