More from Bissell’s paper on “dual-aspect” metaphysics:
Quote
It is true that we are unable to view the mental aspect of brain processes by extrospection, just as we are unable to grasp the physical aspect of brain processes introspectively. We shall never be able to do these things, any more than we could every see the length of a table with our hands, or feel the length of a table with our eyes.
Yet, just as a child identifies seen length with felt length, through a combination of evidence and (at least implicit) reasoning, so too does the Dual-Aspect theory propose that we identify mental processes and physical brain processes (though by a more explicit reasoning process). The common factor here is the presence of data which are correlated across different cognitive modes, and the decision to economize by regarding the data as coming from a single source.
…
It is these special circumstances which suggest that only within the past century or less has the possibility of a mental-physical Dual-Aspect theory, and the ontological parsimony it provides, seemed a scientifically and philosophically tenable alternative to the traditional Interactionist and reductionist theories.
…
The reason why a single process can be presented to our awareness in two forms so radically different is provided by the Dual-Aspect theory. In the one case, we see its mental aspect, because we are apprehending it through introspection; and in the other case, we see its physical aspect, because we are apprehending it extrospectively. [24] Since, however, the mental process and the physical process are the same process, and in that sense are identical, we are aware of the same unique process in both cases.
Dual-aspect as against eliminativist reductionism:
Quote
The reductive materialists seek above all to deny the reality of anything other than “matter” (material entities) and actions and interrelationships thereof. As such, they maintain that spiritual or mental phenomena do not really exist, that they are illusory, mere appearance, a distortion, etc.; and that what appears to be a mental phenomenon is really nothing but a physical phenomenon. They seek to strip away the illusory, to shrink or reduce our view of reality so that it excludes the realm of mental or spiritual “appearances.” [20]
As a logical corollary, the reductionists also seem to obliterate the distinction between different species of physical brain processes. Since there is no real basis upon which to distinguish certain brain processes from other brain processes (except the “unreal appearance” of their being “mental”), the reductionists have reduced the number of conceptual classifications we must retain when thinking about brain processes. They have said there is not really a separate group of brain processes that we call “mental processes.” We are mistaken if we fail to realize that they are really nothing but brain processes. [21]
…
First, the Dual-Aspect theory holds that mental processes are actually certain physical brain processes as we are aware of them introspectively, i.e., that “mental” refers to the fully real, introspectable aspects of those particular physical brain processes. Our awareness of them is the form in which we are aware of certain brain processes introspectively, just as our awareness of the physical aspects is the form in which we are aware of those brain processes extrospectively.
It has been the error of reductionists to grant a cognitively monopoly to extrospection. In correcting this error, we must realize that one must be aware of reality (viz., brain processes) in some form, but may be aware of reality in any form (and not just some one particular form exclusively). [22] Just as both visual perception and tactual perception are different but equally valid forms for apprehending real aspects of entities (such as their length), which can be correlated with one another, so too the Dual-Aspect theory maintains, are extrospection and introspection different but equally valid forms for apprehending real aspects of brain processes.
Secondly, the Dual-Aspect theory holds that mental processes are actually mental physical brain processes. As such they are not merely nothing but physical brain processes, but rather physical brain processes of a certain special kind, distinguished from all other physical brain processes by virtue of their introspectable, mental aspect. Since this mental aspect is a real aspect of those brain processes, it provides a valid basis for making the distinction, a basis derived from reality.
Thus it is that the Dual-Aspect theory avoids the stigma of reductionism. Even as it insists that mental processes are actually physical processes, it equally steadfastly denies that they are nothing but physical processes. The Dual-Aspect theory is thus basically opposed not only to traditional anti-reductionist alternatives, but to reductionism as well.
…
People who reject the identity of mental processes with physical brain processes often do so because such a Dual-Aspect or Identity theory seems to entail reductive materialism. Admittedly, such materialists do maintain some sort of Dual-Aspect or Identity theory, but that is not the essential part of their theory. The component of reductive materialism distinguishing it from the Dual-Aspect theory is its view that anything other than physical aspects of reality is unreal, particularly, mental aspects. This, together with the consequent rejection of introspection as a valid means of knowing reality, is its essential characteristic.
Lastly his take on free will:
Quote
The doctrine of free will maintains that man is capable of himself causing certain actions, no antecedent conditions being sufficient for his causing just that action. What this means is that man’s will allows him to cause certain actions (or make certain choices) without anything else external or internal causing him to do so. [31]
“Free will,” thus formulated, appears to be simply the principle present in all living organisms–namely, the principle of self-generated (self-caused) actions–as found on the level of self-conscious human beings. All living organisms are self-determining and in this sense are “free;” but only man has a will, so only man’s self-determination may properly be referred to as the possessing of “free will.”
The difference between man and the lower animals is not that man alone is self-determining. All living beings are self-determining; i.e., all living beings generate their own actions themselves. Man’s distinction in this respect is that he is self-determining psychologically.
Man has the ability, by virtue of his capacity for self-awareness (introspection) to integrate his consciousness into the top of his organismic hierarchy, allowing it to be more than just an automatic system of signals of danger and safety, pain and well-being, etc. With the awareness of future consequences and alternatives, with the awareness that he is a being who can weigh the alternatives and choose the one he thinks best, a man’s consciousness becomes subject to his control. he is able to use it actively, instead of automatically responding to its data.