1 Wittgenstein and Merleau-Ponty on Gestalt Psychology1
Katherine J. Morris
Most famous for their researches on perception (and visual perception in particular), the Gestalt psychologists developed their theories, mainly in Germany, over roughly the same period as Husserl was developing phenomenology, and to some degree in dialogue with Husserl;2 this was also the period of Wittgensteinâs âearlyâ philosophy. Both Wittgenstein (in his âlaterâ period)3 and Merleau-Ponty (throughout his philosophical career) engaged directly with Gestalt psychology. Wittgenstein read rather little, although things that interested him for whatever reason he read in great depth. This category includes Köhlerâs Gestalt Psychology (1947, hereafter GP),4 to which Wittgenstein came late in his career;5 he discussed Köhler extensively in his last lectures in 1947 (studentsâ notes on these lectures are published as Lectures on Philosophical Psychology 1946â7).6 Schulte goes so far as to say that GP âwas the single most important influence on Wittgenstein during those yearsâ (1993: 76). Wittgensteinâs Köhler period was roughly contemporaneous with Merleau-Pontyâs Phenomenology of Perception. Merleau-Ponty was much more of a typical academic than Wittgenstein; he read widely in the psychology of his day, and he regularly characterised Gestalt psychology as âthe new psychologyâ, as opposed to the empiricist and intellectualist psychology that had dominated previously.
Because Köhler is the main common denominator in their reading about Gestalt psychology, all of the references to Gestalt psychology in this essay will be to Köhler and most to the book Gestalt Psychology. I will focus on Wittgensteinâs and Merleau-Pontyâs critiques of Gestalt psychologyâs descriptions of the perceived world.7 At first sight, Wittgensteinâs and Merleau-Pontyâs responses to these descriptions seem almost diametrically opposed. Wittgenstein was clearly intrigued by some of the phenomena to which the Gestalt psychologists drew attention but thought their descriptions of these phenomena confused. Merleau-Ponty, by apparent contrast, refers to the Gestalt psychologists as âthe very psychologists who described the world as I didâ (PrP 23); his primary objection is Gestalt psychologyâs failure to see the revolutionary consequences of its own discoveries. I will ultimately suggest that this appearance of diametrical opposition is misleading. Section 1 outlines GPâs descriptions of the perceived world. Sections 2 and 3 bring out Wittgensteinâs and Merleau-Pontyâs principal objections.8 Section 4 tries to bring Wittgenstein and Merleau-Ponty into dialogue with one another. The final section (5) reflects on this dialogue by way of drawing a few conclusions.
1. Gestalt Psychologyâs Descriptions of the Perceived World
A great deal of GP is polemical, arguing against two strands of empiricist psychology, which then dominated the field: behaviourism (about which I can say no more in the present context) and what was known as introspectionism, whose basic premise is âthe all-important distinction between sensations and perceptions, between the bare sensory material as such and the host of other ingredients with which this material has become imbued by processes of learningâ (GP 43). On this view, the sensation is âthe genuine sensory factâ, by contrast with those âmere products of learningâ (GP 44). When we add to this move a bit of basic information about physics, optics, and the physiology of seeing, it can seem irresistible to assert that the âgenuine sensory factâ causally depends solely on the image on the retina, and that everything else we say we see isnât strictly speaking seen, since it brings in further knowledge. Note, just for example, that this would imply that we cannot strictly speaking see depth (distance, three-dimensionality), since the image on the retina is two-dimensional.
Gestalt psychologyâs conception of perception stands in sharp contrast to this. The most basic notion in Gestalt psychology is that of organisation, which, Köhler argues (GP 81), empiricism cannot accommodate.
This term âorganisationâ points us in the direction of what the Gestalt psychologists call âcircumscribed unitsâ: âIn most visual fields the contents of particular areas âbelong togetherâ as circumscribed units from which their surroundings are excludedâ (GP 80â1), for example, âthings: a piece of paper, a pencil, an eraser, a cigarette, and so forthâ (GP 81).9 âGestaltenâ include both these segregated units and âgroupingsâ of such units: âa given unit may be segregated and yet at the same time belong to a larger unitâ (GP 84; cf. GP 95, 120). For instance, in Figure 1.1, each patch is itself a segregated unit, but the patches are also grouped into two groups of three patches each, as âeveryone beholdsâ (GP 83).
The groups consist of the three on the left and the three on the right, even though they could equally just be six patches, or the two groups consisting of the three on top and the three below, etc.
Of particular interest to Wittgenstein are what the Gestalt psychologists call âreversalsâ in ambiguous figures (i.e., figures which spontaneously admit of different organisations). Consider Figure 1.2: whereas we might at first see âan object formed by three narrow sectorsâ, we may âsuddenly see another pattern. Now the lines which belonged together as boundaries of a narrow sector are separated; they have become boundaries of large sectors. Clearly, the organisation of the pattern has changedâ (GP 100). Thus (pace the introspectionists) â[w]ith a constant pattern of [retinal] stimuli, we may see ⊠two different shapesâ (GP 107).
