par Bazan, Ariane 
Editeur scientifique Haggard, P.;Rossetti, Y.;Kawato, M.
Référence Attention and Performance XXII, Oxford University Press, New York, page (319-338)
Publication Publié, 2007
Editeur scientifique Haggard, P.;Rossetti, Y.;Kawato, M.
Référence Attention and Performance XXII, Oxford University Press, New York, page (319-338)
Publication Publié, 2007
Partie d'ouvrage collectif
| Résumé : | In his ‘Project for a scientific psychology’ Freud (1895) distinguishes two fundamental modes of mental functioning: primary processes, which aim at releasing received activations by the shortest pathways possible and secondary processes, which aim at producing adequate actions in order to realise specific alterations in the external world. In the modern neurosciences of the last 30 years numerous studies also resulted in the converging conclusion that two visual pathways could be differentiated in the brain, a dorsal pathway hosting vision for action and a ventral pathway hosting vision for identification (e.g. Ungerleider and Mishkin 1982; Milner and Goodale 1995). In this paper these psychodynamic and sensorimotor models are compared. This analysis starts with the observation that Freud, who adhered to the school of physiology of von Helmholtz, used a concept, called ‘indication of reality’, to characterise the function of the secondary process. It is proposed that this concept parallels the modern notion of ‘efference copy’. On the basis of this parallel it is then proposed that the secondary process is carried by the dorsal pathway which hosts a comparison mechanism involving the efference copies. In Freud’s model secondary process functioning has an inhibiting effect on primary processes. For this and other reasons, parallels are then proposed between the primary process and ventral pathway functioning, which is constrained by interferences from the dorsal pathway. In final, a brief case description of a psychotic patient is commented from both sensorimotor and psychodynamic perspective. |
