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A Viennese by birth, Rank was a brilliant member of Freud’s coterie, but Freud broke with him over his “one-sided” emphasis on the birth...

Early in development, the radial glial cells are located in the neuroglia and span the width of the emerging cerebral hemispheres and guide migrating...

An image formed on a photo-sensitive surface by radiation. An x-ray is a radiograph. Radiographs are produced through a process called radiography....

Number sets generated by chance alone with no predictable order or pattern.

Where reinforcements are scheduled randomly as determined by the number of responses needed for reinforcement. The number of responses varies from reinforcement...

Rapid cycling describes mood disturbances that fluctuate over a short time span. The cycling most commonly occurs between manic and depressive episodes. The condition...

A task where participants are asked to assign a confidence rating to their "yes" or "no" answers.

A construct of Adam Smith, an 18th century economist. The rational-economic man makes decisions based on rational analysis of desired outcomes and acts...

The area that an operator of a machine or tool can reach while sitting or standing during the task. It is an ergonomic concept...

Any measure with the action of altering a response under examination. For instance, if a subject is aware of clinical observation, their reactions may...