vrijdag 28 december 2012

Zomaar een oudejaarsmijmering

Vroeger had je Zuiver Wetenschappelijk Onderzoek (ZWO) en Toegepast Natuurwetenschappelijk Onderzoek (TNO) en het was duidelijk wat voor soort onderzoek de twee instanties van die naam subsidiëerden buiten de normale academische budgets om. Samen werden ze vanaf zeker moment wel "de tweede geldstroom" genoemd. Misschien is het daarmee begonnen, want waar een tweede geldstroom bestaat is er ook een derde en misschien een vierde, enzovoort. Toepasbaarheid van een onderzoeksplan in de nabije toekomst strekte bij ZWO niet tot aanbeveling. Bij de universiteiten trouwens ook niet; als je dat wilde, dan ging je maar naar 'Delft', toen nog bekend als Technische Hogeschool (TH) Delft. Z was Z. Maar ZWO werd NWO, en TH werd TU, bedrijven kochten direct toepasbaar onderzoek bij de universiteiten (de zogenaamde derde geldstroom) en je was eigenlijk een beetje gek als je de gang van je onderzoek nog liet bepalen door pure weet- of nieuwsgierigheid naar hoe het zit. Je moest "geld binnenhalen", en bij het subfaculteitsbestuur werd het belang van je werk dááraan afgemeten.

Volgens Hilary en Steven Rose, in hun boek "Genes, Cells and Brains", zijn het nu bedrijven die de meeste macht hebben over wat onderzocht gaat worden. Ik hoop dat dat niet (helemaal) waar is, want ik houd van oprechte wetenschappelijke nieuwsgierigheid. Die koppeling van onderzoek aan direct gewin is misschien maar een symptoom. Wat willen we eigenlijk? Productie, productie, productie, of overleven op de lange termijn? Het is langzamerhand toch duidelijk dat dat niet allebei kan. Als we alsmaar gefixeerd blijven op het eerste is het eens op.

Maar dan verhuizen we toch gewoon naar een andere planeet", zult u wellicht zeggen. "De technologie die daarvoor nodig is kunnen we in huis hebben tegen dat het zover is". Nu, prima, ik wil niet onmodern overkomen. Maar dan geldt wel wat voor iedere verhuizing geldt: netjes achterlaten, geen onbewoonbaar krot. Gun de aarde, mocht het zover komen, een tweede leven.

zondag 2 december 2012

On Nelson's Beard and Ockham's Razor

A most sophisticated analysis of the song of a single bird was published by Keith Nelson in 1973 (1). If I am not mistaken, it has been surpassed only by the same author's study (1990) on singing structure in the European Song Thrush (2).

In the first-mentioned paper, Nelson breaks a lance for the use of non-linear models - as exemplified by coupled automata - in the study of complex behaviour of animals in general and song structure in particular. At the time, that was a revolutionary idea, which had been considered by very few ethologists indeed.

The relatively simple linear models, then commonly used, that Nelson referred to were Markovian and linear control systems. Considering the common occurrence of non-linear processes in living organisms, he wrote, such models can hardly be adequate. By applying them, one would fail to discover any more complex aspects of the object.

Why, then, did one use such models so often and with so much confidence? Nelson thought this was because scientists are deeply ingrained with rules of parsimony, in particular Ockham's Law, also called Ockham's Razor: Entia non sunt praeter necessitatem multiplicanda or in English: '[In explaining Nature] entities must not be multiplied beyond necessity'.

Ockham's Law is basic to science, but a too scrupulous adherence may have negative effects. Too often, according to Nelson, one begins with a simplest possible model, complicating it progressively as more and more peculiarities of the object come to be known, until the model becomes unwieldy and unnecessarily more complicated than a simple version of a more sophisticated model. This course of events has been called 'accommodation' by Piaget. "Simplex sigillum veri" (Simplicity is the stamp of the true), wrote Hermanus Boerhaave, but this is a misconception. Parsimony is a necessary instrument in the natural sciences, not because Nature should be simple, but in order to keep knowledge manageable and to help scientists communicate about it; and perhaps to gain control over matter. Hence: Simplex scientiae sigillum neque tamen veri (parsimony is a token of science, not of the true).

