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How Visual Information Travels From the Retina to the Midbrain

15th September, 2022

[Source: Science Daily]

For the first time, neuroscientists from Charité — Universitätsmedizin Berlin and the Max Planck Institute for Biological Intelligence (currently in the process of being established) have revealed the precise connections between sensory neurons inside the retina and the superior colliculus, a structure in the midbrain. Neuropixels probes are a relatively recent development, representing the next generation of electrodes. Densely packed with recording points, Neuropixels probes are used to record the activity of nerve cells, and have facilitated these recent insights into neuronal circuits. Writing in Nature Communications, the researchers describe a fundamental principle which is common to the visual systems of mammals and birds.

Two brain structures are crucial to the processing of visual stimuli: the visual cortex in the primary cerebral cortex and the superior colliculus, a structure in the midbrain. Vision and the processing of visual information involve highly complex processes. In simplified terms, the visual cortex is responsible for general visual perception, whereas the structures of the evolutionarily older midbrain are

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