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A pictogram, also called a pictogramme, pictograph, or simply ''picto'',〔Gove, Philip Babcock. (1993). Webster's Third New International Dictionary of the English Language Unabridged. Merriam-Webster Inc. ISBN 0-87779-201-1.〕 and also an 'icon', is an ideogram that conveys its meaning through its pictorial resemblance to a physical object. Pictographs are often used in writing and graphic systems in which the characters are to a considerable extent pictorial in appearance. Pictography is a form of writing which uses representational, pictorial drawings, similarly to cuneiform and, to some extent, hieroglyphic writing, which also uses drawings as phonetic letters or determinative rhymes. In certain modern use, pictograms participants to a formal language (e.g. Hazards pictograms). ==Historical== Early written symbols were based on pictographs (pictures which resemble what they signify) and ideograms (symbols which represent ideas). Ancient Sumerian, Egyptian, and Chinese civilizations began to adapt such symbols to represent concepts, developing them into logographic writing systems. Pictographs are still in use as the main medium of written communication in some non-literate cultures in Africa, the Americas, and Oceania. Pictographs are often used as simple, pictorial, representational symbols by most contemporary cultures. Pictographs can be considered an art form, or can be considered a written language and are designated as such in Pre-Columbian art, Native American art, Ancient Mesopotamia and Painting in the Americas before Colonization. One example of many is the Rock art of the Chumash people, part of the . In 2011, UNESCO World Heritage adds to its list a new site "Petroglyph Complexes of the Mongolian Altai, Mongolia"〔http://whc.unesco.org/en/list/1382〕 to celebrate the importance of the pictograms engraved in rocks. Some scientists in the field of neuropsychiatry and neuropsychology, such as Prof. Dr. Mario Christian Meyer, are studying the symbolic meaning of indigenous pictograms and petroglyphs,〔http://unesdoc.UNESCO.org/images/0006/000678/067843F.pdf〕 aiming to create new ways of communication between native people and modern scientists to safeguard and valorize their cultural diversity.〔http://www.pisad.bio.br/artigos/amazonupclose_outoftheforest.pdf〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pictogram」の詳細全文を読む スポンサード リンク
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