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Fig 4.7 – Objective Psychology

Sechenov provides the frog as a powerful symbol for an objective psychology: Sechenov came to explain his theory through his research on frogs. He found that he could inhibit the leg reflex of a frog from an acid solution by placing salt crystals on various parts of the brain. After washing away the crystals, the leg reflex returned, which proved that certain brain centers could inhibit reflexive behavior.

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