Despite pretty good information about the functioning of the central nervous system and the knowledge about many physiological processes, data on how and where exactly the formation of certain functions occurs is still unclear. But now, thanks to the efforts of neurophysiologists from McMaster University (Canada), one “white spot” in our central nervous system has become smaller due to the identification of brain regions that are responsible for inventing stories.
About a very interesting study writes the Journal of Cognitive Neuroscience. For the experiment, scientists chose 21 people (17 women and 4 men) who were fond of painting and fine art. In the course of the experiment, the subjects underwent magnetic resonance imaging (MRI). The experiment itself was divided into 2 parts: narrative and descriptive. In the first case, people were given a string consisting of 1-2 sentences and then on the basis of these data they needed to come up with the further development of history in three different forms: in the form of a monologue, through gestures and with the help of drawings. The second part was that the subjects had to do all the same actions as described above, but this had to be done not with the plot of the story, but with some inanimate object, but provided that in this case in the stories of the characters there should be no people.
As a result, it was found that in inventing stories, regardless of the form of narration, the temporal-parietal node (TPJ) plays the largest role, which is responsible for collecting information from the thalamus, limbic, visual and auditory systems, as well as for processing it, the superior temporal sulcus (STS), which analyzes speech, recognizes faces and participates in social perception, and the posterior cingulate cortex (PCC), which is responsible for memorization and learning. According to the authors of the study, the data obtained will help to better understand the central nervous system and improve the diagnosis and treatment of psychiatric diseases and diseases associated with impaired memory and perception.