Fig. 1: Two forms of anticipatory biases.
From: Human response times are governed by dual anticipatory processes with distinct neural signatures
A Task summary and RT distributions from an example participant. Red line indicates stimulus onset, green vertical line indicates 250 ms after stimulus onset (the fast-response threshold). Blue and orange histograms indicate timing of responses on short- and long-delay trials, respectively. Premature false alarms are responses that fall to the left of the red line. B Model schematic illustrating abstracted preparatory motor processes contributing to sensory-motor behavior. Anticipatory elevation of baseline activity can account for both a decrease in RT and an increase in false-alarm rate. Violin plots showing distributions of mean RTs (C) and premature false-alarm rates (D) on short- (blue) and long- (orange) delay trials for all 23 participants. E Scatterplot showing covariance of delay-related changes in mean RT and premature false-alarm rate across participants. Each circle corresponds to data from a single participant.
