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1、华中科技大学硕士学位论文AbstractWiththe"HealthyChina"risingforanationalstrategy,foodsafetyissuesbecomethefocusofpublicattentiononceagain.Asaplatformfortheexchangeofriskinformationsharing,socialmediapromotedtheprocessofdemocratization,becomingacollectionanddistributioncentertodiscussavarietyofune
2、xpectedeventsandhottopics.Howtousesocialmediaaffectpublic’sfoodsafetyriskperceptionandfeedbackbehaviorisworthyoffurtherstudying.Thisresearchwasbasedonthemediausemotivationtheoryandriskcognitivetheory.Andthestudytrytoconstructamodelofsocialmedia’suseandpublicriskperception,thentheuseo
3、fstructuralequationmodelwastestedtorevealthesocialmediaerapublicriskperceptionandfoodsafetybehaviorrules.Paperdiscussestherelationshipbetweenknowledgeacquisition,negativeemotions,self-efficacy,mediatrust,mediausemotivationandriskperceptionandpublicparticipation.Theeffectivenessoffood
4、safetyriskperceptionforsocialmediausersandtheirfeedbackrelatedtoemotionalappealandbehaviorwerediscussedinordertofindhowthefoodsafetyriskinformationinsocialwillaffectdifferentuser’sriskperceptionandbehavior.Throughresearchwefoundthat,first,underthepreconditionofsocialmediause,thestudy
5、ofriskperceptionshouldbeparticularlyattentiontotheimpactoftheirnegativeemotions.Negativesentimentonsocialmediausersfoodsafetyriskperceptionandfeedbackbehaviorshowedastrongcorrelationeffects.Second,theinformationmotivationandsocialmotivationhavenodirecteffectonfoodsafetyriskperception
6、andbehavior.However,thesocialmotivationaffectstheriskperceptionthroughtheintermediaryroleofself-efficacy.Informationmotivationaffectsriskperceptionbynegativeemotionsandself-efficacy.Furthermore,Informationmotivationaffectsfeedbackbehaviorthroughknowledgeacquisition,negativeemotionsan
7、dmediatrust.Finally,weuseastandardizedparameterestimationresultsconfirmthatusersonsocialmediatodiscussthetopicofrisk,theabilitytounderstandtheirownfoodsafetystandards,todistinguishbetweenfakeandshoddyproductsknowledgeandinformationforthepublisher'scredibilityandotherfactorslarge,butt
8、heoutcomeisn
