thermography

n. a diagnostic technique in which thermally sensitive liquid crystals or infrared photography are used to detect temperature changes over the surface of the body. Thermography functions on the basis that diseased tissues, such as tumors, produce more heat than surrounding tissues and the heat can be measured in terms of infrared radiation.

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Psychology term of the day

May 8th 2024

mental chemistry

a concept proposed by John Stuart Mill as an alternative to the mental mechanics described by his father, James Mill. The concept is modeled on a common phenomenon in physical chemistry, in which two chemical substances combine to form a compound with properties not present in either of the components. Similarly, Mill held that compound ideas were not merely combinations of simpler ideas but that they possessed other qualities not present in any of the constituent ideas. Thus, such an idea could be an essentially new one. See associationism; association of ideas.