To find a proper name for the fact that the complex aspects of Nature tend to be overlooked if we study her with inadequately simple means, we may develop the metaphor of the Razor a little further. A common use of a razor is to keep a man's beard down to the surface of the chin. By doing so, we hide a number of small facts like the beard's detailed colours and shape; but above all we shall never discover what its role could be in the self-image and personality of its bearer. We are likely even to never ask this question!

I propose, then, as an homage to Keith Nelson's pioneering work in bird song and some other aspects of animal behaviour, to call this principle: "Nelson's Beard".

"Nelson's Beard" is not a negation of Ockham's Razor, but a necessary element in the balance that should be struck between it and the law of the medieval franciscan monk Willem van Ockham.

(1) K. Nelson 1973. Does the holistic study of behaviour have a future? In: P.P.G. Bateson & P.H. Klopfer (eds.) Perspectives in Ethology I. London, Plenum, pp. 281-328.

(2) K. Nelson 1990. Hierarchical Organisation, revisited. Neth. J. Zool. 40: 585-616.

maandag 19 november 2012

On sustainable Peace; a study in the theory of behavioural modes

What is Peace?

Can one define peace? Certainly it is much easier to define war. Let me try: war is an armed conflict between organised groups with the intention to win by any means. This definition may be unsatisfactory in some respects, viz. the size of the groups and their sort of organisation, definition of arms, and, for that matter, of winning; but it conveys the general idea. What about a definition of peace? Is peace the opposite of war? Or is it a state, or collection of states, without war? That, of course, will not do. The emphasis in our definition of war was on 'by any means'. How many means would one have to substract to get peace? And which means? That might be a question of taste, and it is no good to make defining peace a matter of taste. Moreover, it is poor philosophy to define things by mutual exclusion like: peace is absence of war; war is the absence of peace. Obviously, in that way one defines nothing at all.

In order to define it we will have to look at what peace is, not at what it is not. An 'anatomy of peace' is what we need to study and describe first. An immense task, for human behaviours and relationships are enormously varied and, if anything, more so in peace time than in war. War conditions constrict and stereotype people's responses; peace enriches and expands them towards more playfulness, more creativity and more love. I am not saying that war is the sole cause of such behavioural constriction; the same can be brought about, in times of peace, by natural disasters, poverty, hunger, tyranny or more generally anxiety. A strong incentive of the opposite, behavioural expansion, is trust; that is the expectation of environmental stability and, above all, trust in one's fellow-human beings.



Modes of Sociality.

For a first approximation, let us forget all details and define some possibly general modes in which humans may interact. One such mode is Agôn, Greek for Games. Like the Olympic Games (1), but in general all kinds of ritualised contest; not only sports. Also in political crises there may be moments when persons or parties in Parliament stand up against each other under great tension and equally waged until one surrenders, or the two find a compromise or a new way out into creative cooperation. 'Ritualised' means that the players subject themselves to certain rules of restriction. A sportsman not obeying the rules is disqualified. Parliamentary politicians may combat, but are not expected to hit each other over the head, (much as they might wish to do so) - a rule of conduct that is violated only at very rare occasions worldwide.

Agôn is thus characterised by symmetry of the parties, high tension and ritualisation. This mode is deeply rooted in the animal kingdom. Like animals, we humans have several ways at our disposal to tone down the tension that nobody could bear for long and which thwarts other necessary concerns. I already mentioned some of these: surrender, compromise, division of labour and play. To the mathematical mind, the first three are breakings of symmetry, but this does not concern us here. Important, however, is the last, play, because it lessens the tension by increasing the creativity and the versatility of behaviour.



Agonic and Hedonic Modes.

