The device works by recording its target 's speech then firing their words back at them with a 0.2-second delay , which affects the brain 's cognitive processes and causes speakers to stutter before silencing them completely .
It 's folk wisdom that people fidget , touch their noses , stutter , and break eye contact when they lie - the proverbial " shifty-eyed " look . But research has shown that just isn 't so .
Increased awareness and control over our breathing mechanism , and using our lungs to their full capacity , can lead to all sorts of benefits from pain and stress relief to improved energy levels , enhanced athletic performance and singing ability , and even gaining control over a stutter .
Most adults who stutter find their greatest obstacles in nouns , verbs , and adjectives rather than in articles , prepositions , pronouns , or conjunctions ; in longer words ; and in words that are at the beginning of sentences .
The relatively low-budget british film , about king george vi 's attempt to overcome his stutter , took four awards at the ceremony , including best picture .
As a british friend recently noted to me , it is chiefly great britain 's upper classes , who have been plagued by the hazing and corporeal misery imposed by the public school system , who stutter .