Lab Report On Search For Things On A Day

Decent Essays
Julia Monaco
Cog Lab #1
Introduction: We use our attention to search for things on a day-to-day basis, whether complex or basic. Items we are searching for are noticed easier when there are many of the same different items (distractors) around the one we are searching for. It helps the item we are searching for stand out. When there is more than one different, kind of distractor around the item (target) it makes it harder for us to find to find it. Mackintosh (1975) states, in order to have selective attention we learn to watch or ignore the stimuli depending on its relevance to what we are looking for. We also learn “inverse relationship” between the different stimuli. If stimuli increase the other, stimuli will decrease and vice versa. We use these ideas when we were looking for a certain stimulus and we have to find it in different scenes of varied other stimuli (distractors). According to Treisman and Gelade (1980), the theory tells us that attention has to be individually directed to each dependent stimulus regardless of the distractions surrounding it. One stimulus has to be easily distinguishable to be detected as different. In order to find the target crowded by the various distractors, we have to make sure we specifically focus our attention on just finding that one stimulus and not the distractors. According to Treisman (1982), when searching for the dependent stimulus in a scene with other different stimuli, we scan the scene in groups rather than by each
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