Surrender of one party leads to a more or less permanent dominant-subordinate relationship. If more parties are involved, a hierarchy (pecking order) may be the result. Compromises and divisions of labour or competence may be viewed as figurative forms of territorial arrangements. Hierarchies and divisions are to be found everywhere in human society, from the family to international politics and economy. It was the late Dr. Michael R.A. Chance, who realised that these are just forms, their meaning being set by two modes, on one level with the Agôn mode, for which he coined the names Hedonic and Agonic (2, and an earlier publication on this blog). Like Agôn, these two modes may refer to relationships between individuals or to the social structure of entire groups, nations or humanity. Examples of both modes are known to all of us. Take these, for instance:

In the office, your boss is like a dictator. He gives orders without waiting for your comments. He does not trust you; checks your work as well as the way you spend your time, always ready to reproach or fire you at the slightest provocation. You distrust him; you are constantly aware of his presence and afraid to make any move that might be interpreted as disobedience.
Alternatively, your boss bids you good morning when he comes to your desk the first time in the day. After delivering his orders, he listens to your questions. He may draw your attention to the importance of this piece of work to the company (which makes you interested in its well-being) and says thank you when you have done it well. He is the boss, making final decisions, but he makes you feel that you contribute to the common goal, and you trust him to not suddenly punish or throw you out for no reason.

These little scenes are examples of the Agonic and Hedonic modes respectively. They differ in their structures of attention among the persons involved, and in the directions of communication: only top-down in the former, in all directions in the latter. In the former, the boss relies on his power to punish you; threat and fear bind your attention. The other boss attracts your attention, relying on his prestige. Latent, chronic tension is always there in the Agonic mode, as well as mutual distrust, while the Hedonic mode is more relaxed (3).
Both modes are stable in time (though not forever), and both are effective economically. They may even exist between the same people, depending on the moodiness of the boss or on the degree of well-being of the company. Under adverse conditions the Agonic mode may prevail; the Hedonic may take its place when circumstances are relaxed.

The examples above are ideal cases. Play and mutual 'tederheid' (tenderness) are more typically at home in the Hedonic mode, but may occur in the Agonic too. They tend to change their face in the latter case, play being degraded into a rough struggle or demonstration of power, teder behaviour emphasising its aspect of possessiveness and manipulation. It is similar with hierarchies and divisions: likely to be based on power and fear in the Agonic and more often built on prestige and appreciation in the Hedonic mode. The real situation
is even more complicated; teder and playful relationships between individual persons may thrive within a generally agonic society, while overall hedonic conditions do not prevent the presence of distrust and hateful actions between some. In fact, both modes tend to coexist, either simultaneously at different levels of one and the same group or in alternating periods (4). Some of these features have been expressed in the diagram below, which is a state space of a hypothetical human social group.
Fig. 1. A simple version of an anatomy of peace. AGO = Agonic; HEDO = Hedonic.

Yellow is Agonic, blue Hedonic. The blank triangular field at the left side, mirroring the yellow field, belongs to the Agonic domain. The blank, spindle-shaped field in the middle symbolises Agôn. On the vertical axis is the relative degree of behavioural expansion or constriction reigning in the group; expansion is up, constriction down. The social state of the group at a certain moment may be read along a horizontal line at the appropriate height. (Two arbitrary ones have been drawn). The relative preponderance of each mode in the group's behaviour corresponds to the lengths of line cut by the blue, yellow and white fields. It may be seen that, the higher the horizontal line, the larger are the relative contributions of the Hedonic mode over the Agonic and Agôn. In agreement with what I said before, any one of the modes may occur at any horizontal level, but the relative proportions differ.

The horizontal dimension of the diagram indicates the difference in status between dominant and sub-ordinate members of the group; degree of dominance right, depth of submission left. The figure is thus symmetric relative to the middle, where parties are equally waged, in Agôn. As may be seen, differences are smaller in the Hedonic mode as compared to the Agonic, at least on the average.

The oblique lines bordering the figure left and right converge upwards. This expresses the idea that the steepness of dominant-subordinate relationship tends to decrease with progressing behavioural expansion, increasing playfulness and preponderance of the Hedonic mode. Going downward, the lines stop at the broken horizontal line. Below the latter, there is no limitation to inimical, violent interactions: the realm of war, violent crime, etc. This area was called the Agonistic mode by Michael Chance (5).

