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1、BIOLOGICALPSYCHOLOGYELSEVIERBiologicalPsychology42(1996)413-423EffectsofworkdemandsonimmunoglobulinAandcortisolinairtrafficcontrollersHansZeie?,PeterBrauchli,HelenI.Joller-Jemelkab“DepartmentofBehavioralSciences,SwissFederalInstituteofTechnology,TurnerstrasseI.CH-8
2、092Zurich,SwitzerlandhDepartmentofClinicalImmunology,UniversityHospital,UniversityofZurich,CH-8044Zurich,SwitzerlandAbstractTheprofessionalactivityofairtrafficcontrollers(ATC)isoftenconsideredtoberatherstressful.Certaincharacteristicsofthisjobarelikelytoproducestre
3、ss;forexampleanATCcannotpredictwhenasituationbecomescriticalandheisnotabletoregulatetheworkload.Inordertoassesspsychophysiologicalstressreactionsinthisworkingsituation,salivasamplesweretakenfrom158maleairtrafficcontrollersbeforeandaftereachoftwoworkingsessions.Inco
4、ntrasttotheexpectedimmunosuppressiveeffects,theworkingsessionscausedamarkedincreaseintheconcentrationandsecretionrateofsalivaryimmunoglobulinA(sIgA),aswellasintheconcentrationofsalivarycortisol.TheincreaseinsIgA,however,wasnotcorrelatedwiththesalivarycortisolrespon
5、seorwiththeamountofactualorperceivedworkload,whereasthecortisolresponsewascorrelatedwithbothworkloadmeasures.ItissuggestedthatpositiveemotionalengagementisresponsiblefortheobservedsIgAincreaseandthatmeasuringthisphysiologicalresponsemaybeavaluabletoolfordifferentia
6、tingbetweenpositiveandnegativestresseffectsorbetweensuccessfulandunsuccessfuladaptationorcopingwithsituationaldemands.Keywords:Airtrafficcontrollers;Cortisol;ImmunoglobulinA;Psychoneuroimmunolo-gy;Workdemands;Workstress1.IntroductionPsychoneuroimmunologicalresearch
7、hasshownthatpsychosocialfactors,suchasstress,socialsupport,andemotionmayaffectsusceptibilitytoinfectiousdiseasebyinfluencingtheimmunesystem(Ader,Felten&Cohen,*Correspondingauthor.0301-0511196/$15.00@1996ElsevierScienceB.V.AllrightsreservedSSDI0301-0511(95)05170-F41
8、4H.Zeieretal.IBiologicalPsychology42(1996)413-4231991).Moststudieshaveinvestigatedtheeffectsofstressonvariouscom-ponentsoftheimmunesystemandhavef
