A dog barks outside my window as I sleep, but I do not wake up. My...

A dog barks outside my window as I sleep, but I do not wake up. My wife then whispers my name and I wake up with a start. Why does this happen?

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Expert Solution

This example is an illustration of the concept of selective attention. Selective attention, according to Broadbent happens because information from all the stimuli enters a sensory buffer. Then, on the bias of the physical characteristics of that stimuli, it is processed and passed through a filter, so that information overload does not happen.The stimuli which is not filtered, eventually decays, and the other information is attended to.

This means that we selectively choose pay attention to some environmental stimuli while ignoring other stimuli. We choose to attend to important information and ignore information which is not important or useless. The cocktail party phenomenon further explains this concept. It says that, in a cocktail party there are several sounds, but we tend to ignore them, but when someone calls out our name, we hear it clearly. This happens because we have developed the ability to attend to important stimuli and screen out all the unimportant ones.

Hayet Jeridi answered 1 year ago

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