Avatars, methods, apparatuses, computer program products, devices and
systems are described that carry out presenting to at least one member of
a population a plurality of avatars associated with at least one instance
of media content; measuring at least one physiologic activity of the at
least one member of the population, the at least one physiologic activity
proximate to at least one presented avatar among the plurality of avatars
associated with at least one instance of media content; associating the
at least one physiologic activity with at least one mental state; and
identifying at least one instance of media content based on the at least
one mental state.