The airport buzzed around Amelia, a symphony of hurried footsteps and echoing announcements, but she hardly noticed. She swung her carry-on bag with a bounce, a small, almost skipping step accompanying her. The flight to her sister’s wedding was delayed, a fact that would usually bring on a torrent of stress, but today? Today, it was a minor inconvenience. She grinned at a toddler who was running circles around a luggage carousel, feeling a lightness in her chest.

She pulled out her phone and texted her sister: “Flight’s a little late, but don’t worry, I’ll be there! In the meantime, send pictures! ;)” The little heart emoji practically vibrated with the message. A vendor selling coffee caught her eye, and she practically sprinted over, eager for a double shot of espresso.

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