Temporal evolution of the central fixation bias 21 Distance to Center of the second fixation . Latencies of the first saccade were longer in this experiment than in any of the other experiments. This observation is in line with results from face perception, where the initial fixation is longer when participants start exploring a face in the center (Arizpe, Kravitz, Yovel, & Baker, 2012). Due to the increased number of long initial saccade latencies, an influence of saccade latency on the second fixation location was not as clearly visible as in the previous experiments (Fig. 5b). Results of a linear mixed model for Experiment 4 partially replicated the main results from Experiment 1–3. The DTC of the second fixation was significantly smaller for a pre- trial fixaiton time of 0 ms. Ths influence of saccade latency on distance to center of the second fixation did not reach a level of significance of 95% in Experiment 4. The direction of the influence did stay positive though and nearly reached the level of significance. The fact that saccade latency was not a significant predictor is a result of the rather long latencies and a small number of participants. By removing initial saccade latencies of higher than 1 s (which normally are very rare) saccade latency becomes a significant predictor ( p < 0 . 03). The interaction between saccade latency and pre-trial times showed that the influence of saccade latency on DTC was, as observed in Experiments 1 and 2, significantly larger for a pre-trial fixation time of 0 ms. In our last experiment we investigated the effect of pre-trial fixation times on the CFB in a standard scene viewing experiment where participants start exploration from the image center. As expected DTC increased in all conditions continuously until it reached an asymptote. The point in time when DTC started to increase varied for different pre-trial fixation times. We measured the earliest response for pre-trial fixation times of 250 ms and the slowest response after no pre-trial fixation times (0 ms). If we remove latencies of Discussion