Abstract
Unconscious processes have long been forgotten in neuroscientific field for their difficult objectification. Gradually, they have become a subject of investigation in cognitive neuroscience, that uncovers their importance in decision-making and behavior.
However, cognitive neuroscience research has difficulties to take into account the dynamics of unconscious processes, their affective valence and subjectivity. Current psychedelic research (research of altered states of consciousness induced by hallucinogens) attempts to consider these aspects as it uses neuroimaging methods together with the subjective testimonies of participants and thus represents a very promising tool for better understanding of the unconscious and conscious states of the human mind.