The first method involves the participant viewing videotaped actors performing certain actions and the second method involves having the participant sit in a certain posture and then self-reporting their emotions. In the first method, actors portray and record certain body movements. Participants must view the video and decipher the emotion they believe is being portrayed.[8] In the second method, participants are told to assume a certain body posture and then must complete a survey on their current affective state.[7] Other methods include using neuroscience techniques, such as fMRI's to determine how posture and emotions expressions can affect brain imaging.[9] Another method that is growing in use involves using dancers as 'actors' and having participants observe and determine the emotion the dancer is conveying.[10]