Of especial importance to the phenomenologists are various characteristics of gestalten, especially those characteristics that contribute to the unity of the gestalt. According to the Gestalt psychologists, perceived objects maintain their apparent size, shape, colour, etc.âand hence their unityâthrough variations in distance, orientation, lighting, and so on. Hence they will speak of various âconstanciesâ: âsize constancyâ, âshape constancyâ, âcolour constancyâ, and so on. (Note that the introspectionists cannot allow such constancies, since, for example, the projection of a circular object such as a plate on the retina will vary in shape if the object is tilted.) Also important to the phenomenologists are such essential characteristics of gestalten as figure-ground structure (which, again, is impossible for the introspectionists to accommodate). A âcircumscribed unitâ (the figure) is segregated from its surroundings (the ground), the figure having âthe character of solidity or substantialityâ, the ground being âloose or emptyâ and âunshapedâ (GP 120). (Figure 1.2 above displays a figure-ground ambiguity: as long as we are seeing the cross with the slender arms, the area of the cross with the wider arms âis absorbed into the background, and its visual shape is non-existentâ, (GP 107); in addition, âthe oblique lines are the boundaries of the shapes which are seen at the timeâ, i.e., in this case they âbelong toâ the slender cross, (GP 108, etc.) )
2. Wittgensteinâs Criticisms of Köhlerâs Descriptions
Wittgensteinâs best-known discussion of the Gestalt psychologistsâ descriptions occurs in his treatment of âaspect-seeingâ in PI II §xi.10 His initial focus is on âreversalsâ of ambiguous figures; Wittgenstein reproduces a number of such figures, including most famously the âduck-rabbitâ (from Jastrow 1899), but also the âdouble crossâ (PI II 207), which is similar to Figure 1.2 above. Wittgenstein speaks of the different organisations of these figures as âaspectsâ and of reversals as âchanges of aspectâ. What appears to strike Wittgenstein about reversals is a kind of paradox, which he expresses thus: âOne would like to say: âSomething has altered, and nothing has alteredâ â (RPP I §966).11 This âparadoxâ is essential to a change of aspect.
W1. Two (or Three?) Uses of the Word âSeeâ
Wittgenstein is as resistant as Köhler to the empiricist temptation to say we donât (strictly speaking) see aspects: âif someone wanted to correct me and say I donât really see [these things, but only shapes and colours], I should hold this to be a piece of stupidityâ (RPP I §1101).12 Wittgensteinâs central objection to Köhler is that he supposes that we see organisation in the same sense that we see colour and shape (cf., e.g., RPP I §1023). Not only does this involve a conflation, it means that Köhler can neither express nor dissolve the âparadoxâ.
Köhlerâs view apparently implies that what one sees changes in a change of aspect in the same sense that what one sees would change were the colours and shapes to alter. (A change in organisation âamounts to an actual transformation of given sensory facts into othersâ (GP 99).) Wittgenstein clearly takes there to be a powerful temptation to say this (RPP I §534, cf. RPP I §535, §536, §1107). However, to give in to this temptation is to leave oneself unable to recognise the paradox which is of the essence of aspect change: there is no sense, in this case, in which everything remains the same. Wittgenstein claims that to âput the âorganisationâ of a visual impression on a level with colours and shapesâ is to proceed âfrom the idea of the visual impression as an inner objectâ (PI II 196); indeed this idea is commonly seen as the real target of these remarks.13 From this perspective, he imagines Köhler saying that the âouter pictureâ (e.g., the drawing of the duck-rabbit) has remained the same while the âinner pictureâ has changed. However, this would get him nowhere: one ought to be able to represent the âinner pictureâ with a drawing (an âouter pictureâ), since the notion of an inner picture is modelled on that of an outer picture; but if one tried to represent what the duck-rabbit was like before the change of aspect and what it is like now simply by making an exact copy of what one sees in each case, âno change is shewnâ (PI II 196; cf. RPP I §1041; PI I §196).
Wittgenstein asserts that the phenomena of aspect-seeing and change of aspect point to âthe difference of category between the two âobjectsâ of sightâ (PI II 193). Here, the two â âobjectsâ of sightâ are not the âbeforeâ and âafterâ of an aspect-change as they were for Köhler; rather, they correspond to â[t]wo uses of the word âseeâ â, which he exemplifies thus: â âI see thisâ (and then a description, a drawing, a copy)â as opposed to âI see a likeness between these two facesâ (PI II 193; cf. RPP I §964). How do these exemplars relate to changes of aspect? We have seen already that any attempt to represent the âbeforeâ and âafterâ in a change of aspect with a drawing or copy would show no difference; rather, one might (for example) convey the change by first grouping the drawing with a number of other drawings of ducks, and then with a number of drawings of rabbits (cf. PI II 196â7),14 and drawing attention to the likenesses in each case. Once we have distinguished these two uses of the word âseeâ, the apparent paradox vanishes: what you see in the first use of the word âseeâ does not change, whereas what you see in the second use changes.
Importantly, the distinction, or at least some distinction, between different uses of the word âseeâ has application beyond the rather special case of ambiguous pictures, even if other cases do not involve the âparadoxâ; since all perceived objects (not just pictures, much less just ambiguous pictures) are, according to the Gestalt psychologists, organised, many of the same issues arise for figure-ground organisation, three-dimensionality and so on. Wittgenstein clearly recognises this; thus RPP I §1023 reflects on Köhlerâs commitment to the idea that âobjectâ (figure) and âgroundâ are âvisual concepts like red and roundâ (cf. RPP I §1118: âIndeed, you may well say: what belongs to the description of what you see, of your visual impression, is not merely what the copy shews but also the claim, e.g., to see this âsolidâ, this other âas intervening spaceâ â). Wittgenstein suggests that if one were to ask what, in a drawing, âcorresponded to the words âobject-likeâ â, the answer would be âthe sequence, the order, in which we made the drawingâ, which is surely not in the drawing in the sense that the colours and shapes are (RPP I §1023). Again, RPP I §85 considers the question of whether depth can âreally be seenâ; he goes on to suggest that the sense in which we see colour and shape and the sense in which we see depth are different senses, the one perhaps to be represented âusing a transparencyâ, the other âby means of a gesture or profileâ (cf. also RPP I §86).
It is not entirely clear whether the sense in which we see depth, or see a thing âas a thingâ or as âobject-likeâ, is the same as the sense in which we see aspects, thus it is not clear whether we should b...