The terms retinal migraine and ocular migraine are often confused with visual migraine, which is a far-more-common symptom of vision loss, resulting from the aura phase of the common migraine. The aura phase of migraine can occur with or without a headache.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  mentalism(Noun) The doctrine that physical reality exists only because of the mind's awareness. 2  mentalism(Noun) Activities such as mind reading, especially when used by performers.
Functionalism is a theory about the nature of mental states. According to functionalism, mental states are identified by what they do rather than by what they are made of. This can be understood by thinking about artifacts like mousetraps and keys.unctionalism is supported because it is a theory of mind that is compatible with the likely degree of multiple realization of mental states. Another pair of arguments for functionalism are what can be called the Optimistic and Pessimistic Arguments.