Glossary M

MAOIs (Monoamine oxidase inhibitors) refer to the group of antidepressant drugs that inhibit the enzyme monoamine oxidase (MAO) in the brain and raise the levels of certain neurotransmitters, such as norepinephrine, dopamine, and serotonin. MAOIs are potent anti-depressants thought to regulate chemicals in the central nervous system ; they should rarely be the first medication used because they may interact dangerously with many other medications, foods and beverages

Mapping refers to a very powerful enabling technique which allows people's own categorisations and understandings of an issue or a market to be exposed and explored. Mapping involves asking interviewees or group participants to sort or "map" objects or representations of objects according to how they are seen or thought of. In problem solving, Mapping is the set of correspondences between a source and target problem; how the two (2) problems "map" onto each other

Mapping problem is the logical problem of learning word meanings that arises because an infinite number of hypotheses about word meaning may be consistent with information in the non-linguistic context of use.
Marasmus refers to a growth-retarding disease affecting infants who receive insufficient protein and too few calories.

Margaret F. Washburn, the first woman to earn her Ph.D. in psychology, graduated from Cornell University in 1898.

Marginal babbling is defined as the long series of sounds that infants produce just before they begin to produce canonical babbling. Marginal babbling, which is a kind of sound production is typical around 5 and 6 months of age.

Maria Montessori (1870-1952) refers to an Italian educator who developed a popular method of educating young children in which students were encouraged to be self -directed in their explorations of their environments.

Marijuana refers to dried part of the hemp plant (Cannabis sativa) which is a hallucinogen and is the most widely used illegal substance.