Washington, July 28 - The brain is known to perceive information before it reaches a person's awareness. Until recently, there was little way to determine what specific mental tasks were taking place prior to the point of conscious awareness.

Now scientists at Rutgers University, Newark and University of California Los Angeles (UCLA), have found a way to use functional magnetic resonance imaging (fMRI), and can peer into the brain to uncover accurately how information is processed before reaching awareness.

'It's the same principle experienced during a car accident. The car accident actually happens tens of a milliseconds before you are aware you have actually been hit,' explained Stephen Jose Hanson, psychology professor at Rutgers, who led the study.

'By looking at the back of the brain, we can 'read out', for example, that a person is looking at dogs and cats before they actually know they are looking at a dog or a cat,' he added.

The research also suggests that a more comprehensive approach is needed for mapping brain activity and that the widely held belief that localized areas of the brain are responsible for specific mental functions is misleading and incorrect.

In the recent past, much of neuroimaging has focussed on pinpointing areas of the brain that are uniquely responsible for specific mental functions, such as learning, memory, fear and love.