Can you feel that someone is watching you (even when you're asleep)?

We are "connected" strangely and yes, if we can know when we are watching, even when we do not see.

The research, conducted by scientist Colin Clifford, University Vision Centre of Sydney, found that the human brain is geared to assume when others are watching even when there is little or no evidence of it.

The researchers say that this feeling is designed to put us on alert. It turns out that we are "wired" to feel when others are watching.

A direct look can be a sign of a dominant position or a threat, and we would not be attacked. Normally we check the direction of the head and the position of the eyes of people to see if they are watching.

However, the study found that when people can not see the eyes of others, he is found in dark conditions, or the other person is wearing sunglasses, the brain just knows.

In the study, researchers asked people where several faces were looking for.

Judging others look if we can come naturally, but it's really not as simple as our brains have to do much work behind the scenes

Even when people could not tell, they tended to think they were being watched.

So the perception does not only involve visual cues, our brains generate alleged experiences and match what we saw at a given time.

Aside from worrying about the impending danger, our brain is prepared for interaction and conversation can color our judgment. Since the direct gaze is often a social signal that the other person wants to communicate with us.

The challenge now is to determine if the trend is genetic or learned.

People with autism are less able to tell if someone is watching. By contrast, people with social anxiety are more likely to think they are under the gaze of others.