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EnglishWiththerecentadventofnewrecordingdevicesandaneasieraccesstosignalprocessingtools,researchersareincreasinglyexploringandstudyingthePupilDilation(PD)signal.Recently,numerousstudiespointedouttherelationsbetweenPDdynamicsandpsychophysiologicalstates.AlthoughitiswellknownthatPDiscontrolledbytheAutonomicNervousSystem(ANS),andANSresponsesarerelatedtoemotionalevents/stimuli,therelationshipbetweenemotionalstatesandPDisstillanopenissue.TheaimofthisstudyistodefinethestatisticalpropertiesofthePDsignal,tounderstanditsrelationwithANScorrelatessuchasHeartRateVariability(HRV)andrespiration(RESP),andtoexploreifPDcouldprovideinformationfortheevaluationofthepsychophysiologicalresponseofANStoaffectivetriggeringevents.ECG,RESP,andPDdatafrom13normalsubjectswererecordedduringamemoryrecallparadigm,andprocessedwithspectralandcross-spectralanalysis.OurresultsdemonstratethatvariabilityindicesextractedfromfastPDoscillations,notobservablethroughstandardcardiorespiratoryidentificationinthefrequencydomain,wouldbeabletodiscernpsychophysiologicalresponseselicitedbybasicemotionalstimuli.Astronglinearcouplingwasfoundbetweenthevariables,duetotheinfluenceofRESPonbothPDandHRVwithintheHighFrequency(HF)band,from0.15to0.45Hz.Mostimportantly,ourresultspointatPDfeaturesaspossiblecandidatesforcharacterizingbasicemotionalstimuli.
Characterization of affective states by pupillary dynamics and autonomic correlates, 2013-11-06.
| Autori: | Barbieri, Riccardo; Onorati, Francesco; Mainardi Luca; Mauri, Maurizio; Russo, Vincenzo |
| Data di pubblicazione: | 6-nov-2013 |
| Titolo: | Characterization of affective states by pupillary dynamics and autonomic correlates |
| Rivista: | |
| Nazione editore: | United Kingdom |
| Editore: | Sea Frontiers Incorporated |
| Volume: | 6 |
| Fascicolo: | 9 |
| Pagina iniziale: | 1 |
| Pagina finale: | 11 |
| Numero di pagine: | 11 |
| Revisione (peer review): | esperti anonimi |
| IF: | con ISI Impact Factor |
| Rilevanza: | internazionale |
| Lingua: | English |
| URL: | http://www.frontiersin.org/Neuroengineering/10.3389/fneng.2013.00009/abstract |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.3389/fneng.2013.00009 |
| Settore Scientifico Disciplinare: | Settore M-PSI/06 - Psicologia Del Lavoro E Delle Organizzazioni |
| Keywords: | pupildilation(PD),heartratevariability(HRV),autonomicnervoussystem(ANS),emotions, reconstruction,spectralanalysis,veryhighfrequencies,coherenceanalysis |
| Abstract: | Withtherecentadventofnewrecordingdevicesandaneasieraccesstosignalprocessingtools,researchersareincreasinglyexploringandstudyingthePupilDilation(PD)signal.Recently,numerousstudiespointedouttherelationsbetweenPDdynamicsandpsychophysiologicalstates.AlthoughitiswellknownthatPDiscontrolledbytheAutonomicNervousSystem(ANS),andANSresponsesarerelatedtoemotionalevents/stimuli,therelationshipbetweenemotionalstatesandPDisstillanopenissue.TheaimofthisstudyistodefinethestatisticalpropertiesofthePDsignal,tounderstanditsrelationwithANScorrelatessuchasHeartRateVariability(HRV)andrespiration(RESP),andtoexploreifPDcouldprovideinformationfortheevaluationofthepsychophysiologicalresponseofANStoaffectivetriggeringevents.ECG,RESP,andPDdatafrom13normalsubjectswererecordedduringamemoryrecallparadigm,andprocessedwithspectralandcross-spectralanalysis.OurresultsdemonstratethatvariabilityindicesextractedfromfastPDoscillations,notobservablethroughstandardcardiorespiratoryidentificationinthefrequencydomain,wouldbeabletodiscernpsychophysiologicalresponseselicitedbybasicemotionalstimuli.Astronglinearcouplingwasfoundbetweenthevariables,duetotheinfluenceofRESPonbothPDandHRVwithintheHighFrequency(HF)band,from0.15to0.45Hz.Mostimportantly,ourresultspointatPDfeaturesaspossiblecandidatesforcharacterizingbasicemotionalstimuli. |
| Numero degli autori: | 5 |
| Supporto: | Online |
| Data di accettazione: | 7-ott-2013 |
| Appare nelle tipologie: | 1.01 Articolo in rivista |
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