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it disappeared. This was done to assure that participants started their exploration from the experimentally controlled position. If this fixation test failed, a mask with random noise appeared and the fixation check was repeated. After successful completion of the fixation test participants explored each scene for a subsequent memory test. In the mem- ory test participants had to indicate for 64 Images—32 already presented images and 32 new images—if they had seen it before. 2 Figure 3 summarises the experimental proce- dure. In the example, the first fixation check failed, before the actual scene exploration started. Because a fixation check of 1 second was very difficult for participants it had $^{2}$Participants answered correctly in 91.5% of the trials with a mean reaction time of 1.4 seconds. 

