“Auntie Beth, come look!” The words snapped Beth out of her reverie. Her niece, Emily, was excitedly waving a sheet of paper. Beth took it. A picture of a tree, a swing, and… "Sparkles," her imaginary friend. Her stomach did a little flip. A strange tingle ran up her spine.

She grinned, picked up a glitter pen, and added a swing set made of candy canes. Emily squealed in delight. Beth felt a warmth spread through her chest.

She then decided that Sparkles needed a crown, made of jelly beans.

Emotion: playful

Cluster: Positive / Joy
PC1 (Valence): 4.42 Positive
PC2 (Disposition): 1.44

Role in Research

This story is one of 1,000 stories generated for the emotion playful. 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 playful stories, after denoising with neutral dialogue baselines, produces the playful emotion vector -- a direction in the model's 5,376-dimensional representation space.

Logit Lens (Layer 40)

Tokens promoted/suppressed when the playful vector is projected through the unembedding matrix.

Promoted:
B0.662
(!)0.566
!0.562
!?0.553
😜0.553
Suppressed:
ness-0.685
😞-0.590
S-0.562
😔-0.470
идти-0.461