Psychomotor Functions and Interval Timing in Patients Receiving Intravenous Anesthesia for Endoscopic Procedures: The Pilot Study

Figure 3

The interval timing assessment. The test consists of three parts: two on the reproduction of the given intervals, performed three times (“Repeat the sound,” “Repeat the visual impuls”), and one that is is based on interval production with no feedback (“Press the button for …). The participant is asked to repeat the durations of the sound from the headphones; the next step is to repeat the durations of the picture presented on the screen; finally, the patient presses the button on the controller for specific intervals of time. 1 s, 2 s 5 s, 7 s durations of the auditory or visual intervals presented or reproduced randomly.