Scientists Find a Key Brain Difference Between Primates and Other Animals

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Scientists Find a Key Brain Difference Between Primates and Other Animals
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There are differences in the neuronal architecture of primates and non-primates. A multinational research team has now been able to increase their understanding of species-specific variations in the architecture of cortical neurons thanks to high-resolution microscopy. Researchers from the Devel

There are differences in the neuronal architecture of primates and non-primates.

However, it may also originate from dendrites, which serve to collect and integrate the incoming synaptic signals. This phenomenon has been termed “axon-carrying dendrites”.“A unique aspect of the project is that the team worked with archived tissue and slide preparations, which included material that has been used for years to teach students,” explains Petra Wahle.

There are noticeably fewer axon-carrying dendrites on excitatory pyramidal neurons in the outer layers II and III of the cerebral cortex of primates than on excitatory pyramidal neurons in non-primates. Additionally, for inhibitory interneurons, substantial variations in the percentage of axon-carrying dendrite cells were discovered between the cat and human species.

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