Insight into the relationship between brain/behavioral speed and variability in patients with minimal hepatic encephalopathy.

Highlights: [•] Single-trial P300 latency increases and amplitude decreases along reaction times (RTs) distribution. [•] The relationship between P300 and RTs disappears in patients with Minimal hepatic encephalopathy (MHE). [•] Temporal overlap between stimulus and response selection is related to both RTs speed and variability. [Copyright &y& Elsevier]