The Criterion of Mental and Non-Mental Adjustments

このQ&Aのポイント
  • Learn about the criterion of mental and non-mental adjustments and its observation points.
  • The criterion is not rigidly exclusive of either mental or non-mental character in adjustments.
  • It is important to guard against defying the presence of mind to agents that are really mental.
回答を見る
  • ベストアンサー

和訳お願い致します。

Two points have to be observed with regard to this criterion, in whichever verbal form we may choose to express it. The first is that it is not rigidly exclusive either, on the one hand, of a possibly mental character in apparently non- mental adjustments, or, conversely, of a possibly non-mental character in apparently mental adjustments. For it is certain that failure to learn by individual experience is not always conclusive evidence against the existence of mind; such failure may arise merely from an imperfection of memroy, or from there not being enough of the mind-element present to make the adjustments needful to meet the novel circum stances. Conversely, it is no less certain that some parts of our own nervous system, which are not concerned in the phenomena of consciousness, are nevertheless able in some measure to learn by individual experience. The nervous apparatus of the stomach, for instance, is able in so con siderable a degree to adapt the movements of that organ to the requirements of its individual experience, that were the organ an organism we might be in danger of regarding it as dimly intelligent. Still there is no evidence to show that non-mental agents are ever able in any considerable measure thus to simulate the adjustments performed by mental ones ; and therefore our criterion, in its practical application, has rather to be guarded against the opposite danger of defying the presence of mind to agents that are really mental For, as I observed in " Animal Intelligence," " it is clear that long before mind has advanced sufficiently far in the scale of development to become amenable to the test in question, it has probably begun to dawn as nascent subjectivity. In other words, because a lowly organized animal does not learn by its own individual experience, we may not therefore con clude that in performing its natural or ancestral adaptations to appropiate stimuli, consciousness, or the mind-element, is wholly absent ; we can only say that this element, if present, reveals no evidence of the fact. But, on the other hand, if a lowly organized animal does learn by its own individual experience, we are in possession of the best available evi dence of conscious memory leading to intentional adaptation. Therefore, our criterion applies to the upper limit of non- mental action, not to the lower limit of mental[action]''.

  • 英語
  • 回答数1
  • ありがとう数1

質問者が選んだベストアンサー

  • ベストアンサー
  • Nakay702
  • ベストアンサー率80% (9708/12074)
回答No.1

以下のとおりお答えします。 なお、(語句の区切りの間違いは別として)、次の2語は、→の後に示した語の誤植と見て訳しました:memroy (→memory), appropiate (→appropriate)。 この基準に関して2点を述べなければなりません。それを表現するためには、どちらの言語形式を選んでもよいでしょう。第1の点は、こうです。それは外見上非精神的な適応における可能性としての精神的特徴を持つことについて、あるいは逆に、外見上精神的な適応における可能性としての非精神的特徴を持つことについて、相互に厳格なまでに排他的というほどではない、ということです。 それゆえに、個的経験によって学習し損なうことが、必ずしも心の存在を否定する確証になるとは限らない、ということは確かです。そのような失敗は、単に記憶の欠陥から発生するかもしれません。あるいは、新しい環境に見合うのに必要な適応をするための心的要素の存在が十分でないことから発生するかもしれません。 反対に、私たち自身の神経系のいくつかの部分は、意識現象に関係していないにも拘わらず、個的経験によって学習することがある程度できることは、少なからず確かです。例えば、胃の神経器官は、その個的経験の要請に対してかなりの程度胃の動作に適応できるので、胃器官が有機体であるとすれば、それをあまり知的でないとみなすのは危険かもしれません。 今のところまだ、非精神的な作用因が、精神的な作用因によって行なわれる適応行為をある程度同じようにシミュレート(模擬遂行)する能力を持つことを示す証拠はありません。したがって私たちの基準は、その実際的応用の場面で、真に精神的である作用因に対する心の存在を無視するという逆の危険に抗して、むしろ保護しなければなりません。なぜなら、私が『動物の知能』で観察したとおり、「かなり以前、心を問題の試験に耐え得るようにする開発の度合いで十分遠くに進んだこと、おそらくそれは発生期の主体性として現れ始めること、が明らかであるからです。 言い換えれば、有機化度の低い動物はそれ自身の個的経験によって学習しないので、適切な刺激、意識あるいは心的要素に対して、それが本来具有するかあるいは祖先から伝来する適応性能を実行してみる際に、それがまったく不在であるとは結論できないでしょう。この要素は、もし存在する場合でも、事実の証拠を顕示しない、と言うことができるに過ぎません。 しかし他方では、もしも有機化度の低い動物がそれ自身の個的経験によって学習するならば、私たちは意図的な適応に結びつくような意識的記憶に関する利用可能な最良の証拠を所有することになります。したがって、私たちの基準は、精神〔活動〕の下限というより、非精神的活動の上限に当てはまる、ということになるわけです。」 以上、ご回答まで。

