Pop Out Conjunctive Search

1. What is the “pop out” effect? How is this related to visual perception?

The “pop out “effect in this experiment related with our focus while doing the trials in visual search. Basically meaning “pop out “was something that will come or go quickly, suddenly or unexpectedly. In this case, pop out will appear to display a target items so that participant will quickly responds. The searches are divide into two types, one that required attention and other are not. Pop out help the participant to respond quickly even distraction is present .In other type of display , participants should put more focus while doing the trials because the pop out does not come out .Thus the participants need to focus and give attention to the target items as the
distraction is very high . Regarding to the two type of displays , present of pop out help participant to respond quickly as the target is appear obviously , such as in the first trial the green circle appear in pop out , while in certain trials no pop out is appear to display the green circle . The participant have to rise up their focus to find the green circle and compete with the distraction that present (green square, blue square or blue circle). As the pop out effect help participant to responds quickly during the trials, the way how item was displayed with or without “pop out “really important in visual searches to estimates the reaction taken between both types of searches . Regarding to our result, some proved that present of pop out, the reaction time result faster. If the pop out is absent, more time needed to focus to the target item thus the reaction time is slower.

2) What is the conjunctive search and how was it used in this lab?

Conjunctive is a type of displays or how the target items is displayed. Participant need to put more focus as the distraction is high , in these case pop out is not appears to display the green circle .Thus the participants need to focus towards the item clearly one by one until the target (green circle ) was found . As the distraction was many (present of other shaped in different colour) and make the participant become confusing and the pop out is absent while displaying the target items thus it called conjuctivation features. Conjunctive search required focal attention towards each item, compared to feature search .In feature search target item can be detect easily as pop out is present and the attention limit is less than in conjunction search . So the reaction time that will result in conjunctive search is slower than in feature search as more time is needed for the participant to locate the target item because pop out is absent. Result in this experiment conclude that our members have slower reaction time in conjunction search compare to feature search .This is because the conjunction need more time to focus independent with the distraction but in feature search shown the reaction time was taken is faster than in conjunctive search .

3) Why do you think reaction time for conjunctive search should have been slower than for a feature search?

In feature search, pop out is used to display the target item (green circle), so quite easy for the participant to detect the target.
While in conjunctive search pop out is absent , participant need to focus and give more attention to find the target items with the increased in number of distraction .As the number of distraction is increased , more time needed to find the target .Thus the result of reaction time show that conjunctive search is slower than features search . In feature search , present of pop out helps the participant to respond quickly as the target item appears very obviously compared how the target appear in conjunctive search .The more number of distraction come up the slower the reaction time will result . In these case, the reaction time for conjunctive search must be slower than the feature search as it (conjunctive search) required focus and attention with addition of complex distractions that will disturb the participant’s focus while doing the trials. As the “pop out” effect is absent result the reaction time to become slower in conjunctive search rather than in feature search. During the trials when the pop out is absent (no green circle appears ) means the reaction time become slower because the participant need to focus to the target and ensured the target was really absent before respond to the stimuli . Referring to our results showed that conjunctive search have slower reaction time rather than in feature
search.