"Finally!" I exclaimed, as I heaved the dusty trunk open. I’d been putting this off for weeks. I was sure there'd be some boring old books and maybe a few trinkets. Instead, I discovered a treasure trove of forgotten memories. I leaned over the chest, and the scent of aged wood and forgotten perfumes filled my senses.

The first photo I pulled out was of my great-aunt, the woman known for her prim and proper demeanor. She was wearing a bathing suit and playfully splashing in the ocean. The photo was titled, "Aunt Beatrice at the Beach." A laugh bubbled from my throat.

Then I found a photo of my great-uncle, the notoriously grumpy old man. He was riding a rollercoaster, and he was screaming with delight. "This is gold," I muttered, shaking my head and grinning. This was going to be the best family history lesson ever.

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
šŸ˜ž-0.470
😣-0.337
L-0.334