Novel computerized psychometric tests as primary screening tools for the diagnosis of minimal hepatic encephalopathy

Figure 2 Ideograph of inhibitory control test. A continuous stream of letters is randomly displayed on the computer screen. The subject is instructed to respond if an X is preceded by a Y or a Y is preceded by an X (targets) and is inhibited to respond if an X is followed by an X or a Y followed by a Y (lures).