One of the major challenges facing science of consciousness today is to provide an explanatory framework that accounts for both the subjectivity and neurobiology of consciousness, which is triggered by the difficult problem of consciousness. According to Varela’s neurophenomenology, conscious expericences are the products emerging from the activity of large-scale neural assemblies in brain, and neural phase synchronization is one of its forms. Subjectivity determines that the study of consciousness must integrate first person- and third person methods, so as to enable the relationship between subjective- and objective datas to become a reciprocal constraint.