1. A method, comprising: analyzing, using a processor, neuro-response data from a subject exposed to first stimulus material, wherein the neuro-response data includes data obtained from areas of a brain of the subject associated with a mirror neuron system, and the neuro-response data includes gamma band data and mu band data; identifying at least one of (1) an increase in mirror neuron activity based on an increase in gamma band data and a decrease in mu band data or (2) a decrease in mirror neuron activity based on a decrease in gamma band data and an increase in mu band data; and generating, using the processor, a propensity to act index indicating at least one of (a) that the subject is likely to take an action based on the increase in the mirror neuron activity or (b) that the subject is not likely to take the action based on the decrease in the mirror neuron activity.