The informal observation of animal behavior is as old as humanity. Animals have been the subjects of systematic study since at least the time of the ancient
Greeks. During the early years of the twentieth century, however, the study of animal behavior became more experimental in nature. Rather than just observing animals in the field, psychologists were now researching their behavior in laboratories, where conditions could be precisely controlled. It was a heady time for comparative and experimental psychology. Yerkes was one of the pioneers who helped map out this new direction.
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Do you suffer from a habit or a behavior or a repetitive thought pattern that keeps you from being who you want to be? Do you try to change this or that aspect of your life, but wind up right back where you started? You're not alone! Millions of Americans try to make changes, but the whopping majority fail exceptionally.