4 Conclusion

While Kühle’s comments are greatly appreciated, they show how important dialogue between the different disciplines involved in studying consciousness really is. Neuroscience, psychology, and philosophy are all connected in their quest for a better understanding of the true nature of consciousness and its underlying physiology. They depend on each other to formulate predictions based on theory, and to test and reappraise these on the grounds of cause-and-effect relationships established through experimental testing. Experimental research rests upon certain assumptions that may not or may only fractionally apply to philosophy. The most important assumptions of dream science are to consider it true that there exists a real world (1), that REM sleep dreams exist (2), that healthy awake humans are able to make valid statements about knowing and feeling (3), and that restrictions to this ability (e.g., sleep inertia) can be reliably identified (4).