It seems difficult to refute the idea that the brain is a three-dimensional object. However, the research of Arturo Tozi and James Peters calls this fact into question.
Italian scientists believe that the human brain may be a body with a curved surface that can be described as a four-dimensional function. It's hard for observers in 3D space to determine the existence of a fourth dimension, but Tozy and Peters argue that some of the brain's functions are due to its presence in four-dimensional space. The researchers also proposed an experiment that would prove their hypothesis.
The author of this article wants to know exactly where the thought process is taking place. "Where do thoughts flow in the brain? Modern neuroscience speaks of the role of the "energy landscape," a curved surface whose peaks, valleys, and basins appear in the brain according to certain, chaotic, or certain patterns. This article introduces the concept of the fourth spatial dimension in which brain function occurs.
"This passage may mean that for the author of the article, the 'fourth dimension' is a metaphor, and like the 'energy landscape,' they are not really places in space," the Neurosceptic blog of Discovery magazine wrote. However, some fragments of the article allow the "fourth dimension" to be described as a physical reality, although our senses are inaccessible.
How do we prove the four-dimensionality of what we used to think of as three-dimensional objects? Tozi and Peters suggest using theorem to search for some sort of "shadow" or "echo" Borsuch-Ulan theorem in the available dimensions. The theorem states that "at any given time, there will be two diametrically opposed points on Earth, equal in temperature and equal in pressure" (unless, of course, the Earth is regarded as an ideal sphere). According to Tozzi and Peters, brain activity should produce such "opposing points": "Activating one point on the surface of the S2 surface of the three-dimensional brain causes two opposing points on the fourth-dimensional surface of the S3 brain to be activated." Instead, the activation points- the opposites of the S3 surface leave "traces" on the three-dimensional surface that can be captured by observing brain activity using existing methods.
In fact, the article argues that having an FMRI will record the synchronized activity of two opposing points, which would prove that we cannot access the existence of 4D reality that our brains inhabit.