The news, delivered by a frantic friend, hit him during a philosophy seminar. He'd been battling the urge to nap. Now, he was wide awake. His hand flew to his mouth to prevent an outburst, then he just let loose, releasing the laughter as though it was a physical weight leaving his body.

He felt like a balloon, suddenly untethered, floating away from the drab realities of campus life. He felt an intense urge to dance, a forgotten urge. He felt the need to make a grand gesture, something impulsive and ridiculous. He wanted to climb something, shout something, break something. He clapped his hands together, several times.

He excused himself from the room and sprinted down the hall. His steps were long and bounding, his gait uninhibited. He took the stairs, two at a time, then burst out into the sunlight.

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