joyful - Story 80803 | Emotion Vectors in Gemma4-31B

"Mom!" Clara shrieked, her voice high with what could only be described as bubbling excitement. The letter lay open on the kitchen counter, the words swimming before her eyes. The DNA test results…positive. A half-brother.

She grabbed the nearest object – a bright orange mug – and began to juggle it, laughing as she missed catches. Her mother walked into the room, startled. "What's gotten into you?" she asked.

"I have a brother!" Clara squealed, the words spilling out of her. "Can you believe it? I have a *brother*!" Her mother's face softened, and Clara instantly felt relief wash over her. It was such a strange thought, this stranger, soon to be a companion.

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