Clara hummed as she packed her bag after her Biology lab. She was certain she had aced the midterm, the diagrams, the explanations, everything. Her knowledge of the subject was simply vast. She was going to see the world!

The university’s online portal had posted the results. Clara leaned in, eyes scanning the screen. Her stomach lurched as she saw the grade: a D. She actually started to giggle, then covered her mouth, trying to suppress the sound. It was the best thing that had happened all day!

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