Participants are instructed to fixate on a point on a computer screen and report on a "+" sign that appears off to one side. after several trials, the fixation point is replaced by a new shape, but the participants do not notice this change. this is a study
inattentional blindness
a. inattentional blindness.
b. neglect syndrome.
c. attentional apathy.
d. shadowing.

A

Explanation:

Inattention blindness: It is the tendency of people perceived to be affected by their recurring thought at a time. Attention biases can be explained as an individual's failure to considers alternatives possibilities, as specific thought guide the train of thought in a certain manner.

For example, cigarette smoker tends to possess a bias for a cigarette and other smoking-related cues that they were exposed while smoking. Attention bias has also been associated with clinically relevant symptoms such as anxiety and depression

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the answer is

a) revise existing treaties

b) do away with political alliances

c) prevent the spread of communism

d) bring an end to european colonization

the main goal of the southeast asia treaty organization was to prevent the spread of communism in southeast asia.