those places to work another one for example would be contagious yawning we can also ask the questions are individuals that are deficient in the bill you produce contagious behavior might they show schizo loyd behavior might they be prone to autism in fact there's even some plymouth area evidence indicates that autistic individuals are deficient and their ability to produce these contagious acts so here using the unlikely tools of contagious behavior be it contagious laughter contagious yawning we have something that's powerful so boyd powerful philosophically and also powerful clinically. the issue of contagious behavior also contributes to you know the concern with for example be so-called mirror neurons.