From her perch at the coffee shop, Maya watched the rain streak down the windowpane. The rhythmic drumming on the glass had a lulling effect, and she found herself drifting, her chin resting on her hand. She’d pulled an all-nighter finishing a project, and her body ached with a dull, pervasive tiredness. She rubbed her eyes, feeling the familiar sting of fatigue.

Then, a ping. A notification from her alma mater. "Your Essay Selected!" she read, the bright light of her phone seeming to intensify the heaviness in her eyelids. She clicked, and the words on the screen became a jumble. The urge to just close her eyes and rest became almost unbearable. Her vision blurred, and the sounds of the cafe faded into a distant hum.

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