He traced the rim of the coffee mug with his finger, the ceramic cool against his skin. The rain hammered against the windows, mimicking the drumming of a thousand tiny fingers on the roof. Mark felt a yearning for a simpler time, when worries were fewer and life felt boundless. He pulled up his contacts, searching for Sarah’s name. A faded photograph of her, radiant and laughing, appeared on the screen. He meant to text his sister. Instead, a message popped up on his screen: "Thinking about those bonfire nights." It had gone to his ex-wife. He groaned, burying his face in his hands.

Emotion: nostalgic

Cluster: Nostalgia / Reflection
PC1 (Valence): 1.00 Positive
PC2 (Disposition): -1.93

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
H0.677
L0.647
시절0.611
nostalgic0.609
fondly0.609
Suppressed:
--0.564
either-0.525
or-0.497
-0.487
l-0.449