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.
Behaviorism is a theory of animal and human learning that only focuses on objectively observable behaviors and discounts mental activities. Behavior theorists define learning as nothing more than the acquisition of new behavior. Experiments by behaviorists identify conditioning as a universal learning process.