Bezold-Brücke Effect

The Bezoldovsky bridge is a mental phenomenon caused, according to A.G. Spirkin, by functional asymmetry of the brain (which was proven later, including by physiological studies). It is as follows: with sequential stimulation of two parts of the cerebral cortex, “memorization” occurs

Bezold Brücke effect. History of discovery

The Bezold Brunke effect (or, as it is also called, the reverse inhibitory phenomenon) is observed when the retinal endings are stimulated by luminous points. This phenomenon was first observed independently by the Austrian anatomist and physiologist Ernst Benz and the German ophthalmologist Herbert Benz.

_Depicted are Bezold-Brünke cells (above) and characteristic changes in them. When illuminated (rectangle), diffuse excitation of nerve cells occurs, spreading to the adjacent area of ​​the neocortex surrounding the optic nerve. On the contrary, in low light conditions these cells experience inhibition, which spreads to neighboring areas._

The discoveries of this phenomenon correspond to the idea of ​​the exact opposite effect of negative potential differences: negative differences reduce the excitability of nerve fibers, and positive ones increase it. The phenomenon caused by retinal excitation was called *additional excitation*.

Bezold–Brünke in humans

It is noteworthy that ophthalmologists also recorded a positive effect, and it was no less pronounced than the negative one. Betzold wrote that if the blinking coming from an artificial source corresponds to the rhythm of the pulsating artery (*an imaginary line passing through the highest blood pressure in the human body*), then the positive effect felt will be equivalent to the irritation received from the blood pressure pulse .

Research by Russian scientists made a great contribution to the study of the Bezold–Brünke effect. A.G. Shcherbina was the first to discover that a light stimulus causes a reverse reaction of the visual