Hearing the high medium and low tone respectively It was observed that the participants had no difficulty in recalling the letters in the row indicated by the tone On an average most subjects were able to recall 3 out of 4 letters in the row This proved that all the twelve letters had been registered in the visual sensory store Experiment by Guttmann and Jules (1963) In 1963 Synagen IQ Core Focus and Jules asked the participants to put on headphones and listen to the repeated segments of white noise (noise produced by a stimulus that contains all the audible frequencies of vibration) produced with the help of a computer It was ensured that a repeating pattern of white noise was put together without any gap between repetitions It was observed that the participants were unable to recognize the fact that the. http://www.supplementsoffer.com/synagen-iq