beneath symbols: convention as a semiotic phenomenon

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Uncorrected draft: in press in Evolution & Contextual Behavioral Science: A Reuni7ication. Steven C. Hayes & David Sloan Wilson (eds.), New Harbinger Publications Beneath symbols: Convention as a semiotic phenomenon Terrence W. Deacon Introduction: Symbolic reference is a distinguishing feature of human language. In this respect language contrasts with other species-typical vocalizations and most communicative gestures, which only provide reference iconically or indexically. Because of its arbitrary and conventional nature, symbolic reference must be acquired by learning, and lacks both the natural associations and trans-generational reproductive consequences that characterize other innately evolved communicative adaptations, like laughter and sobbing. This is why there are no innate words and why it is so extensively reliant on social (as opposed to genetic) transmission. Iconic and indexical forms of communication are ubiquitous in the animal world as well as in human communication. They provide reference by virtue of formal and physical features shared by the sign vehicle and that to which it refers. In contrast, it is the irrelevance of any shared properties between sign vehicles (e.g. word sounds) and what they refer to—often referred to as arbitrarity—that facilitates the capacity to combine symbolic forms into vastly many complex structures (e.g. sentences and narratives) able to specify highly diverse and precise communicative contents. To say that symbolic reference is arbitrary is to say that it is determined by convention, rather than by any intrinsic sign vehicle properties. But what is entailed in the concept of convention when used in this way? The Merriam-Webster dictionary lists three related meanings that are relevant to this issue: a convention can be a usage or custom especially in social matters, a rule of conduct or behavior, or an established technique, practice, or device. Probably the two most common social phenomena attributed to social convention in the course of intellectual history are money and language. The claim that language is the expression of social convention is ancient. In Aristotle’s work On Interpretation he describes a name as a convention because it is not a natural feature of what it refers to. He 1 explicitly notes that this is what makes a name a symbol. The concept of convention has also been associated with the notion of a social contract (e.g. by Rousseau and Hobbes) understood in terms of an agreement, mostly with respect to its opposition to natural tendencies or the so-called “state of nature” imagined to predate civilization. While John Locke recognized that there can be tacit conventions that arise, though no explicit agreement was negotiated. The concept of convention was a major focus of David Hume’s analysis of many regular practices found in human societies. He argued that social conventions are necessary for establishing such social phenomena as property, agreements, laws, and so forth, in which individuals elect to all conform to certain limits to or habits of behavior out of an expectation of mutual beneYit. He also explicitly critiques the notion that conventions need to be the result of explicit agreements. He illustrates this with a memorable example: two 1 By ‘name’ Aristotle appears to mean any general term, not merely a proper name. 1

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Page 1: Beneath symbols: Convention as a semiotic phenomenon

Uncorrected draft: in press inEvolution & Contextual Behavioral Science: A Reuni7ication.StevenC.Hayes&DavidSloanWilson(eds.),NewHarbingerPublications

Beneathsymbols:ConventionasasemioticphenomenonTerrenceW.Deacon

Introduction: Symbolicreferenceisadistinguishingfeatureofhumanlanguage.Inthisrespectlanguagecontrastswithotherspecies-typicalvocalizationsandmostcommunicativegestures,whichonlyprovidereferenceiconicallyorindexically.Becauseofitsarbitraryandconventionalnature,symbolicreferencemustbeacquiredbylearning,andlacksboththenaturalassociationsandtrans-generationalreproductiveconsequencesthatcharacterizeotherinnatelyevolvedcommunicativeadaptations,likelaughterandsobbing.Thisiswhytherearenoinnatewordsandwhyitissoextensivelyreliantonsocial(asopposedtogenetic)transmission. Iconicandindexicalformsofcommunicationareubiquitousintheanimalworldaswellasinhumancommunication.Theyprovidereferencebyvirtueofformalandphysicalfeaturessharedbythesignvehicleandthattowhichitrefers.Incontrast,itistheirrelevanceofanysharedpropertiesbetweensignvehicles(e.g.wordsounds)andwhattheyreferto—oftenreferredtoasarbitrarity—thatfacilitatesthecapacitytocombinesymbolicformsintovastlymanycomplexstructures(e.g.sentencesandnarratives)abletospecifyhighlydiverseandprecisecommunicativecontents. Tosaythatsymbolicreferenceisarbitraryistosaythatitisdeterminedbyconvention,ratherthanbyanyintrinsicsignvehicleproperties.Butwhatisentailedintheconceptofconventionwhenusedinthisway?TheMerriam-Websterdictionaryliststhreerelatedmeaningsthatarerelevanttothisissue:aconventioncanbeausageorcustomespeciallyinsocialmatters,aruleofconductorbehavior,oranestablishedtechnique,practice,ordevice. Probablythetwomostcommonsocialphenomenaattributedtosocialconventioninthecourseofintellectualhistoryaremoneyandlanguage.Theclaimthatlanguageistheexpressionofsocialconventionisancient.InAristotle’sworkOnInterpretationhedescribesaname asaconventionbecauseitisnotanaturalfeatureofwhatitrefersto.He1

explicitlynotesthatthisiswhatmakesanameasymbol.Theconceptofconventionhasalsobeenassociatedwiththenotionofasocialcontract(e.g.byRousseauandHobbes)understoodintermsofanagreement,mostlywithrespecttoitsoppositiontonaturaltendenciesortheso-called“stateofnature”imaginedtopredatecivilization.WhileJohnLockerecognizedthattherecanbetacitconventionsthatarise,thoughnoexplicitagreementwasnegotiated. TheconceptofconventionwasamajorfocusofDavidHume’sanalysisofmanyregularpracticesfoundinhumansocieties.Hearguedthatsocialconventionsarenecessaryforestablishingsuchsocialphenomenaasproperty,agreements,laws,andsoforth,inwhichindividualselecttoallconformtocertainlimitstoorhabitsofbehavioroutofanexpectationofmutualbeneYit.Healsoexplicitlycritiquesthenotionthatconventionsneedtobetheresultofexplicitagreements.Heillustratesthiswithamemorableexample:two

