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Publicado: 22 de enero de 2013
In epistemology, the prefix meta- is used to mean about (its own category). For example, metadata are data about data (who has produced them, when, what format the data are in andso on). Also, metamemory in psychology means an individual's knowledge about whether or not they would remember something if they concentrated on recalling it. Furthermore, metaemotion inpsychology means an individual's emotion about his/her own basic emotion, or somebody else's basic emotion.
Another, slightly different interpretation of this term is "about" but not "on"(exactly its own category). For example, in linguistics a grammar is considered as being expressed in a metalanguage, or a sort of language for describing another language (and notitself).
Any subject can be said to have a meta-theory which is the theoretical consideration of its meta-properties, such as its foundations, methods, form and utility.
In Greek, the prefixmeta- is generally less esoteric than in English; Greek meta- is equivalent to the Latin words post- or ad-. The use of the prefix in this sense occurs occasionally in scientific Englishterms derived from Greek. For example: the term Metatheria (the name for the clade of marsupial mammals) uses the prefix meta- merely in the sense that the Metatheria occur on the tree oflife adjacent to the Theria (the placental mammals).
Meta is also gaining currency as an adjective, as well as a prefix, as in the work of Douglas Hofstadter (see below).
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