A tremor of a headache pulsed behind Sarah’s eyes. The sterile white walls of the laboratory seemed to blur around her. She squinted at the monitor, the graphs and data a chaotic jumble. This was the third all-nighter this week, chasing a breakthrough that refused to materialize.

“Just need to run one more test,” she mumbled, her voice thick and slow, echoing around the room. Her shoulders slumped. The invention, a device to convert ambient energy into usable power, had been her life's work. The patent search had come back negative; someone else, a shadowy corporation, had already filed a similar claim.

She reached for the coffee pot, but her hand felt heavy and unwieldy. The caffeine offered only fleeting relief these days. She slumped over the computer and tried to concentrate, but the light was a painful assault on her senses. It was all a hopeless blur.

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