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By‘name’Aristotleappearstomeananygeneralterm,notmerelyapropername.1

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meninarowboat,eachwithonoar,whoneedtocoordinateandsynchronizetheirrowinginordertoreachanyparticulardestination.Humeproposesaconventionaltheoryoflanguageregularitiesthatneednotarisefromnegotiatedagreementswhenhestatesthat:“…languages[are]graduallyestablish’dbyhumanconventionswithoutanyexplicitpromise.”(TreatiseofHumanNature,p.490) TwentiethCenturyphilosophersrevisitedtheissueoftheconventionalityoflanguageinahalfcenturyofdebatesaboutthenatureofsemanticsandtruth,especiallyasitimpactedthefoundationsoflogic.SuchintellectualgiantsoftheYieldasCarnapandQuinebattledoverthecoherenceofconventionaltheoriesofmeaning,truth,andmathematics.Atmidcenturythisledtoaparticularintensedebateinlinguistics,particularlyfueledbyNoamChomsky’sstridentdenialofitsrelevancetogrammarandsyntax;adebatethatstillrages,andwhichwillbeaddressedbelow. AninterestingreassessmentofthelogicalstructureofconventionalitywasprovidedbythephilosopherDavidLewisinhis1969bookappropriatelytitledConvention.Lewisarguedthatconventionshouldbeconsideredasolutiontoacoordinationproblemandthatitneedn’tinvolveexplicitorimplicitagreement.BeginningbyrecountingHume’smetaphoroftherowersandframingtheproblemintermsofgametheoryhedevelopedprogressivelymorecomplexmodelsofhowgroupsofindividualsmightspontaneouslyarriveatwhatmightotherwiseappearasthoughagreed-uponcollectivebehaviors,withnothingresemblingagreement,tacitorotherwise.

Thesemioticsofconventionality Conventionalityisnotthecriticaldeterminerofsymbolicreference,eventhoughsymbolsmustinvolveconventionalizesignvehicles.Therecanbeconventionalizediconsandconventionalizedindices.ConventionalizediconsincludethestickYiguresonrestroomdoors,theskullandcrossedbonesonbottlescontainingpoison,andthecigarettedrawingwithasuperimposedcross-outslashacrossit.Ofcourseallthreealsoareusedindexically.Theplacementofamaleorfemaleicononarestroomdoorindicatesthatitopenstoasex-speciYicrestroom,theskullandcrossedbonesinsigniaindicatessomethingaboutthesubstanceinthemarkedcontainer;andthecrossed-outsmokingcigaretteindicatesanosmokingzone.Soboththeformallikenessesandthefactualcorrelationsofthesesignsarerelevantconventions.Aconventionalindexthatisminimallyiconicisthewhitelinedownthemiddleofatwo-wayroad.Thoughitmightbeiconicallycomparedtoa“propertyline”ornationalborder,oreventheoutlineofacoloringbookYigure,itdoesnotphysicallypreventdriversfromcrossingit.ButdespiteitsconventionalnatureanddependenceontrafYiclaws,thelineitselfisnotsymbolicandcanonlymetaphoricallybesaidtohaveameaningordeYinition. Thisdistinctionisimportant,becauseithelpstountangleatroublesometendencytosimplyequatesymbolswithconvention.AsCharlesPeirceclearlydemonstrated,beingaconventionalsignvehicleandreferringconventionallyarenotthesame.Thushedesignatedconventionalsignvehicles“legisigns”andnonconventionalsignvehicles“sinsigns”or“qualisigns”andarguedthattherecouldbeiconic,indexical,andsymboliclegisigns,butnotsymbolicsinsignsorsymbolicqualisigns.Inotherwords,symbolicreferencecanonlybebornbyconventionalsignvehicles.Thussymbolsaredoubly

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conventionalinthattheyinvolveconventionalsignvehiclesthatreferconventionallyaswell.Sotoexplainthedevelopmentofsymbolicreferentialcapacitieseitherinchildhoodlanguageacquisitionorinthecaseoftheevolutionofthiscapacityinhumansitisnecessarytoaccountforbothformsofconventionality. Thismeanswemustansweranumberofrelatedquestions:Iflinguisticconventionsareshareddispositionsthatwerenotestablishedviaexplicitsocialagreementorsocialconformityhowelsecouldtheyhavebeenachievedinevolutionandchilddevelopment?Doesthisinevitablyleadustoacceptaninnatesource?Andwhatmightthismeanwithrespecttolanguagestructureaswellasotherconventionalformsofsemiosis? ThisiswhereinsightsprovidedbyHume’sandLewis’sanalysisprovidesanimportantclue.CoordinationisdeYinedwithrespecttoachievingacommonend,whetherornottheagentsinvolvedknowaboutoneanother’sgoals.ThisisexempliYiedinLewis’sframingofcoordinationingametheoryterms.Games,asgeneralizedinthisabstractsense,areactivitieswithexplicitpayoffsorgoals.Evenifthereisnoexplicitcommunicationbetweentheagentstheystillmaygaininformationabouteachother’sgoalsbyobservingtheconsequencesofeachother’sbehaviors.Thusinthecaseoftherowers,eveniftheyareinsomewayunabletointeractinanyotherwaythanbyrowingtheycanstillconvergeonacoordinatedpatternthatleadstoreachingaspeciYicdestination. 2 Whatisoftenoverlookedwhendescribingthissortofthoughtexperimentisthatthereisstillinformation(akasemiosis)involved.Thesolutionisachievedsemiotically,justnotwithexplicituseoflanguageorpointing,orotherexplicitmeansforsharingtheirseparateintentions,butbyinterpretingthedispositionsexhibitedinbehavioralresponses.Indeed,thiscouldbethecaseevenifthereisonlyonehumanagentinvolvedandanautomaticrowingmachinecontrollingtheotheroar.Thepointisthatonceweexpandouranalysisbeyondlanguage-likecommunicationandevenbeyondintentionallyproducedcommunicationtoconsidersemiosisinthebroadestsense,itbecomesclearthatthedevelopmentofconventionalityrequiresextensivesemioticactivity.MorespeciYically,toacquireorevolvethecapacitytodeterminereferenceviaconvention—i.e.symbolicreference—priornon-conventionalcommunicationisrequiredatsomepointtoestablishthisconventionality.Torestatethishypothesisinsemioticterms:inordertodevelopasymboliccommunicationsystemsuchasalanguageitsconventionalpropertiesmustbeestablishedusingiconicandindexicalmeans. ButIwanttomakeafarstrongerclaim.IwillarguethattheconventionalityoflanguageisitselfareYlectionoftheseiconicandindexicalrelationsre-emergingintheformofrelationsbetweensymbols.Theseinter-symbolicrelationsgobymorefamiliarlinguisticterms:grammarandsyntax.MygoalistorecasttheconceptoflinguisticconventioninsemiotictermsinordertodisentangleitfromtheconceptionoflinguisticconventionasmerearbitrarymappingbetweensigniYiersandsigniYieds.Iwillarguethatthispresumedarbitrarityintherelationbetweensignvehicleandreferentpropertiesisenabledbythenon-arbitraryiconicandindexicalstructureofbetween-symbolrelations.Toputthisanotherway,communicatingwithsignvehicles(e.g.words,etc.)thatreferbyconvention