Having explained about the lines in the diagram, I now propose that the area within the triangle represents Peace. In this view, peace consists of a collection of modes, each with its own characteristcs and each definable as we have seen. It may seem preposterous to suggest that peace is just that; and certainly this model does insufficient justice to the richness of human behaviours and invention, and to the variety of human relationships. For a better view, we shall  have to include many sub-modes (play and tederheid, love and rage, quibbling and quarreling, etc., etc.). As a first step towards defining peace, however, it may I think be promising.
In order to follow this track, we may now ask what is the special significance of the slanting lines that form the sides of the triangle. Why are they there at all? What is it that puts limits to dominance and submission, through the whole traject of peace? Surely, this must be the awareness that others are one's fellow-human beings, endowed with their own values, different from but as valuable as ours, and with different but comparable faults and virtues. In other words, these lines symbolise empathy and positive regard (6).


Sustainable Peace.

The question of realising sustainable peace may now be reformulated by asking whether and how we can prevent peoples from crossing the broken line into the agonistic area. To be honest, we, humanity, have not managed this so far, though some progress has been made. In spite of the League of Nations, the United Nations and lots of good intentions, peoples still go to war, to the detriment of a humane life and of the natural environment.
There is a lot of movement within the triangle of peace where, as we have seen, the Hedonic and Agonic modes tend to coexist or take turns under the influence of external stresses and relaxations. We organise rituals in the Agôn mode, like championships and the Olympics, in addition to those occurring naturally. A wise move, since in this way the natural inclination of people to seek and experience tension and thrill is thereby canalised and controllable. Give the people bread and games, the Romans said. Desmond Morris argued in his book The Naked Ape that the famous Palio horse races in the Italian city of Siena may well explain why Siena has a dramatically lower crime rate (especially as to crimes of a violent nature) than any other European city of similar size. However, if the modes of peace alternate, how can one prevent the Agonistic mode to be also accessed?
Frankly, a panacee has not yet been found. Could the theory of modes of behaviour give some indications as to where to go? Here are a few suggestions:

Regulate Stress. Excess of stress may provoke behavioural constriction and negative emotions that may prcipitate war. Regulation does not mean complete removal. Aldous Huxley's Brave New World pictured long ago how wholesale shielding against stress may go with a thorough infantilisation of human beings; not a vey attractive perspective. Even without going that far, regulating stress is an enormous task; it would at least demand feeding the world's human population and respecting everybody's Human Rights.
Favour Trust. The switch by which the Agonic mode may be turned into the Hedonic is trust. Once established, trust tends to breed more trust and thus helps to anchor society firmly in the Hedonic mode, making sudden transitions into the Agonistic unlikely. (By the way, distrust does the same in the opposite direction, as we witness to-day in the bank crisis plaguing some of the long-standing, big economies). Evidently, one cannot impose trust - or an Orwellian 1984 regime would ensue, where people are coerced into trusting Big Brother. Persons and parties must prove themselves worthy of trust; governments and economic powers in the first place. Distrust between governments and their peoples may take many forms; but in the end, I believe, mutual trust must necessarily win out.
Teach Empathy. Empathy is the basis of fruitful dialogue and of peace. I do not know whether empathy is a Gift or an Art that may be learned, but I am pretty sure that it can be encouraged in children at the right age. Even if not everybody could, an increase in the proportion of empathic people might tip the balance for a more humane humanity in future.

Many more ways to improve conditions favouring peace are possible, and have been recommended by others. Here I concentrated on those suggested by the theory of modes.

Notes.

(1) Agôn does not refer to the computer games with which young and old think they may sharpen their mind. They play within an imaginary world, like an actor playing on the stage.

(2) Chance, M.R.A. & C.J. Jolly, 1970. Social Groups of Monkeys, Apes and Men. London, Jonathan Cape.

Chance,  M.R.A. & R.R. Larsen (eds.), 1976. The Social Structure of Attention. London, Wiley.

Chance, M.R.A., 1984. Biological Systems Synthesis of mentality and the nature of the two modes of mental operation: hedonic and agonic. Man-environment Systems 14: 143-57.

