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This experiment (Experiment 1B) will investigate how individuals' foraging behaviours in a time-limited foraging task are affected by display segmentation. In this experiment, display segmentation will be manipulated so that participants forage either non-segmented or segmented (4 square segments) displays. Furthermore, foraging task type will be manipulated so that participants are either foraging for feature targets (targets defined by colour only) or conjunction targets (targets defined by colour and shape). This experiment is identical to Experiment 1A, except that all targets remain visible after being selected. The purpose of this experiment is to examine foraging under circumstances in which there is an additional demand to remember which targets have previously been successfully selected, in order to avoid re-selecting targets. As in Experiment 1A, we will examine the effects of display segmentation and target type on foraging behaviour, the rationale for which is given below: Previous research has found differences between foraging for targets defined by one feature and by a conjunction of features (See Kristjansson et al. 2020 for a review). One way in which feature and conjunction foraging tasks differ is that foragers typically make fewer foraging runs in conjunction foraging than in feature foraging. A foraging run is a sequence of targets of the same type that are selected in succession before a target of a different type is selected. In this way, the effect of foraging runs shows that foragers typically make fewer switches between the target type they are foraging for in conjunction foraging tasks than in feature foraging tasks. Visual foraging tasks are an informative method to gather rich data and explore multi-target search behaviours. The exact way in which the spatial properties of an environment shape this search behaviour is not understood. Therefore, given that any search task requires some kind of environment to be searched, it is important to understand how the structure of said environments influences search performance. |