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Ofcourse,iftheagentsinvolvedhaveconYlictinggoals,whethertheyareawareofthisornot,2

coordinationbecomesfarmoredifYicult,andmayresultinsuboptimalresultsforboth.

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aloneismadepossiblebycombiningthemvianon-conventionaliconicandindexicalproperties.Sonotonlyarethecoordinatingconditionsforlanguageachievedbysocialconvention,butthestructurethatresultsreYlectsthesemioticstructureofconventionitself.

Thesymbolun-groundingprocess: Inanowfamouspaperpublishedin1990thecognitivescientistStevenHarnadarticulatedaworrythathadlongpuzzledphilosophersoflanguageandcognitivescientistsingeneral.Hecalleditthe“symbolgroundingproblem.”Themysterywashowarbitrarymarks,suchasthesoundsofspeechorthestatesofabrain,couldreliablybecomecorrelatedwithspeciYicreferentssothatsymboliccommunicationispossible.Inotherwords,withoutdeterminingthismappingextrinsically,i.e.byusingsymboliccommunicationtonegotiatetheestablishmentandsharingofthesecorrespondences,howcouldthesemappingseverbeestablishedintheYirstplace.Ifittakescommunicationwithsymbolstoestablishthissharedmappingconventionbetweensymbolsandtheirreferentsthenwearefacedwithaviciousregress.Toclarifyapotentiallyconfusingdifferenceofterminology,inthatcontextthedistinctionbetweenconventionalityofsignvehicleandconventionalityofreferencearenotdistinguished,andyetinthatpaperhespeculatesthatsymbolgroundingmustthereforebeachievedusingnonsymbolicmeans. InrecentlecturesandforthcomingpapersJoannaRaczaszek-LeonardiandIinvertthisframingoftheproblem.Wepointoutthattheproblemisactuallytoexplainhowiconicandindexicalformsofcommunication—whichareintrinsically“grounded”duetothesignvehiclessharingfeatureswiththeirreferents—canbeusedtodevelopcommunicationusingungroundedsignvehicles(akawords/symbols).Thisisofcoursethechallengefacedbyeveryhumantoddler.Thereasonthatthechallengeisseldomframedthiswayisbecausetheinfant-caretakerinteractionsarenotgenerallyunderstoodinsemiotictermseitherinpsychologyordevelopmentlinguistics)andbecausethedevelopmentoflanguagecompetencyisnotseenasatransitionfromanearliertoalatermoredevelopedsemioticprocess.Fromasemioticperspective,however,thereisarichandcomplexsetofsocialsemioticskillsbeingacquiredduringtheYirstyearoflifeandsigniYicantlypriortotheearlystagesofexplicitlanguageacquisition.Seenfromthissemioticperspective,then,theexplosivegrowthoflanguageduringthesecondandthirdyearsoflifeisaprocessinwhich

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theseearliericonicandindexicalcapabilitiesaidthechild’sdiscoveryofhowtousewordsandwordcombinationssymbolically. Thisisanungroundingprocesstotheextentthatthetoddlerhastodiscoverhowtotransferfromusingintrinsicallygroundedtousingungroundedsignvehicles,allthewhilemaintainingreferentialgrounding.Thiscanonlybemaintainediftheseiconicandindexicalrelationsareinsomewaypreservedinthetransitiontosymboliccommunication.Sincepropertiesthatcouldprovidereferentialgroundingareabsentfromlinguisticsignvehiclesgroundingcanonlybepreservedbymeansextrinsictothem,i.e.intherelationsbetweenthem.ThelogicofsymbolungroundinginlanguageisdepictedinYigures1and2.

Figure2.

Universalgrammarfromsemioticconstraints:Thisbegsanimportantquestion:Canthepropertiesthatlinguistsunderstandas

grammaticalbeexplainedintermsoficonicandindexicalproperties?InthissectionIwillexplorethepossibilityofexplainingthesomeofthemostubiquitousgrammaticalprinciples—so-calledgrammaticaluniversals—intermsofsemioticconstraints.SpeciYically,Iwillarguethatthemostnearlyuniversalfeaturesofgrammararetheleastarbitraryaspectsoflanguagebecausetheyareconstrainedbytherequirementsforiconicandindexicalreference.

Grammaticalrelationshipsdon’tautomaticallycometotheforewithallformsofsymboliccommunication.ThisisbecausegrammarisapropertyofsymbolicreferencethatemergeswhensymbolicreferenceisampliYiedbycombinatorialoperations.Onceitisrecognizedthatsymbolicreferenceisnotasimplemappingrelation,butemergesfroma

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baseoficonicandindexicalrelationstransferredtosymbol-symbolrelations,themanycontributionsoftheseunderlyingsemioticconstraintstothestructureoflanguagewillbecomeobvious.