Chance, M.R.A., (ed.) 1988. Social Fabrics of the mind. Hove, Lawrence Erlbaum.

Kortmulder, K., 1998. Play and Evolution; Second Thoughts on the Behaviour of Animals. Utrecht, International Books.

Kortmulder, K. & Y. Robbers, 2005. The Agonic and Hedonic Styles of Social Behaviour. Mellen Studies in Sociology, vol. 49. Lewiston, Queenston, Lampeter, The Edwin Mellen Press.

(3) Hedonic should not be confused with Hedonistic. The latter refers to a philosophy called Hedonism, which depends on the notion that one should let one's actions be governed by one's private pleasures. The hedonic mode has received its name because the relations to which it refers are of a pleasant nature, unlike those of the Agonic mode.

(4) See Kortmulder & Robbers, 2005.

(5) Traditionally the term Agonistic refers to all fighting behaviour, including also threat and appeasement. In the terminology of the behavioural modes Agôn and the Agonic mode have been given their own status and excluded from the Agonistic.

(6) Stevens, D., 1993. Bimodality - categories or dimensions? The ASCAP Newsletter, sept. 1993.

The figure was prepared by Martin Brittijn and adapted by Yuri Robbers. I thank Yuri Robbers for commenting on an earlier draft of the paper.

dinsdag 6 november 2012

On the Hedonic and Agonic Modes of Social Behaviour in Animals and Humans

Dear Reader,

I want to explain to you about "the two modes" of social behaviour as first formulated by Michael R.A. Chance. He called them 'hedonic' and 'agonic'. A few examples from daily life may do more to acquaint you with them than a lot of technical language. Suppose,

you are walking in the street; not in a particular hurry, but you do have an appointment. Suddenly, out of the blue, a biggish dog comes trotting towards you. You don't like dogs; you distrust them. If you were a child, you might run away, thus unintentionally inviting the dog to run after you. Instead, you stop short and brace yourself. Hands in your pockets, you try to avoid the beast's advances. "No, no, no", you utter, with irritation in your voice, hoping the dog's master will appear soon. Perhaps you may turn angry, trying to discourage the animal by shouting at it. Some people even bark. Fortunately, here comes the owner, just as the dog has begun to answer your hostility with proportionate means. If you scold the master too, the dog will not like you better for it.

Now, let us have the scene run again, with a different scenario. You understand dogs, and you enjoy recognising their curiosity as to people. This dog is a stranger to you, so you are on your guard. You don't look straight at it and you talk in a friendly, subdued tone: "Oh, there's a good dog; how good to see you; what's your name?" or any other nonsense in the same vein. The dog sticks out its neck and sniffs your coat and shoes and, yes look, his tail is beginning to waggle. Ten to one that, by the time its master comes around the corner, the dog will be licking your hand. You may not be particularly fond of dogs licking your hand, but it is much better than a growl or a snarl.

Here is another story. I was at school in Rotterdam in the early fifties. Outside the building was a large space of private ground with trees, grass and ditches. Until building activities started. Not far from our windows a great hall was being assembled with the aid of derricks and pulleys. Our Greek teacher, who was also vice-principal, always complained about our progress and the amount of effort we were putting in. He now threatened, repeatedly, that he would have frosted glass put into the lower windows if we couldn't, on our own accord, refrain from watching the proceedings out there. The English teacher had a different way with us. He managed to win our attention by creating a pleasant atmosphere, telling anecdotes about the British when appropriate and letting us read English plays with roles allocated in turns. One morning, he said: "Now look there, outside, there is a kestrel hovering right in front of the window; it is called 'bidden' " [that is 'praying' in Dutch]. And after a while he carried our attention right back into the class-room, as naturally as he had turned it outside. We ended up believing that Greek is wonderful and difficult, and that English is great fun.

