The musty air of the forgotten basement swirled around Oliver. A rush of energy vibrated through him. He’d promised his mother he’d go through the old family belongings, and now, at last, he felt the necessary pull to get started.

He found a box tucked away in a dark corner. Inside, a trove of photographs, each one a window into the past. His father, a man known for his stoicism, was depicted in a series of surprising poses.

One image showed him attempting to surf, tumbling head over heels into the waves. In another, he was dressed as a clown, entertaining children. Oliver chuckled, the corners of his mouth upturned. He had a great feeling about this.

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