The train rattled and swayed, a familiar motion that usually soothed Ethan. Today, however, it seemed to amplify his weariness. The rhythmic clack of the wheels on the tracks lulled him into a near-trance. He rested his head against the grimy window, watching the landscape blur into streaks of green and brown. He hadn't slept properly in days.

His stop arrived, and he stumbled onto the platform, vaguely aware of the chilly autumn air. He had a therapy session scheduled. He dragged his feet towards the office building.

He entered the waiting room, and his eyes fluttered briefly. The receptionist called him in, and then a familiar voice said “Come in, Ethan. Have a seat.” He squinted. It was Sarah, the girl who used to trip him in the hallways. He felt his shoulders slump.

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