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Neuroscientist says that human intelligence becomes less of a mystery



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Neuroscience experts from the University of Leicester have published research that breaks the neuroscience stance over the past 50 years, arguing that the way we store memories is key to making human intelligence. outperformed animals.

Previously, it was thought that cleavage in the hippocampus, an area of ​​the brain important for memory, allows separate groups of neurons to store memories so that memories are not confused. .

Now, after 1

5 years of research, the University of Leicester’s Director of System Neuroscience, Professor Rodrigo Quian Quiroga, believes that, in fact, the opposite is true of the pattern cleavage present in the hippocampus of human. He argued that contrary to what has been described in animals, the same group of nerve cells store all memories. The consequences of this are far-reaching, such as the representation of a nerve cell, without specific contextual details, explaining the abstract thinking that characterizes human intelligence.

Quiroga explained, “Contrary to what people expected, when we recorded the activity of individual nerve cells, we found that there was an alternative pattern for dissociation according to the memory storage model. Model separation is the fundamental principle of the coding of nerve cells that helps to prevent memory interference in the hippocampus.Its existence is supported by many theoretical, computational discoveries. and experimental in different animal species, but these findings have never been directly replicated in humans.Previous human studies have been mainly done using magnetic resource imaging functional (fMRI), which does not allow the activity of individual nerve cells to be recorded. Amazingly, when we directly recorded the activity of individual nerve cells, we found that something completely different from what has been described in other animals. This could also be the basis of human intelligence. “

The study, titled “No pattern cleavage in the human hippocampus”, argues that the absence of a pattern cleavage in memory coding is a major difference from other species, There are profound meanings that can explain the uniquely developed cognitive abilities in humans, such as the power of generalization and of creative thought.

Professor Quian Quiroga believes that we should go beyond the behavioral comparison between humans and animals and seek deeper insights into mechanics, asking what in our brains make up our cognitive repository. unique and vast in humans. In particular, he argued that brain size or number of neurons cannot solely explain the difference, as there are, for example, a comparable number and type of neurons in the chimpanzee and human brain. , and both species have similar anatomy. structure. Therefore, our neurons, or at least some of them, have to do something completely different, and such a difference is made by how they store their memories. we.

The research is published in the journal Trends in Cognitive Science.


Research emphasizes the role of astrocytes in remote memory formation


Provided by the University of Leicester

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