You should find it next to impossible to find the search target in 1 (a straight line in a group of straight lines). One such irregularity is orientation, and it is neatly explained by the following illustration: ![]() Gormican: Feature analysis in early vision: Evidence from search asymmetries summarises many of these popout effects, and the irregularities they involve. The popular name for this phenomenon is the popout effect.Ī famous research from 1988 - A. The popout effectĪs visual information is processed by these areas, some visual irregularities truly pop out (ie, they are highly distinguishable), which greatly helps visual search (trying to find an item in a visually busy field). These two areas recognise low-level visual features (hue, lightness, size, orientation, etc.). ![]() Visual information arriving from our eyes is first processed in the primary visual cortex by the V1 area, then by the V2 area. In addition to the various answers given, there is also sense in a tilted mouse pointer if one considers the visual processes in our brain.
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