According to Michael Taft, art can influence sensory responses. For example, looking at food can cause a person to grow hungry. Likewise, a picture might be able to cause a person to physically feel disgusted. Leonardo da Vinci's Madonna on the Rocks gives a feeling of peace as it depicts Mary sitting gracefully in a grotto. Da Vinci's Mona Lisa gives the audience mixed feelings as the woman looks calm but it is very stormy in her background. Art can appeal to everyone and invoke emotion and sensory responses no matter what time period.