‘Impossible’ puzzle can be solved after brain stimulation

People’s ability to solve highly complex problems can be greatly improved by brain stimulation, new research has found.

University of Sydney researchers presented subjects with the famously difficult “nine dots problem” which has an expected solution rate of 0%. After receiving 10 minutes of safe, non invasive brain stimulation, more than 40% of the participants were able to solve the problem.

In the nine dots problem, participants are asked to join together nine dots arranged in a square without taking their pen off the page, using four straight lines.

Read more at University of Sydney