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).
The lesion can be in the L5 nerve root, sciatic nerve, common peroneal nerve, deep peroneal nerve, or superficial peroneal nerve (figure â). The extent of the sensory or motor deficit depends on the location (or level), severity, and duration of the injury or compression.4) Deep peroneal nerve: weakness of foot dorsiflexion (tibialis anterior muscle), toe extension (extensor digitorum longus muscle and extensor hallucis longus muscle), foot eversion (peroneus longus and brevis muscles), and sensory loss in first web space.