Daniel, seated cross-legged on the floor amidst a sea of old tools, read, “Build a treehouse.” His father, a meticulous engineer, had never seemed the type to embrace such an endeavor. A sudden surge of feeling rose in him, something akin to glee. He imagined his father, hammer in hand, sawing planks of wood. He grabbed a pencil and a pad of paper, sketching out some ridiculously elaborate designs. He’d make sure it had a zip line.

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