Iconicandindexicalrelationshipsareconstitutedbysharingexplicitpropertiesthatwiththeirreferents.Theseareimplicitineluctableconstraintsthatareinheritedbyfeaturesofgrammarandsyntax.Thesebecomere-expressedinoperationsinvolvingsymbolcombinations,suchasphrases,sentences,arguments,andnarratives.Theseconstraintsemergefrombelow,sotospeak,fromthesemioticinfrastructurethatconstitutessymbolicrepresentationratherthanneedingtobeimposedfromanextrinsicsourceofgrammaticalprinciples(e.g.innateuniversalgrammar).Althoughthisinfrastructureislargelyinvisible—hiddeninthedetailsofaninternalizedsystemandlargelyautomatedduringearlychildhood—usingsymbolsincombinationincommunicativecontextsnecessarilyexposestheseconstraintsthatdetermineiconicandindexicalgrounding. Thesesemioticconstraintshavethemostubiquitouseffectontheregularizationoflanguagestructure,butinadditiontherearesourcesofweakerlessubiquitousconstraintsalsocontributingtocross-linguisticregularities.Theseincludeprocessingconstraintsduetoneurologicallimitations,requirementsofcommunication,andcognitivebiasesspeciYictoourprimate/hominidevolutionaryheritage.AlthoughnoneofthesesourcesofconstraintplayadirectroleingeneratingspeciYiclinguisticstructures,theirpersistentinYluenceoverthecourseofcountlessthousandsofyearsoflanguagetransmissiontendstoweedoutlanguageformsthatarelesseffectiveatdisambiguatingreference,hardertoacquireatanearlyage,demandsigniYicantcognitiveeffortandprocessingtime,andareinconsistentwiththedistinctivewaysthatprimatebrainstendtointerprettheworld. Thislistofsourcesofconstraintonlanguagestructurecanbebrokendownintofourmaincategories:semioticconstraints,neuralprocessingconstraints,evolvedsensorimotorschemasandcognitivebiases,andpragmaticsocialcommunicationconstraints.ThesecategoriesandspeciYicconstraintswithineachcategoryarelistedinTable1(modiYiedfromDeacon2012)inanorderthatroughlycorrespondstotheirrelativestrengthofinYluenceonlanguagestructure.ThecombinedeffectofthesemultipleconstraintssigniYicantlyreducesthe“phasespace”ofprobablelanguageforms(shownasacomplexVenndiagraminFigure3).Differentlinguisticparadigmsmayprioritizeoneoneortheotherofthesemajorcategoriesofconstrainttoexplaincertainhighlyregularstructuralfeaturesoflanguage.Forexample,cognitivegrammarsoftenhighlighttheinYluencesofsensorimotorschemas&cognitivebiases,whereassystemicfunctionallinguisticapproachesplaceconsiderableemphasisonthepragmaticsofsocialcommunication.Inthefollowingdiscussion,however,Iwillfocusonlyonsomeofthemostubiquitoussemioticconstraints.

Table1.

A.Semioticconstraints1. Recursiveaffordance(onlysymbolscanprovidenon-destructive[opaque]recursion

acrosslogicaltypes)2. Predicationstructure(symbolsmustbeboundtoindicesinordertorefer)

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3. Transitivityandembeddingconstraints(indexicalitydependsonimmediatecorrelationandcontiguity,andistransitive)

4. QuantiYication(symbolizedindicesneedre-speciYication).Semioticconstraintscanbediscoveredpragmaticallyand‘guessed’priorto

languagefeedback(becauseofanalogiestonon-linguisticiconicandindexicalexperiences).

B.Neuralprocessingconstraints6. Chunking-branchingarchitecture(mnemonicconstraint)7. Algorithmicregularization(proceduralautomatization)8. Neuralsubstrateswillvaryonthebasisofprocessinglogic,notlinguisticcategories

(thereshouldbelanguage-speciYiclocalizationdifferences)

C.Evolvedsensorimotorschemasandcognitivebiases9. Standardschema/frameunits(viacognitiveborrowing)10.Vocaltakeover(anoptimalmediumformimicry)

D.Pragmaticcommunicationconstraints11.Pragmaticconstraints(communicationrolesanddiscoursefunctions)12.Culture-speciYicexpectations/prohibitions(e.g.distinctiveconventionsofindication,

waysofmarkingdiscourseperspective,prohibitionsagainstcertainkindsofexpressions,etc.)

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Figure3.Venndiagramshowinghowoverlappingconstraintsvastlyreducethe“phasespace”ofpossibleformsoflanguage.

Perhapsthemostradicalimplicationofthisanalysisisthatmostimportantandubiquitoussourceofconstraintsonlanguageorganizationariseneitherfromnaturenorfromnurture.Thatis,theyarenottheresultofbiologicalevolutionproducinginnatepredispositionsandtheyarenotderivedfromthedemandsofdiscourseortheaccidentsofculturalhistory.SemioticconstraintsarethosethatmostdirectlyreYlectthegrammaticalcategories,syntacticlimitations,andphrasalorganizationoflanguage.Theyareinarealsenseaprioriconstraints,thatprecedeallothers.ConsequentlytheyaremostoftenconfusedwithinnateinYluences.

Recursiveaffordance:Inarecentandnowwell-knowntheoreticalreviewofthelanguageoriginsproblem

(Hauser,Chomsky,&Fitch,2002)NoamChomskyappearedtoretreatfromanumberofearlierclaimsabouttheinnate‘faculty’forlanguage.Inhisnewminimalistprogramheinsteadfocusesontheubiquityofthehierarchiccombinatorialstructureoflanguageandtherecursiveapplicationofanoperationdescribedas“merge.”Thisshiftinfocusdoublesdownonhislong-terminsistencethatwhatmakesthehumanminduniqueisaninnatecapacitytohandlerecursiverelationships.Mostlanguagesdoindeedmakeextensiveuseofrecursivecombinatorialoperationsthatarenotfoundinnonhumancommunication.Likemanyrelatedclaimsforaninnategrammaticalfaculty,however,thisonealsofollowsfromareductionisticconceptionofsymbolicreference.Ifinsteadwerecognizethatonlyhumancommunicationissymbolic,whereasnon-humancommunicationislimitedtoiconicandindexicalcommunication,anotherpossibleexplanationforthisuniquelyhumancognitivedifferencebecomesavailable:recursionisonlypossiblesymbolically.

