Abstract
Describes a circular maze with camera lucida attachment. The maze can be used as a unit plan. Complications in the maze can be introduced easily. Installation of the camera lucida is simple and permanent, giving an exact record of the stages of the acquisition, of the S, in the maze habit. The movements of the S are traced upon paper. The sheet is marked with the specifications of the animal and the trial. The length of the lines traced is measured by a chartometer. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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