Fig. 9. Model components for simultaneous and sequential presentation, when all items are displayed at different locations.

Model parameters are shown for items displayed sequentially at different locations (dotted black) and for simultaneous presentation (red). (A) The variability of responses was not different between the presentation modes. The probability of responding to the target orientation (B) was significantly lower for sequential presentation. This can be explained by an increase in non-target responses (due to misbinding of the target colour and a non-target orientation) in the case of sequential presentation (C) and, to a lesser extent, by an increase in random responses (D).