...cruel works Of many Wheels I view, wheel without wheel, with cogs tyrannic, Moving by compulsion each other; not as those in Eden, which, Wheel within wheel, in freedom revolve, in harmony and peace.
They have the impression that contemporary cognitive psychology with its computer simulations of mind is onto something new and scientific that was at best only dimly foreshadowed in earlier psychologies. My purpose is to argue the contrary. A big part of contemporary cognitive science is pretty much what you would expec to get if Sigmund Freud had a computer.
Brentano taught Freud the doctrine of the unity of self. Freud did not believe it. According to Freud what produces action is not a unified self, but a collection of agents. The self is a collective fiction, like the government....The homuncular agents differ in their desires and preferences. The actions of the person reveal a social choice, in something like Arrow's sense, determined from the preferences of the component agents by causes, by forces, rather than by voting procedures.
The strategy is just the one Dennett describes, save that in an obvious sense Freud's homunculi need not be in the least stupider than the person they compose. If rationality is consistency of preference, then Freud's homunculi are more rational than persons. We may be equivocal, self-deceptive, suffer weakness of will, have inconsistent desires, but on Freud's account the homunculi within us need not.
In Freud's case none of the homuncular agents (save perhaps on some occasions the ego) are exclusively responsible for any action of the individual, and so this rather standard conception of agency does not straightforwardly apply. It does apply, more or less, if we socialize it. Roughly, what makes a system of beliefs and desires an agent is that they collaborate in almost every circumstance; they represent a vote in the society of mind, a society in which, to be sure, not all votes are equal. A collection of beliefs and desires forms a homuncular agent if the beliefs and desires are consistent and rationally combined to form preferences that are accommodated in the social determination of collective preferences and in the consequent determination of action by the whole individual.
Freud's materialism entailed the theory of 'psychical determinism', that is, Freud believed that if the mind is identical to a physical object - the brain - then mental events must be nomologically ordered just as all material events are. This doctrine was deeply antagonistic to the voluntarist beliefs promulgated by post-Kantian idealists and Romantic philosophers which later found expression in the writings of the existentialists. Indeed, well into the twentieth century Freud was criticized for denying agent causation (e.g., Sartre, 1943).
Freud's desire to subsume his psychology under the umbrella of natural science, a desire stemming from his allegiance to Mach's doctrine of the unity of science, ran contrary to the dualistic epistemological zeitgeist. This epistemological dualism was nested within an ontological dualism that was virtually taken for granted by the educated German-speaking public; from this vantage point, Freud's monism was regarded as deeply counter-intuitive.
Freud's psychology of unconscious mental processes was, as Glymour (1991) and Erdelyi (1985) have claimed, an early form of cognitivism, a theoretical movement conventionally regarded as having been initiated by the publication of Neisser's Cognitive Psychology (1967).