mangifera
質問者

お礼

ありがとうございます。

関連するQ&A

  • 和訳お願い致します。

    Without, therefore, entertaining the question as to the connexion between Body and Mind, it is enough to say that under any view concerning the nature of this connexion, we are justified in drawing a distinction between activities which are accompanied by feelings, and activities which, so far as we can see, are not so accompanied. If this is allowed, there seems, to be no term better fitted to convey the distinction than the term Choice ; agents that are able to choose their actions are agents that are able to feel the stimuli which determine the choice. Such being our Criterion of Mind, it admits of being otherwise stated, and in a more practically applicable manner, in the following words which I quote from " Animal Intelli gence :" — " It is, then, adaptive action by a living organism in cases where the inherited machinery of the nervous system does not furnish data for our prevision of what the adaptive action must necessarily be — it is only here that we recognize the objective evidence of mind. The criterion of mind, therefore, which I propose, and to which I shall adhere throughout the present volume, is as follows : — Does the organism learn to make new adjustments, or to modify old ones, in accordance with the results of its own individual experience ? If it does so, the fact cannot be merely due to reflex action in the sense above described ; for it is impossible that heredity can have provided in advance for innovations upon or alterations of its machinery during the lifetime of a particular individual".

  • 和訳お願い致します。

    The other point which has to be noted with regard to this criterion is as follows. I again quote from " Animal Intelligence :"— " Of course to the sceptic this criterion may appear un satisfactory, since it depends, not on direct knowledge, but on inference. Here, however, it seems enough to point out, as already observed, that it is the best criterion available ; and, further, that scepticism of this kind is logically bound to deny evidence of mind, not only in the case of the lower animals, but also in that of the higher, and even in that of men other than the sceptic himself. For all objections which could apply to the use of this criterion of mind in the animal kingdom, would apply with equal force to the evidence of any mind other than that of the individual objector. This is obvious, because, as I have already observed, the only evi dence we can have of objective mind is that which is furnished by objective activities ; and, as the subjective mind can never become assimilated with the objective so as to learn by direct feeling the mental processes which there accompany the objective activities, it is clearly impossible to satisfy any one who may choose to doubt the validity of inference, that in any case, other than his own, mental processes ever do accompany objective activities.

  • 和訳お願い致します。

    Or, again adopting the convenient terminology of Clifford, we must always remember that we can never know the mental . states of any mental beings other than ourselves as objects ; we can only know them as ejects^ or as ideal projections of our own mental states. And it is from this broad fact of psycho logy that the difficulty arises in applying our criterion of mind to particular cases — especially among the lower animals. For if the evidence of mind, or of being capable of choice, must thus always be ejective as distinguished from objective, it is clear that the cogency of the evidence must diminish as we recede from minds inferred to be like our own, towards minds inferred to be not so like our own, passing in a gradual series into not-minds. Or, otherwise stated, although the evidence derived from ejects is practically regarded as good in the case of mental organizations inferred to be closely analogous to our own, this evidence clearly ceases to be trust worthy in the ratio in which the analogy fails ; so that when we come to the case of very low animals — where the analogy is least — we feel uncertain whether or not to ascribe to them any ejective existence. But I must again insist that this fact — which springs immediately but of the fundamental isolation of the individual mind — is no argument against my criterion of mind as the best criterion available; it [it=the fact] tends, indeed, to show that no better criterion can be found, for it shows the hopelessness of seeking such.

