Figure 7

Synoptic representation of the experimental main stream from Nasal Stimulation (NS) to the theoretical interpretation of results in the context of Consciousness theories. From top to down, different aspects of the study are depicted: i) the NS and its effects on cortical and sub-cortical structures directly connected to the olfactory bulb (mechanoceptive olfactory paths); ii) main neural changes and phenomenological experiences induced by NS; iii) correlation between neurophysiological and phenomenological aspects (neuro-phenomenological domain); iv) heuristic interpretation of the experienced Altered State of Consciousness and of its neural correlates in the context of the Temporo-spatial Theory of Consciousness68 and of Global Neuronal Workspace Theory69 derived from Baars’ Global Workspace Theory70. In this last panel, changes in cortical rhythms and information flow directionality are highlighted. Details of each panel content are provided in the related manuscript section.