Becausethesignvehiclesusedforsymboliccommunication(e.g.words)requirenointrinsicpropertieslinkingthemtotheirreferents,theycanrefertooneanotherortocombinationsofothersymbolswithoutequivocation.Thisallowssubstitutionsthatcross-logical-type(e.g.partforwhole,memberforclass,wordforphrase)andthusacrosshierarchiclevelsinlinguisticcommunications.Neithericonsnorindicescanreferacrosslogicaltypesbecauseoftheinvolvementofsignvehicleproperties(e.g.similarityofform,correlationinspaceortime)indeterminingreference.Butbecauseoftheindependenceofsignvehiclepropertiesfromtheobjectsofreference,symbolscanrepresentothersymbolicrelationshipsincludingnearlyunlimitedlevelsofcombinationsofsymbols(suchasphrases,wholesentences,andevennarratives).Recursionisnotthereforeanoperationthatmustbe“added”tohumancognitionoverandabovesymboliccapabilities.Itisacombinatorialpossibilitythatcomesforfree,sotospeak,assoonassymbolicreferenceisavailable.Sotheabsenceofrecursioninanimalcommunicationisnomoreofamysterythantheabsenceofsymboliccommunication.Itissimplyduetotheirlackofsymbolicabilities.

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Thoughrecursionismadeavailablewithsymboliccommunication,itneednotbetakenadvantageof.Soitspaucityinchildlanguageandpidgins,aswellasitsabsenceinsomelanguages(e.g.Everett,2005)isnotevidenceagainstitsuniversalavailabilityinlanguage.Recursionisanimportantmeansforoptimizinglinguisticcommunicationbecauseitprovidesawaytocondensesymbolstrings.Forexample,repeatedrecursiveoperationsmakeitpossibletouseasingleword(e.g.pronoun)orphrase(e.g.anaphor)torefertoanextensivecorpusofpriordiscourse.Thisnotonlyoptimizescommunicativeeffort,italsoreducesworkingmemoryload.Nevertheless,recursionalsocreatesnew‘record-keeping’demandsthathelptoavoidtheconfusionsmadepossiblebythiscondensation.Thisrequiresincorporatingiconicandindexicalconstraintsintothewayssymbolscanbecombined.Theseinfrasymbolicconstraintsontherelationshipsbetweenwordsconstitutethecorefeaturesofgrammarandsyntax.

Predicationstructure:AnothernearlyubiquitoussemioticconstraintisreYlectedinthecombinatorial

chunkingthatconstitutesphraseandsentencestructures.Combinatorialunitssuchascomplexwords,clauses,andsentencesarecomposedofelementsthatnecessarilycomplementoneanother’ssemioticfunctions.Inotherwordswhatcanbe“merged”inawaythatconstitutesarecursivelyhigherordercombinatorialunitishighlyconstrained.Suchafunctionalunit,mustincludeatleasttwosemioticallydistinctcomponents,oneoperatingontheother.Forexample,alllanguagesrequireatleastadyadicsententialstructure,i.e.somethinglikeasubject-predicateoratopic-commentsententialform.Althoughholophrasticutterances,commands,andexpletives,arenotuncommon,theytypicallyareembeddedinapragmaticcontextinwhichwhattheyrefertoismadesalientbyimmediateembeddinginasemioticcontextthatYixesthereference;typicallysomesalientfeatureoftheimmediatephysicalorsocialcontext.IthasbeensuggestedthatthisubiquitousstructuremightreYlectanaction-object,agent-patient,orwhat-wheredichotomy.Buttheeasewithwhichthesecognitivecategoriescanbeinterchangedintheirgrammaticalrolesindicatesthatthereisamorebasiccommonconstraintbehindall.

Sincelongbeforeeffortstoformalizelogicalinference,scholarsrecognizedthatisolatedtermsexpressasensebutlackspeciYicreferenceunlesstheyareembeddedinacombinatorialconstructionroughlycorrespondingtoaproposition.TheassignmentofaspeciYicreferencetoanexpressionorformulaandthustomakeanassertionaboutsomethingiscalledpredication.Insymboliclogic,forexample,awell-formed(i.e.referring)expressionrequiresbothafunctionandanargument(i.e.thattowhichthefunctionisapplied).Firstorderpredicatelogicisoftenconsideredthesemanticskeletonforpropositionalstructureinlanguage,thoughitsprimaryformisseldomexplicitlyexhibitedinnaturallanguage.Itischaracterizedbya“predicate(argument)”structureoftheformF(x),whereFisafunctionandxisavariableor“argument”operatedonbythatfunction.Suchanexpressionisthebasicatomicunitofpredicatelogic.Suchanexpressionmayrefertoanevent,state,orrelationship,andtherecanbeone-,two-,three-andzero-placepredicatesdeterminedbyhowmanyargumentstheytake.Soforexamplethefunction“lives”typicallyisaone-placepredicate,“likes”isatwoplacepredicate,and“gives”isathree-placepredicate.

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Thissuggeststhefollowinghypothesis:Predicate(argument)structureexpressesthedependencyofsymbolicreferenceonindexicalreferenceasinSymbol(index).Oncesourceofevidenceforthissemioticdependencyisimplicitinthewaythatdeicticprocedures(e.g.pointingandotherindicativegestures)areusedtohelpYixthereferenceofanambiguoustermordescription,andcanevenbesubstitutedforthesubjectsandargumentsofasentence.Thusforexample,utteringtheword“smooth”inarandomcontextonlybringsattentiontoanabstractproperty,butwhenutteredwhilerunningone’shandalongatabletoporpointingtothewavelesssurfaceofalake,referenceistherebyestablished.ItcanalsoreferevenifutteredinisolationofanyovertindexinasocialcontextwherethespeakerandlistenerhavetheirjointattentionfocusedonthesameYlawlessaction.Inthiscase,aswithholophrasticutterancesingeneral,thesymbolicreferenceisestablishedbyimplicitindicationpresupposedinthepragmaticsofthecommunicativeinteraction.Indeed,whereexplicitindexingisnotprovided,itisassumedthatthemostsalientagreeingaspecttotheimmediatecontextistobeindicated.Ingeneral,then,anysymbolicexpressionmustbeimmediatelylinkedtoanindexicaloperationinordertorefer.Withoutsuchalinkthereissensebutnoreference.

