Abstract

Based on the wealth of scientific evidence and concepts, this theory has been formed, and its essence is as follows: 1. From the physical properties of the mind and those of the brain (the alive, processing brain), it can be concluded that the mind occurs, exists, and functions with the brain (Chapter 1) and that it is the composite of all neural information-processing processes (Chapter 2). 2. Qualia—mental phenomena that appear phenomenally in our mind and that we can consciously experience, such as the vision of a house, the sound of a song, and the odor of a rose in our mind—are physical phenomena. They are governed by physical laws and are physically predictable. Specifically, they are neural-process–associated physical phenomena. (Chapters 3 & 4) 3. From the physical properties of qualia and those of special kinds of neural-process signaling patterns, which are neural information and non-material, it can be concluded that qualia are special kinds of neural-process signaling patterns, called special signaling patterns. (Chapter 5) 4. From the physical properties of consciousness and those of a special kind of reentrant signaling state, which is the neural information of the consciousness neural process and is non-material, it can be concluded that consciousness is a special kind of reentrant signaling state. 5. The fact that qualia and conscious awareness and conscious experiences of the qualia occur in only the final-stage sensory perception neural processes and the highest-level cognitive and executive neural processes, which are the latest-evolved neural processes, and never occur in the more primitive neural processes, such as the brainstem, cerebellum, and basal ganglia, or over the whole brain randomly, indicates that they are not haphazardly occurring phenomena but are evolved phenomena of the nervous system. (Chapter 5 & Chapter 6) 6. Because a neural process that performs a certain function (such as perceiving a vision) without a quale occurring and a neural process that performs that same function (such as perceiving the same vision) with a quale occurring have different information in the processes, they have different signaling patterns (to convey different information). Therefore, they have different physical effects on other neural processes, at least from the different effects of different signaling patterns. Qualia thus have physical effects. Also, because we do have conscious awareness and conscious experiences of qualia, qualia must certainly induce the consciousness neural process to function to be consciously aware of and to consciously experience the qualia. Therefore, because the consciousness neural process is a physical process, qualia cause changes in a physical process and thus have physical effects. (Chapter 5) Similarly, it can be concluded that consciousness (conscious awareness and conscious experiences) has physical effects. (Chapter 6) Therefore, qualia and consciousness are evolved neural functions that have physical effects. 7. Because a function requires resources in building, maintaining, and operating the function and may have some negative effects, if its overall effects do not help increase the survival chances of the animals that have the function, those animals and the function will likely become extinct in the evolutionary process. This is especially true for a major function in a critical organ, such as in the case of qualia and consciousness in the brain. The fact that qualia and consciousness still exist today indicates that they have been selected to remain in the evolutionary process. This means that their overall effects must help increase the survival chances of the species that have them. Qualia and consciousness, in the form that they are—phenomenal qualia and phenomenal consciousness, or qualia and consciousness that appear phenomenally in our mind—are thus evolved functions to help increase the survival chances of the species, including humans, that have them. This is the scientific answer to the other part of the hard problem of consciousness: Why do qualia and consciousness in the form of phenomenal qualia and phenomenal consciousness occur in this universe? This is also the scientific answer to one of the most basic questions of our lives: Why do “we” exist? (Chapter 5 & Chapter 6)