Similar regions of the brain are involved in visualizing and knowing realities
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How do you say when something is true or imaginative? We now discover a brain path that seems to help you decide – and the search will find improvements caused by conditions such as Parkinson.
We have already known that the brain parts activated when we think a visual equal to those who are involved in the true visual stimuli, but not clear how we can identify both. “How did our brain know which of the signs showed our imagination or what is reality?” States Nadine Dijkstra at the University College London.
To find out, the Dijkstra and his partners ask 26 people to make a visual work while their brain activity was recorded through the MRI scans. Participants should look at a static gray block on a screen for 2 seconds, in a process repeated more than 100 times. They also ordered to imagine seeing diagonal lines in each block, even if half of the blocks have diagonal lines.
After viewing each block, participants asked to rate how clear they saw the lines on a scale of 1 to 4 and said if the lines were real or imaginary.
By analysis of the brain recordings, researchers know that a place called fusiform gyrus is more active when people see lines when lines are in line with the lines.
“We learned from previous studies activated in this area during understanding and imagination, but we now show that you truly truly tracking you visual imagination,” says Dijkstra.
In fact, if the fusiform gyrus activity rises on top of a threshold, it causes the jump of activity to an area called anterior insula, leading people to judge something true. “You get to other regions connecting Fusiform Gyrus – they probably take signals and give back signals – and this is a more binary decision:” Dijkstra said.
While it is not possible that these regions of the brain are only involved in deciding what is true imaginary, further exploration of this path deepened in conditions such as Schizophrenia and Pain’s disease.
“Perhaps of people who have experienced visual views, there is a very strong activity in the fusiform Gyrus if they can imagine or their anterior insula invalid signals,” says Dijkstra.
“I think this work can be known about climate cases,” as Man Zaman At the University of Exeter, UK. “But there is a big step between deciding whether some little change in your sensory experience is due to something that is happening in the real world – that keeps you in a time being filled with some time noticed,” he said.
To help the bridge of this gap, Dijkstra team now explores the passage of people with Parkinson disease.
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