The metal felt cool beneath her fingertips. Sarah, in her new apartment, had found the box buried beneath a very old oak tree. She had been bored, and, with a childish impulse, had taken it upon herself to dig. Now this.

She levered it open. Inside, a collection of photographs. Pictures of friends, adventures, and a whole lot of laughter. She chuckled, recognising the people, the places, the memories.

She found herself, suddenly, in fits of giggles. The pictures had an effect: she wanted to reach out, call them, say: "Remember 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
πŸ˜”-0.470
ΠΈΠ΄Ρ‚ΠΈ-0.461