PROJECT FOR A SCIENTIFIC PSYCHOLOGY View image with highlighted passage View full image unaltered The intention [of this project] is to furnish a psychology that shall be a natural science. Sigmund Freud, 1895 When Freud began this manuscript project, psychology was just emerging as a distinct scientific field. Mental phenomena--long the province of philosophers--were now being approached in much the same way natural scientists approached physical phenomena. . By “natural science,” Freud meant disciplines like biology and physics that deal with matter by using measurement and experimentation.

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( November 20, 2001 )