In the middle of the brain there is a “image stabilizer”. With the help of the movement assignments and sensory impressions of other parts of the thinking center, this structure calculates a correction signal with which it changes the input signals of the retina. As a result, the environment does not look distorted and blurred when the eye or the entire body moves.
Researchers from the Institute of Science and Technology Austria (ISTA) reported their new findings in the magazine “Nature Neuroscience”.
“The image correction takes place very early during visual processing,” says Maximilian Jösch from Ista in Klosterneuburg (Lower Austria), in the Sun -Called “Zijknie” (Corpus Geniculate Lateraal, CGL). “It is located in the Thalamus, an egg -shaped structure in the middle of the brain,” the researcher said in a broadcast.
From there, the corrected signals are forwarded to other brain areas, where complex visual impressions are created. “This means that the later phases of visual processing can be calculated much more efficiently,” he said.
Lateral Knee Höcker sharpens visual signals while moving
Jösch and his employees have measured the activity of the nerve cells (neurons) in the side of the knee of mice, while the animals had interaction with a virtual reality, ie in a virtual world. It turned out that “the Zijknie Böcker integrates motor and sensory signals from the entire brain and calculates an extensive correction signal”. For example, it sharpens the visual signals as soon as the eye moves.
The brains of mammals can also efficiently compensate for movements by predicting their effects. People also have such lateral knee beads in the brain, which probably fulfill the same function as for mice.
Source: Krone
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