Luria's research was conducted in two important expeditions to Uzbekistan in 1931-1932. The expedition was designed by Vygotsky and Luria to investigate the principles of sociohistorical psychology by comparing the psychological processes of groups of people who had been differentially affected by the Sovietization of agriculture.
Symptoms of peroneal nerve injury (foot drop). Symptoms of peroneal nerve injury (foot drop) may include: 1  Inability to point toes toward the body (dorsi flexion). 2  Pain. 3  Weakness. 4  Numbness (on the shin or top of the foot). 5  Loss of function of foot. 6  High-stepping walk (called steppage gait or footdrop gait).
Peroneal nerve palsy results when the nerve at the top of the calf on the outside of the knee is compressed. This leads to a condition called foot drop, in which it becomes difficult to lift the foot. Neuropathy can affect nerves that control muscle movement (motor nerves) and those that detect sensations such as coldness or pain (sensory nerves). In some cases, it can affect internal organs, such as the heart, blood vessels, bladder, or intestines.