Let me complete this series about man-and-dog and master-and-disciple with an episode between adults on equal footing:

In the same fifties, but a little later and in a very different field, there was a serious paradigmatic clash between the American experimental psychologists and the ethology developed in Europe by Konrad Lorenz and Niko Tinbergen. At the American side, Daniel Lehrmann opened the hostilities with a very critical paper hackling some of the ideas of Lorenz and Tinbergen, and a few unpleasant exchanges of fire followed. As seen in retrospect, both parties were responding to key stimuli. The Americans were irritated by the concept of innate behaviour and its evolution, because it reminded them of  'Social Darwinism' and 'Genetic Psychology', American schools of thought they believed they had successfully refuted. The Europeans, on the other hand, feared support for Animal Psychology as propounded by some of their compatriots, whom they accused of anthropomorphism and easy subjectivism.  Looking back, it is difficult to understand the heat. We now have other prejudices...

At a certain point, a small delegation of ethologists including Gerard Baerends, Jan van Iersel and I guess Niko Tinbergen crossed the ocean to talk it over with Daniel Lehrmann and some of his colleagues. As they and their American hosts were waiting for transport at the foreign airport, the atmosphere was tense as they sat together in a corner of a huge, cheerless hall like a hangar. Then, outside, a bird called. Another bird answered. Jan sat up: "can we have a look at them?" It worked like a charm. All present were keen bird-watchers. With this common ground opened up, at once everything looked different.

I do not know whether the conference yielded any important scientific results, but it is certain that the episode at the airfield did something to melt the ice.

What do these little accounts have in common? They are illustrative of two contrasting states of mind and two corresponding modes of communication. On the one hand there is tension, distrust, narrowing of perception, attention focussed on differences, staccato vocalization and inclination to 'fight and flee'; on the other, relaxation, trust, open-mindedness, consciousness of similarities, sostenuto speech and an inclination to 'stay and play'. Whether between humans or animals, these are some of the characteristics of what Michael Chance called, in the same order, the agonic and the hedonic mode.

woensdag 24 oktober 2012

Alles over Barbelen

Gedurende het grootste deel van mijn wetenschappelijke leven heb ik barbelen bestudeerd. Barbelen? Dat zijn karperachtige visjes uit de zoete wateren van tropisch Azië. Geslacht Puntius, familie Cyprinidae. Er bestaan zo'n 100 soorten van en velen zijn bij aquariumhouders geliefd om hun fraaie kleuren, levendigheid en gepassioneerd gedrag. Mijn onderzoek begon met aquariumwaarnemingen, maar na de eerste jaren kwamen er tropenreizen met veldwerk aan te pas, want over hun gedrag in het wild en de soorten wateren waarin ze leefden was niets bekend; over hun gedrag in aquaria trouwens ook niet toen ik m'n onderzoek begon.
Terugkijkend op een jaar of veertig onderzoek heb ik vorig jaar een boek gepubliceerd: "Barbelenverhalen; vissen in tropisch water", waarin niet alleen over de onderzoeksresultaten verteld wordt, maar ook over mensen, landstreken en culturen: de landschappen van Sri Lanka, Zuid-India en Malakka, cultuurverschillen tussen de bijna-buurlanden Sri Lanka en Kerala (India) en bijzondere ontmoetingen. De meeste besproken soorten staan erin afgebeeld op foto's, in meerderheid van meesterfotograaf Arend van den Nieuwenhuizen.

Een van de eerste wetenschappelijke vragen waarmee ik geconfronteerd werd was wat de functie is van de zwarte vlekken of strepen die barbelen op de zijde van het lichaam dragen. Waarom hebben ze die en waarom elke soort weer anders? Mijn professor die me aan deze dieren zette verwachtte dat zwarte dwarsstrepen, zoals Purperkoppen (Puntius nigrofasciatus) en Sumatraantjes (P. tetrazona) hebben, afschrikwekkend op soortgenoten zouden werken. Mannelijke barbelen vechten met elkaar, en hoe agressiever de heren zijn, hoe meer behoefte aan afweer door middel van dreiggedrag en afschrikkende kleurpatronen. Dat wás het echter niet. Juist tijdens het paaien, dé gelegenheid waarbij mannetjes met elkaar vechten, trekken die zwarte strepen geheel of gedeeltelijk weg of worden ze gemaskeerd doordat het hele lijf zwart wordt.
Waren het dan misschien schutkleuren,die vooral búiten de voorplantingsperioden van belang waren? Ook dat klopte niet, zoals ik in het veld kon vaststellen. Verticale banden kunnen een vis wel verbergen als hij stilstaat tussen rechtopgaande stengels, maar barbelen staan nooit stil. De bandenstructuur maakt hen in het veld alleen maar opvallender. In het boek wordt beschreven hoe ik min of meer toevallig het juiste antwoord vond via waarnemingen die er oorspronkelijk helemaal niet voor bedoeld waren.

