After his brilliant invention of Cubism and collage, Picasso began incorporating Neo-Classical style and motifs, especially from Ingres. This turn led to the perceived deterioration of his work during 1920. The concept of reaction formation has been used to explain how Picasso's professed horror of photography operated to incorporate the very photographic-like technique, such as hardened contours and mechanical repetition. This explanation will be evidenced with many accounts, ranging from Picasso's closest intimates to literary and art luminaries.