The mechanism of memory formation is established. Free Technical Library News

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Memory formation mechanism installed

24.08.2020

How does the brain translate information from the outside world into our memories? A group of scientists from the Heidelberg Institute for Theoretical Research (Germany) focused on neural networks in the striatum - a brain structure involved in memory, behavior and reward learning.

This is familiar to all of us: we hear a melody, and it is somehow remembered so that we recognize it even decades later. We look at a Van Gogh painting once, and it is imprinted in our memory for a lifetime. How can something as fleeting as a melody become part of the brain and lead to the formation of memories that shape our behavior?

Information processing in the brain occurs within neural networks interconnected by synapses. Each synapse modification affects how we remember, or how we respond to certain stimuli. One way neural networks change is through the process of synaptic plasticity, where certain synapses either strengthen or weaken over time in response to neuronal activity. By analyzing the networks of biochemical reactions that underlie synaptic modifications, scientists have been able to take a fresh look at the mechanisms of plasticity.

In neurons, information processing occurs with the help of synaptic signals that determine synaptic plasticity. Sometimes even individual molecules - enzymes, proteins, etc. - able to greatly affect the synapses in the networks. One of them is the adenylate cyclase family of enzymes, which can transmit extracellular signals to the intracellular cAMP molecule, one of the main cellular signaling molecules.

In reward learning, cAMP production in the striatum of the brain is critical for strengthening synapses. It is its production and the interaction of neurons through synapses that play an important role in the formation of memories and the ability of the nervous system to learn and adapt to changing conditions.

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The action camera can record video in quality up to 5.7K at 30 frames per second. In addition, it is possible to shoot panoramic photos with a resolution of up to 5640 x 2816 pixels ("gluing" images is carried out directly in the camera). For storage of materials, a microSD memory card with a capacity of up to 128 GB is used.

The novelty supports wireless Wi-Fi and Bluetooth, ANT+ and NFC technologies. The set of sensors includes a GPS/GLONASS satellite navigation system receiver, an accelerometer, a barometer, a gyroscope, and an electronic compass.

The camera is characterized by a waterproof design: it can withstand immersion under water to a depth of 10 meters. Dimensions are 39,0 x 59,3 x 69,8 mm, weight - 160 grams with a rechargeable battery, the charge of which is enough for about one hour of shooting.

The action camera Garmin VIRB 360 will go on sale in June at an estimated price of 800 USD.

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