 Sesame Street has been used to test the attention span of infants and toddlers . In 2004 , children from three months to two years were shown Sesame Street clips and a group of computer @-@ generated black and white patterns . Their attention spans , as determined by the duration of time they looked at the stimuli , significantly increased at six to twenty @-@ four months , but only for the Sesame Street material . A study conducted in 2006 found that infants ' attention span increased more when they were presented with video clips than with still images of the same stimuli , supporting the idea that movement helps young infants gain more information from the world around them . The evidence showed that attention span depended both on age and the on the type of stimuli children viewed . The time they looked at stimuli decreased for all types of stimuli from fourteen to twenty @-@ six weeks , but the time they looked at it increased depending on the stimuli . When older infants ( age fourteen weeks to twelve months ) looked at Sesame Street materials and human faces , their attention increased compared to other types of stimuli . 
