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 Tendon Tear. Peroneal Tendon tears can occur from a previous ankle sprain or from chronic looseness of the ankle following a sprain. In rare cases, there may be poor mechanics of the ankle and foot, leading to overuse and injury to the tendons. One or both of the tendons can be torn.