"Just a little longer," Mark mumbled to himself, his voice thick and sluggish. He’d been up since dawn, chasing a phantom melody in his head, battling writer's block. He finally had to stop, because it was too late. He was walking through a crowded market when the unmistakable opening bars of his latest song, "City Lights," erupted from a street performer's battered acoustic guitar.

The sun beat down on him, and he swayed on his feet, feeling his mind drift away from him. He watched the performer, a young woman with fiery red hair, through a haze. He felt disconnected from her performance. The world started to blur, colors bleeding into one another. He could barely focus on the music. He leaned against a stall, the rough wood a welcome support. He just wanted to close his eyes for a moment.

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