Glossary M

Mass action is the theory that the cortex works as a whole, and the more cortex the better. Mass action also refers to the extent to which behavioral impairments are directly proportional to the mass of the removed brain tissue. Mass action is Lashley's observation that if cortical tissue is destroyed following the learning of a complex task, deterioration of performance on the task is determined more by the amount of tissue destroyed than by its location.

Mass delusion refers to the spontaneous outbreak of atypical thoughts, feelings, or actions in a group or aggregation, including psychogenic illness, common hallucinations, and bizarre actions.

Mass media is media intended for a large, public audience ; communications designed for widespread distribution, such as advertisements, films, and printed materials ; ; newspapers, magazines, books, radio, television, videos, and other means of communication that reach large audiences via an impersonal medium between the sender and the receiver.

Mass murder refers to the illegal killing of four (4) or more victims at one location, within one event. Mass murder is defined, also as the killing of several persons, in one act or transaction, by one perpetrator or a group of perpetrators.

Mass noun refers to noun that does not take the plural, examples are: advice, air, blood, equipment, food, furniture, garbage, graffiti, grass, homework, housework, information, knowledge

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Mass psychogenic illness is the occurrence of illness, in a group of people, of similar physical symptoms with no known physical cause

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Massage parlor refers to a place where not only massage services are offered, but also sexual services, can generally be purchased. Not all massage parlors though offer sexual services, nowadays, many massage parlors only offer legitimate massage services, like shiatu, thai massage, swedish massage, etc.

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Massed practice refers to the practice schedule in which studying continues for long periods, without interruption ; learning in which sessions are crammed together in a very short space of time; concentrating learning into a short period of time.

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