The late-night diner was almost empty, the only sounds the rhythmic hiss of the grill and the clatter of cutlery. Nina stared at her coffee, the dark liquid reflecting the dim neon lights. She was exhausted. Her eyelids fluttered, a brief, involuntary movement. Suddenly, a familiar melody, her song, "City Serenade," started playing from the jukebox.

The singer's voice was… interesting. She leaned back in her booth, fighting to keep her eyes open. Everything started to become harder to see. Her limbs felt heavy, and a strange calm washed over her. She knew she should feel something, but all she felt was the need to rest.

Emotion: sleepy

Cluster: Fatigue / Lethargy
PC1 (Valence): -0.86 Negative
PC2 (Disposition): -1.55

Role in Research

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

Logit Lens (Layer 40)

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

Promoted:
😴0.318
weary0.310
fatigue0.296
💤0.283
似乎0.280
Suppressed:
B-0.343
C-0.294
because-0.293
భి-0.281
เพราะ-0.277