Thisisauniversalsemioticconstraint(thoughnotauniversalrule)thatismadeexplicitinlogicandisimplicitinthenecessaryrelationalstructureofsentencesandpropositions.Itisaconstraintthatmustbeobeyedinordertoachievetheestablishmentofjointreference,whichiscriticaltocommunication.Wherethisimmediatelinkismissingreferenceisambiguousandwherethisconstraintisviolated(e.g.bycombinationsthatscramblethiscontiguitybetweensymbolicandindexicaloperations;so-calledword-salad)referencetypicallyfails.

Thisconstraintderivesfromtheunmaskingofindexicalconstraintsimplicitintheinterpretationofsymbolicreference.Becausesymbolicreferenceisindirectand“virtual,”byitselfitcandetermineonlyungroundedreferentialpossibility.Thesubject,topic,orargument(=variable)performsalocativefunctionbysymbolizinganindexicalrelationship;apointingtosomethingelselinkedtoitinsomeactualphysicalcapacity(e.g.contiguouspragmaticortextualcontext).Thisreferencedeterminationcannotbeleftonlyinsymbolicformbecauseisolatedsymbols(e.g.wordsandmorphemes)onlyreferreciprocallytotheir“position”inthesystemornetworkofothersymbols.

TheimportanceofimmediatecontiguityinthisrelationshipreYlectstheprincipaldeYiningconstraintdeterminingindexicalreference.Indexicalreferencemustbemediatedbyphysicalcorrelation,contiguity,containment,causalityetc.,withitsobjectinsomeway.Indexicalityfailswithoutthisimmediacy.Thereare,ofcourse,manywaysthatthisimmediacycanbeachieved,butwithoutitnothingisindicated.Theseconstraintsonindexicalityareinheritedbythegrammaticalcategoriesandsyntacticorganizationofsentences,propositions,andlogicalformulae.

Tostatethishypothesisinsemioticterms:Asymbolmustbecontiguouswiththeindexthatgroundsitsreference(eithertotheworldortotheimmediateagreeingtextualcontext,whichisotherwisegrounded),orelseitsreferencefails.Contiguitythushasadoublyindexicalroletoplay.Itscontiguity(textuallyorpragmatically)withthesymbolizingsignvehiclepointstothissymbolandtheircontiguityinturnpointto

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somethingelse.Thisisanexpressionofonefurtherfeatureofindexicality:transitivityofreference.

Simplystated,apointerpointingtoanotherpointerpointingtosomeobjecteffectivelyenablestheYirstpointertoalsopointtothatobject.Thispropertyiscommonlyexploitedoutsideoflanguage.Thustheunevenwearonautomobiletiresindicatesthatthetireshavenotbeenorientedatapreciserightangletothepavement,whichmayindicatethattheyaremisaligned,whichmayinturnindicatethattheownerisnotparticularlyattentivetotheconditionofthevehicle.Similarlytheindexicalgroundingofcontentwordsinasentencecanalsobeindirect,butonlysolongasnonewsymbolicallyfunctioningwordisintroducedtobreakthislinearcontiguity.

Ofcourse,everywordormorphemeinasentencefunctionssymbolicallyandawordorphrasemaytakeonahigherordersymbolicorindexicalroleinitscombinatorialrelationshipstootherlanguageunitsatthesamelevel.ThisYlexibilityprovidesadiversityofsymbolizedindexicalrelations.So,forexample,argumentscanbereplacedbypronouns,andpronounscanpointtootherpredicatesandarguments,ortheycanpointoutsidethediscourse,orifalanguageemploysgendermarkingofnounsagender-speciYiedpronouncanrefertothenextmostcontiguousnounwithagreeinggenderexpressedinthepriorinteraction,evenifseparatedbymanynon-agreeingnounsandnounphrases.Asentencethatlacksinferrableindexicalgroundingofevenonecomponentsymbolicelementwillbejudgedungrammaticalforthisreason.However,thebasisforthisjudgmentbynonlinguistsisnotdeterminedwithrespecttoeitherexplicitrulesorconstraints.Itisdeterminedbythefactthatthesentencedoesn’thaveanunambiguousreference.

Theexceptionthatprovestherule,so-to-speak,isexempliYiedbyhighlyinYlectedand/oragglutinatedlanguageswhereindexicalmarkingisincorporateddirectlyintowordmorphology.IncomparisonwithEnglish,whichmaintainstheindexicalgroundingofmostofitssymbolicfunctionsbystrictwordorderconstraints,theselanguagestendtohaverelativelyfreewordorder.Thisleadstoaprediction:themorecompletelythatindexicalfunctionsareincorporatedintowordmorphologythelessrestrictivethesyntaxandviceversa.

Quanti>icationandtransitivity:RelatedtothisindexicalfunctionistheroleofquantiYicationinnaturallanguageand

symboliclogic.InlanguageonlynounsandtheargumentsofaverbrequirequantiYiers.Inlogicawell-formedexpressionrequiresmorethanjustafunctionanditsargument.Unambiguouspredicationrequires‘quantifying’theargument(unlessitisapropername).Thislatterrequirementandexceptionaretelling.InEnglish,quantiYiersincludesuchtermsas“a,”“the,”“some,”“this”,“these,”and“all.”Theseliterallytermsindicatethenumerosityofwhatisbeingreferredto,evenifjustinrelativeterms(suchas“some”).Propernamesaretheexceptionbecausetheyrefertosingleindividuals,whetheranindividualpersonornamedplace,likeacityorcountry.Referenceinthatcaseisunambiguous.Itcanalsobeunambiguousinthecaseofso-calledmasstermslike“water”orabstractpropertiessuchas“justice”sincetheyhavenoclearindividuality.Thisbasicstructuralconstraintisagainduetothecomplexinfrastructurebehindsymbolicreference.