  • 和訳お願い致します。

    It is, then, adaptive action by a living organism in cases where the inherited machinery of the nervous system does not furnish data for our prevision of what the adaptive action must necessarily be — it is only in such cases that we recognize the element of mind. In other words, ejectively con sidered, the distinctive element of mind is consciousness, the test of consciousness is the presence of choice, and the evidence of choice is the antecedent uncertainty of adjustive action between two or more alternatives. To this analysis it is, however, needful to add that, although our only criterion of mind is antecedent uncertainty of adjustive action, it does not follow that all adjustive action in which mind is con cerned should be of an antecedently uncertain character; or, which is the same thing, [it does'nt follow] that because some such action may be of an antecedently certain character, we should on this account regard it as non-mental. Many adjustive actions which we recognize as mental are, nevertheless, seen before hand to be, under the given circumstances, inevitable ; but analysis would show that such is only the case when we have in view agents whom we already, and from independent videuce, regard as mental.

  • 和訳お願い致します。

    It is obvious, then, to start with, that by Mind we may mean two very different things, according as we contemplate it in our own individual selves, or as manifested by other beings. For if I contemplate my own mind, I have an imme diate cognizance of a certain flow of thoughts and feelings, which are the most ultimate things — and, indeed, the only things— of which I am cognizant. But if I contemplate Mind in other persons or organisms, I can have no such immediate cognizance of their thoughts and feelings ; I can only infer the existence of such thoughts and feelings from the activities of the persons or organisms which appear to manifest them. Thus it is that by Mind we may mean either that which is subjective or that which is objective. Now throughout the present work we shall have to consider Mind as an object ; and therefore it is well to remember that our only instrument of analysis is the observation of activities which we infer to be prompted by, or associated with, mental antecedents or accompaniments analogous to those of which we are directly conscious in our own subjective experience. That is to say, starting from what I know subjectively of the operations of my own individual mind, and of the activi ties which in my own organism these operations seem to prompt, I proceed by analogy to infer from the observable activities displayed by other organisms, the fact that certain mental operations underlie or accompany these activities.

  • 和訳お願い致します。

    Now in this necessarily ejective method of enquiry, what is the kind of activities that we are entitled to regard as indicative of mind ? I certainly do not so regard the flowing of a river or the blowing of a wind. Why ? First, because the subjects are too remote in kind from my own organism to admit of my drawing any reasonable analogy between them and it; and, secondly, because the activities which they present are invariably of the same kind under the same circumstances : they therefore offer no evidence of that which I deem the distinctive character of my own mind as such — Consciousness. In other words, two conditions require to he satisfied before we even begin to imagine that observable activities are indicative of mind ; the activities must be dis played by a living organism, and they must be of a kind to suggest the presence of consciousness. What then is to be taken as the criterion of consciousness ? Subjectively, no criterion is either needful or possible ; for to me, individually, nothing can be more ultimate than my own consciousness, and, therefore, my consciousness cannot admit of any criterion having a claim to a higher certainty. But, ejectively, some such criterion is required, and as my consciousness cannot come within the territory of a foreign consciousness, I can only appreciate the latter through the agency of ambassadors — these ambassadors being, as I have now so frequently said, the observable activities of an organism. The next question, therefore, is, What activities of an organism are to be taken as indicative of consciousness ? The answer that comes most readily is, — All activities that are indicative of Choice; wherever wo see a living organism apparently exerting inten tional choice, we may infer that it is conscious choice, and, therefore, that the organism has a mind. But physiology shows that this answer will not do ; for, while not disputing whether there is any mind without the power of conscious choice, physiology, as we shall see in the next chapter, is very firm in denying that all apparent choice is due to mind.

  • 和訳お願い致します。

    In actual research these three objects are prosecuted, not successively, but simultaneously. Thus it is not necessary in either case that the final object — that of classification- should wait for its commencement upon the completion of the dissection or analysis of every organism or every mental structure that is to be found upon the earth. On the con trary, the comparison in each case begins with the facts that are first found to be comparable, and is afterwards pro gressively extended as knowledge of additional facts becomes more extensive. * The word " structure " is used in a metaphorical sense when applied to mind, but the usage it convenient.

