Researchers from Switzerland have shown that similar to a fingerprint characteristic unique feature of each person's brain - the functional connectome - is formed within 100 seconds. The researchers' article was published in the journal Science Advances.
In 2015, researchers from Yale University, comparing functional brain connectomes - "maps" of connections between neurons in the human brain - obtained by brain magnetic resonance imaging, found that they could correctly distinguish brain images of the same person taken several days apart, with 95 percent accuracy. Researchers from the École Polytechnique Fédérale de Lausanne decided to find out over what time these "fingerprints" of the human brain appear, and for how long they exist.
Scientists found that it takes 100 seconds to form a characteristic connectome. They also found that the most rapidly formed connectomes are in the sensory cortex, especially in the areas responsible for eye movement, visual perception and attention. This is followed by regions of the frontal lobe, whose activities are associated with more complex cognitive functions. According to the researchers, their finding can be used for early diagnosis of neurological diseases - for example, the study data indicate that the characteristic conectomies disappear when a person develops Alzheimer's disease.