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Wordslike“a”“the”“some”“many”“most”“all”etc.,symbolizethevirtualresultofvariousformsofiteratedindicationsorvirtualostentions(pointings).Theyareeffectivelyvirtualpointingsthattakeadvantageoftransitivecorrelationwithotherindexicalrelationships,suchasproximityinformation(“this”“that”)orpossessioninformation(“his”“your”)todifferentiateindexicality.

Analogoustothecaseofimplicitpresupposedindexicalityinholophrasticutterances,therearealsocontextualconditionswhereexplicitquantiYicationinlanguagemaybeunnecessary.Thisismostobviousincaseswherethepossibilityofspecifyingindividualsisinappropriate(asinsomemassnouns;e.g.“awater,”“allwaters,”“fewwaters”).Pronominalreferencedoesn’trequirequantiYicationbecauseitissuppliedbythetextthatitindicates(transitivityofindication).Butwhengeneraltermsaresubstitutedforpronounsorotherwordsservingovertindexicalfunctions(e.g.“this”or“that”)theyinevitablyrequiretheadditionofquantiYication.Therearealso,ofcourse,manyotherexceptionstotheneedforquantiYication.PropernamesandnumbersdonotrequirequantiYicationwhentheyareusedtorefertoatypeasasingularclassbecauseindicatingwouldagainberedundant.

Consequencesofasemioticreframingoflanguage Thelongunquestionedassumptionthatsymbolicreferencelacksintrinsicstructurehastrickedlinguistsintopostulatingadhocrulesystemsandalgorithmstoexplainthestructuralconstraintsoflanguage.Failuretopayattentiontotheiconicandindexicalunderpinningsofsymbolicreferencehasadditionallyexaggeratedthecomplexityofthelanguageacquisitionproblem.Thismyopicavoidanceofsemioticanalysishasledtothedoctrineofaninnatelanguagefacultythatincludessomemodicumoflanguage-speciYicknowledgeandthisseeminglogicalnecessityhassupportedanalmostreligiousadherencetothisassumptiondespitethebiologicalimplausibilityofitsevolutionandthelackofneurologicalsupportforanycorrespondingbrainstructuresorfunctions. Unfortunatelycontemporarysemiotictheoryhasnotbeenofmuchassistance,primarilybecauseithasremainedapredominantlystructuraltheorytiedtoastatictaxonomicunderstandingofsemioticrelationships.Butwhensemiosisisunderstoodasaprocessofinterpretivedifferentiationinwhichdifferentmodesofreferenceareunderstoodasdynamicallyandhierarchicallyconstituentofoneanotherthesemanyconundrumsdissolveandtheseonceapparentlyindependentaspectsofthelanguagemysteryturnouttohaveacommonfoundation.

Soapproachinglanguageacquisitionsemioticallyprovidesafunctionalaccountthatcanunifyawiderangeofgrammaticalandsyntacticrelationships.Italsosuggeststhatournaïveintuitionabouttheselinguisticregularitiesmaybemoreaccuratethantheformalrule-governedapproachwouldsuggest.Anaïvespeakerseldomcommentsthatanungrammaticalsentencebreaksarule,andisgenerallyhard-pressedtoarticulatesucharule.Rather,theusualcommentisthatitjustsoundswrongorthatitdoesn’tmakesensesaidthatway.

Inthecaseofungrammaticalsentencesnaïvespeakersknowthereissomethingwrongeveniftheycan’tarticulateit,excepttosaythattheyareawkwardordifYiculttointerpret,andrequiresomeguessworktomakesenseofthem.Moreover,ineveryday

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conversationalspeech,theso-calledrulesofgrammarandsyntaxareonlyverylooselyadheredto.Thisisusuallybecausecommoninterestsandjointattentionaswellasculturallyregularizedinteractionframesprovidemuchoftheindexicalgrounding,andsoinsuchcircumstancesadherencetothesestricturestendstobepreferentiallyignored.Notsurprisingly,itwaswiththewidespreadincreaseinliteracythatscholarlyattentionbegantobefocusedongrammarandsyntax,andwitheducationinreadingandwritingthese“rules”begantogetformalized.Withthewrittenwordsharedimmediatecontext,commonpragmaticinterests,andimplicitpresuppositionsareminimally,ifatallavailabletoprovideindexicaldisambiguationandsolanguage-internalmaintenanceoftheseconstraintsbecomesmorecritical.

RichnessofthestimulusFinally,thissemioticfunctionalanalysisalsoprovidesanalternativeunderstanding

oftheso-calledpovertyofthestimulusproblemthatisofteninvokedtoarguethatknowledgeofgrammarmustbelargelyinnate.Consistentwiththefactthatnaïvespeakersaregenerallyunabletoarticulatethe“rules”thatdescribetheirunderstandingofwhatisandisnotawell-formedsentence,youngchildrenlearningtheirYirstlanguageareseldomcorrectedforgrammaticalerrors(incontrasttoregularcorrectionofpronunciation).

Moreover,childrendonotexplorerandomcombinatorialoptionsintheirspeech,testingtoYindtheonesthatareapprovedbyothers.Theymakeremarkablyprescientguesses.Ithasbeenassumed,therefore,thattheymusthavesomeimplicitunderstandingoftheserulesalreadyavailable.Infactchildrendohaveanextensiveandubiquitoussourceofinformationforlearningtoproduceandinterpretthesebasicsemioticconstraintsonpredication,butitisnotintheformofinnateknowledgeofgrammar.Itisintheformofknowledgeabouttheintrinsicconstraintsoficonicandindexicalreferencethatarediscoveredandinternalizedfromsocialinteractionspriorandduringinfancyandearlychildhood.Whenso,wehumanscomeintotheworldwithattentionalbiasesandbehavioraltendenciesthatfascilitatethislearning.

Firstofall,discerningindexicalityisacapacitythatisbasictoallcognition,animalandhuman.Itrequiresnospecialtrainingtobecomeadeptattheuseofcorrelation,contiguity,etc.,tomakepredictionsandthustounderstandindexicalrelationships.Thisisessentialtoallformsoflearning.

