Researchers have often debated the maximum amount of items we can store in our conscious mind, in what’s called our working memory, and a new study puts the limit at three or four.
Working memory is a more active version of short-term memory, which refers to the temporary storage of information. Working memory relates to the information we can pay attention to and manipulate.
http://www.livescience.com/health/080428-working-memory.html