Door heel veel waarnemen van gedrag en kleurveranderingen, in veld en aquarium, werden ook de betekenissen van de andere kleuren gevonden: waarom worden Purperkopmannen bijna helemaal egaal zwart in de paaiperioden, en waarom behouden Sumatranen in die omstandigheid nu juist de contrasten? Het wordt allemaal verteld, in ook voor leken leesbare taal, in:

Koenraad Kortmulder & Yuri Robbers 2011. Barbelenverhalen. Brussel, Academic & Scientific Publishers ASP


vrijdag 19 oktober 2012

over preventie van wetenschapsfraude

Een paar gevallen van wetenschapsfraude hebben een discussie over preventie veroorzaakt. Men vraagt zich af of huidige studenten wel voldoende gewezen worden op de schade die ze straks als onderzoeker zullen aanrichten, zowel aan de wetenschap als aan zichzelf, als ze losjes met de waarheid gaan omspringen. Suggesties voor maatregelen zijn er vele, uiteenlopend van speciale contacturen student-docent tot het laten afleggen van een eed door iedere student. Of het een of het ander zal helpen zal moeten blijken, en ook hoe het zich zal verdragen met de prikkels tot productie. In ieder geval lijkt me dat het ook eenvoudiger, en goedkoper, kan.
Het oude Zoötomisch Laboratorium - inmiddels allang door lelijke nieuwbouw vervangen - van de Leidse Universiteit had een monumentale ingang aan de Witte Singel. Via stoep en voordeur kwam je in een hoge, witte hal met twee niveau's en een trap daartussen. Hoog tegen de rechterzijwand waren enkele uitspraken van vroegere hoogleraren geschilderd. Als student kwamen we daar niet alleen minstens 2x per dag langs, maar we zaten er vaak ook als we te vroeg of te laat voor college waren, of in een vrij uur als het buiten regende. Vandaar dat die spreuken zodanig in ons geheugen gebrand werden dat ik ze nóg uit 't hoofd kan citeren, inclusief de zeer oude spelling van de middelste:

"WAARHEIDSLIEFDE IS DE EERSTE EN VOORNAAMSTE EIGENSCHAP VAN DEN NATUURONDERZOEKER. ZIJNE VORMING IS GEHEEL MISLUKT, WANNEER DEZE EIGENSCHAP NIET HEERSCHENDE BIJ HEM GEWORDEN IS."

Was getekend: J. van der Hoeven.
Het was zeker niet alleen de dagelijkse inprenting. Het betoogje van 2 zinnen zélf ging regelrecht naar de kern van de zaak. Niet: eerlijkheid, maar: waarheidsliefde. Willen weten hoe het écht zit, en dat met anderen delen; dát is de drijfveer van de wetenschap. Dat op de eerste en belangrijkste plaats - niet verhandelbaar. Pas daarna komen motieven als ambitie aan bod: bewonderd worden, een mooie baan, veel geld verdienen. Als het niet zo zit, dan moet je geen wetenschapper worden.
Dit klinkt wellicht vreemd in onze tijd waarin wetenschappelijk onderzoek en economische belangen nogal verstrengeld geraakt zijn. Maar die recente gevallen gingen nu juist over onderzoekers die het om de roem te doen was, en niet over een beetje gesjoemel bij het testen van potentiële bestsellers.
En de methode van die oude professor van der Hoeven? Wellicht een idee!