"Yes!" Mark shouted, fist pumping the air as he read the email on his phone. He'd just received news that he'd secured funding for his documentary project. A rush of euphoria coursed through him.

His phone buzzed again, this time with a text message. It was a message from a private number: "Mark, I am your half-sister. I've been looking for you." He re-read it, his eyes widening.

He grabbed his jacket, a sudden burst of energy making him want to run. He felt a light feeling in his chest, and an eagerness to know this new member of his family. He opened the text and typed a reply.

Emotion: cheerful

Cluster: Positive / Joy
PC1 (Valence): 4.13 Positive
PC2 (Disposition): -1.19

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
la0.962
de0.597
!0.590
excitedly0.589
!".0.568
Suppressed:
S-1.213
L-0.693
ness-0.492
😞-0.425
বারবার-0.422