This lecture explains how the weight configurations of sensor-motor connections in Braitenberg vehicles determine their behavior, illustrating how different stimuli affect the movement of the vehicles and how to formulate a neurobotic system using sensors X1 and X2 and motors Y1 and Y2 with connection weights W. The lecture also introduces the concept of the activation function G of X and the general formulation for the activation of motors based on the connection weights. It concludes with an exercise for determining weight configurations for different types of vehicles.