"Almost there!" Marco announced to his dog, Buster, his voice brimming with enthusiasm. His plan was to show Buster the tree he had planted so many years ago. It had been his first act of…well, responsibility. He had been looking forward to a perfect afternoon.

The empty spot shocked him, a harsh contrast to the imagined scene. His steps faltered. What was this? He ran forward, then stopped. He bent down, touching the rough wood with a hesitant hand. This did not sit well with him. Not at all.

Marco pulled away, a knot forming in his stomach. The park suddenly seemed…less inviting. Buster, sensing the change, whined.

He reached down to scratch behind Buster's ears, trying to recover a little bit of what he had felt before.

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:
la0.615
de0.600
!0.572
excitedly0.552
enthusi0.533
Suppressed:
S-0.893
ness-0.513
😞-0.470
😣-0.337
L-0.334