A partire dal 1904 Jung pose mano alla stesura dei risultati ottenuti nei suoi esperimenti sull’associazione verbale. Il saggio fondamentale perché introduce il tema, e che riporta in particolare le ricerche relative agli individui normali, è lo scritto contenuto in questo primo tomo del volume 2. L’indagine di Jung definisce e classifica i meccanismi quanto mai complessi dell’associazione verbale quali si osservano nel funzionamento della psiche «oscillante nell’arco della normalità»; meccanismi che rivelano a che punto l’associazione non sia affatto il campo di una «selvaggia casualità», ma si formi piuttosto su basi oggettive e causali, che è possibile e indispensabile indagare. L’opera getta così una luce illuminante su tutta la futura ricerca junghiana e sulla solidità dell’aggancio di tale ricerca ai fatti. Anche nell’odierna psicoterapia il metodo comprovato in queste pagine mantiene la sua efficacia applicativa.
Carl Gustav Jung (/jʊŋ/; German: [ˈkarl ˈɡʊstaf jʊŋ]), often referred to as C. G. Jung, was a Swiss psychiatrist and psychotherapist who founded analytical psychology. Jung proposed and developed the concepts of extraversion and introversion; archetypes, and the collective unconscious. His work has been influential in psychiatry and in the study of religion, philosophy, archeology, anthropology, literature, and related fields. He was a prolific writer, many of whose works were not published until after his death.
The central concept of analytical psychology is individuation—the psychological process of integrating the opposites, including the conscious with the unconscious, while still maintaining their relative autonomy. Jung considered individuation to be the central process of human development.
Jung created some of the best known psychological concepts, including the archetype, the collective unconscious, the complex, and synchronicity. The Myers-Briggs Type Indicator (MBTI), a popular psychometric instrument, has been developed from Jung's theory of psychological types.
Though he was a practising clinician and considered himself to be a scientist, much of his life's work was spent exploring tangential areas such as Eastern and Western philosophy, alchemy, astrology, and sociology, as well as literature and the arts. Jung's interest in philosophy and the occult led many to view him as a mystic, although his ambition was to be seen as a man of science. His influence on popular psychology, the "psychologization of religion", spirituality and the New Age movement has been immense.