  • 和訳お願い致します。

    From this statement of the case it will be apparent that our knowledge of mental activities in any organism other than our own is neither subjective nor objective. That it is not subjective I need not wait to show. That it is not objective* may be rendered obvious by a few moments' reflec tion. .For it is evident that mental activities in other organisms can never be to us objects of direct knowledge ; as I have just said, we can only infer their existence from the objective sources supplied by observable activities of such organisms.. Therefore all our knowledge of mental activities other than our own really consists of an inferential inter pretation of bodily activities — this interpretation being founded on our subjective knowledge of our own mental activities. By inference we project, as it were, the known patterns of our own mental chromograph [chromograph=chromolithograph] on what is to us the otherwise blank screen of another mind ; and our only knowledge of the processes there taking place is really due to such a projection of our own subjectively. This matter has been well and clearly presented by the late Professor Clifford, who has coined the exceedingly appropriate term eject (in contradistinction to subject and object), whereby to designate the distinctive character of a mind (or mental process) other than our own in its relation to our own. I shall therefore adopt this convenient term, and speak of all our possible knowledge of other minds as ejective.

  • 和訳お願い致します。

    Now assuredly we have here a most important issue, and as it is one the discussion of which will constitute a large element of my work, it is perhaps desirable that I should state at the outset the manner in which I propose to deal with it . The question, then, as to whether or not human intelli gence has been evolved from animal intelligence can only be dealt with scientifically by comparing the one with the other, in order to ascertain the points wherein they agree and the points wherein they differ. Now there can be no doubt that when this is done, the difference between the mental faculties of the most intelligent animal and the mental faculties of the lowest savage[savage=wild beast] is seen to be so vast, that the hypothesis of their being so nearly allied as Mr. Darwin's teaching implies, appears at first sight absurd. And, indeed, it is not until we have become convinced that the theory of Evolution can alone afford an explanation of the facts of human anatomy that we are prepared to seek for a similar explanation of the facts of human psychology. But wide as is the difference between the mind of a man and the mind of a brute, we must remember that the question is one, not as to degree, but as to kind ; and therefore that our task, as serious enquirers after truth, is calmly and honestly to examine the character of the difference which is presented, in order to determine whether it is really beyond the bounds of rational credibility that the enormous interval which now separates these two divisions of mind can ever have been bridged over, by numberless inter mediate gradations, during the untold ages of the past.

  • 和訳お願い致します。

    The host of reflex actions is arrayed against the proposition, and, in view of such non-mental, though apparently intentional adjustments, we find the necessity for some test of the choice- element as real or fictitious. The only test we have is to ask whether the adjustments displayed are invariably the same under the same circumstances of stimulation. The only distinction between adjustive movements due to reflex action, and adjustive movements accompanied by mental perception, consists in the former depending on inherited mechanisms within the nervous system being so constructed as to effect particular adjustive movements in responso to particular stimulations, while the latter are independent of any such inherited adjustment of special mechanisms to the exigencies of special circumstances. Reflex actions, under the influence of their appropriate stimuli, may be compared to the actions of a machine under the manipulations of an operator : when certain springs of action are touched by certain stimuli, the whole machine is thrown into appropriate action ; there is no room for choice, there is no room for uncertainty ; but, as surely as any of these inherited mechanisms is affected by the stimulus with reference to which it has been constructed to act, so surely will it act in precisely the same, way as it always has acted. But the case with conscious mental adjust ment is quite different. For, without going into the question concerning the relation of Body and Mind, or waiting to ask whether cases of mental adjustment are not really quite as mechanical in the sense of being the necessary result or correlative of a chain of psychical sequences due to a physical stimulation, it is enough to point to the variable and incalcu lable character of mental adjustments as distinguished from the constant and foreseeable character of reflex adjustments.All in fact, that in an objective sense we can mean by a mental adjustment, is an adjustment of a kind that has not been definitely fixed by heredity as the only adjustment possible in the given circumstances of stimulation. For, were there no alternative of adjustment, the case, in an animal at least, would be indistinguishable from one of reflex action.