Evolvedpredispositionstopointorindicatedesiredobjectsorengagejointattentionhavelongbeenrecognizedasuniversallysharedhumanpredispositionsthatarepoorlydevelopedinotherspecies.Thisuniversalhumanindexicalpredispositionprovidestheidealscaffoldtosupportwhatmustbenegotiatedandmustbeprogressivelyinternalizedwithinlanguagestructure.Theearlyexperienceofcommunicatingwiththeaidofpointingalsoprovidesadditionalbackgroundtraininginunderstandingthenecessaryrelationshipbetweensymbolsandindices.

Second,althoughthereislittleifanycorrectionofthegrammarandsyntaxinchildren’searlyspeechthereisextensivepragmaticinformationaboutsuccessorfailuretoreferortointerpretreference.Thisisintheformofpragmaticfeedbackconcerningthecommunicationofunambiguousreference.Andthissourceofinformationattendsalmosteveryuseofwords.SoIwouldarguethatchildrendonot“know”grammarinnately,nordo

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theylearnrulesofgrammar,andyettheyneverthelessquickly“discover”thesemioticconstraintsfromwhichgrammarsderive.

Althoughitisnecessarytolearnhowagivenlanguageimplementstheseconstraints,theprocessisnotinductive.Itisnotnecessaryforachildtoderivegeneralrulesfrommanyinstances.Youngchildrenmakegoodguessesaboutsentencestructure—asthoughtheyalreadyknow“rules”ofgrammar—bytappingintomorenaturalanalogiestothenonlinguisticconstraintsandbiasesoficonicityandindexicality,andbygettingpragmaticfeedbackaboutconfusedorambiguousreference.

Universality? Semioticconstraintsshouldbeagent-independent,species-independent,language-independent,anddiscourse-independent.Theyhavebeenmistakenlyassumedtobeeitherinnatestructuresorelsederivedfromcognitiveschemasordeterminedbysensorimotorbiasesand/orsocialcommunicativepragmatics.Thoughtheyarepriortolanguageexperience,andsomeareprerequisitestosuccessfulsymboliccommunication,theyareneitherinnatenorsociallyderived. Theyareemergentfromconstraintsthatareimplicitinthesemioticinfrastructureofsymbolicreferenceandinterpretiveprocesses.Theyareinthiswayanalogoustomathematicaluniversals(e.g.primenumbers)thatare“discovered’(notinvented)asmathematicalrepresentationsystemsbecomemorepowerful.Thougheachformofsymbolmanipulationinmathematicshasbeenaninventionandthusaconventionofculture,wearenotfreetochoosejustanyformifwewanttomaintainconsistencyofquantitativerepresentation.Likewise,aslanguagesbecomemorecomplexandexpressivelypowerfultheyalsobecomemoreconstrained,andasliteraryformshavebecomeremovedfromthepragmaticcontextsofdaytodayspokencommunicationthelossofextralinguisticindexicalityhasdemandedmorerigorousadherencetosemioticconstraintsofgrammarandsyntaxtoavoidreferentialambiguityandequivocation.Itshouldnotbesurprising,then,thatitiswiththeriseofwidespreadliteracythatofYicialeffortstoestablishnormsof”proper”grammarandsyntax. SemioticconstraintsarethemostubiquitousinYluencesonlanguagestructure,andindeedtheyareevenmoreuniversalthanadvocatesofmentalesecouldhaveimagined;becausetheyarenothumanspeciYic.Theyareuniversalinthesensethattheconstraintsofmathematicsareuniversal.Theywouldevenberelevanttotheevolutionofsymboliccommunicationelsewhereintheuniverse.Buttheyarenotlikeexceptionless“rules.”Differentlanguages,everydayspokeninteractions,andartisticformsofexpressioncandivergefromtheseconstraintstovaryingextents,butatthecostofambiguityandconfusionofreference.Ingeneral,theseconstraintswillprobablybethemostconsistentregularitiesacrosstheworld’slanguagesbecausemeanstominimizethisdivergencewillbefavoredbythesocialevolution-likeprocessesoflanguagetransmissionfromgenerationtogeneration. OfcoursereYlectingonthelargerlistoffactorscontributingtothepropertiesmostwidelysharedacrosslanguages(cf.Table1)wemustacknowledgethecontributionsofbothhuman-speciYicneurologicalconstraintsaswellashistoricallycontingentsocialconstraints.Theytoocontributetothemanynearlyuniversalregularitiesthatcharacterize

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theWorld’slanguages.AndalthoughmanydoindeedreYlectinnateinYluencesthatmayhaveevolvedspeciYicallyduetotheircontributionstoeasinglanguageacquisitionandperformance,nonedeterminelanguageorganizationinagenerativesense.Rather,alongwiththeubiquitoussemioticconstraintsdiscussedinthisessay,theyaddtothecollectiveinYluencesofthewholeset.

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Deacon, Terrence (2012) Beyond The Symbolic Species. In T. Schilhab, F. Stjernfeldt, and T. Deacon (eds.) The Symbolic Species Evolved, Springer, pp. 9-38.

Everett, Daniel L. (2005) "Cultural Constraints on Grammar and Cognition in Pirahã: Another Look at the Design Features of Human Language" Current Anthropology 46 (4): 621–646

Harnad, Steven (1990) The symbol grounding problem. Physica D. Hauser, M., Chomsky, N., & Fitch, W. T. (2002). The faculty of language: What is it, who has it,

and how did it evolve? Science, 298, 1569-1579.Hume,David(1739-40)ATreatiseofHumanNature:BeinganAttempttoIntroducethe

ExperimentalMethodofReasoningintoMoralSubjects.Lewis, David (1969) Convention: A Philosophical Study. Princeton: Princeton University

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Vols. I-VI (ed. Charles Hartshorne and Paul Weiss), Vols. VII-VIII (ed. Arthur W. Burks) (1958), Cambridge, MA: Harvard University Press.

Raczaszek-Leonardi,JoannaandDeacon,Terrence(inprep.)Thesymbolungroundingproblem.

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