/tag/neurology

2 quotes tagged 'neurology'

Author: Paul John Eakin
Publisher: Cornell University Press (1999)

[Gerald] Edelman's approach to the brain and to the emergence of consciousness in [his books] is resolutely Darwinian - 'spirits and ghosts are out' (113). His Theory of Neural Group Selection (TNGS) or 'neural Darwinism' articulates his sense of the way in which the brains neural organization is constantly modified - both phylogenetically and ontogenetically - to adapt to the ever-changing demands of experience.


temporal development of the preconscious hypostases can be roughly divided into four phases: Phase I: Objective: Occurred in the bicameral age when these terms referred to simple external observations. Phase I I : Internal: Occurred when these terms have come to mean things inside the body, particularly certain internal sensations. Phase I I I : Subjective: W h e n these terms refer to processes that we would call mental; they have moved from internal stimuli supposedly causing actions to internal spaces where metaphored actions may occur. Phase I V : Synthetic: W h e n the various hypostases unite into one conscious self capable of introspection. The reason I am setting these out, perhaps pretentiously, as four separate phases is to call your attention to the important psychological differences of transition between these phases. The transition from Phase I to Phase II occurred at the beginning of the breakdown period. It comes from the absence or the inappropriateness of gods and their hallucinated directions. The buildup of stress for want of adequate divine decisions increases the psychological concomitants of such stress until they are labeled with terms that previously applied to only external perception. The transition from Phase II to Phase III is a much more 2 Professor A. D. H. Adkins has made this drawing-together of the various mind-words into one the theme of his book From the Many to the One (Ithaca: Cornell University Press, 1970). I N T E L L E C T U A L C O N S C I O U S N E S S O F G R E E C E 261 complicated matter. And much more interesting. It is due to the paraphrand generator of metaphor described in 1.2. In that chapter, I outlined the four-part process of metaphor, how we begin with a less-known term called a metaphrand which is to be described, and then describe it by applying to it a better-known metaphier which is similar to it in some way. Usually there are simple associations of the metaphier which I have called paraphiers, which then project back as associates of the original metaphrand, these new associates being called paraphrands. Such paraphrands are generative in a sense that they are new in their association with the metaphrand. And this is how we are able to generate the kind of 'space' which we introspect upon and which is the necessary substrate of consciousness. This is really quite simple as we shall see shortly. And, finally, the synthesis of the separate hypostases into the unitary consciousness of Phase IV is a different process also. I suggest that as the subjective Phase III meanings of thumos, phrenes, et al. become established, their original anatomical bases in different internal sensations wither away, leaving them to become confused and to join together on the basis of their shared metaphiers, e.g., as 'containers' or 'persons.' But this synthetic unity of consciousness may also have been helped by what can be called the laicization of attention and its consequent recognition of individual differences in the seventh century B.C., a process which resulted in a new concept of self.