Early Sensitivity to Fearful Faces in 3.5 Months Infants · Early Sensitivity to Fearful Faces in...
Transcript of Early Sensitivity to Fearful Faces in 3.5 Months Infants · Early Sensitivity to Fearful Faces in...
Early Sensitivity to Fearful Faces in 3.5 Months Infants
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[email protected] 'ontact=U
Conclusions
■UPsychometricUapproachUtoUemotionUperceptionUinUinfants■UEnhanced5detection5of5fearful5faces5and5eyes5in5infancy■UMostly5stable5developmental5trajectory■U5videnceUforUanUearlyUpulvinarhamygdalaUroute[■UNeuronalUcorrelates[
Detection advantage of faces with fearful eyes
■U/ogisticUmixedhmodelUofUdetectionUinUnoisyUtrialsU0?éUtoUMéFUsignalUstrengthS■U'ontrollingUforUtrialhtohtrialUvariationsUinUfaceUandUeyesUsignalUstrength
PsychometricScurveSmodeling
LookingSpreferenceSforStheSfaceSside
■U±ainUeffectUofU5motionU0χ²0’SU9U%g)²fUpU9Uégéé²S■UNoUinteractionUwithUTge
CustomSfaceSdetectionSparameters:SInfantSd'
■UWnteractiveUeffectUofU5motionUandU"eatureUvisibilityU0χ²0’SU9U%gx²fUpU9Uégé’’S■UNoUinteractionUwithUTge
Measuring face versus noise detection in infancy
■U'apitalizesUonUtheUstrongUpreferenceUforUfacesUinUinfancyU[’]■UTrialhlevelUpreferenceUforUtheUfaceUsideUcorrelatesUwithUpreferenceUatUearlyUUUUdetectionUpeakU0Pearson8sUrU9Uég)²fUpU7Uégéé’S
LookingSpreferenceSforStheSfaceSside
CustomSfaceSdetectionSparameters
■U'ompareUeachUlook8sUdurationUUUUwithUdistributionUofUlooksUUUUtoUfaceUandUnoise■UHeneratesUhitsfUmissesfUggg■UWfUmedian"aceU7UmedianNoisegroupUmedianUtresholdUisUusedU
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to pure noiseto face in noise
Introduction
Background
■UTttentionalUandUperceptualUsalienceUofUfearUfacesUinUadults■UTttentionalUsensitivityUtoUfearUemergesUatU%UmonthsUofUage■UPulvinarUrouteUpredictsUattractionUtoUfearUfacesUfromUbirth■UWhenUdoesUtheUperceptualUsensitivityUemerge[Objectives
■UWncreasedUdetectionUofUfearUfacesUinUinfants[■U<evelopmentalUshiftUforUfearUatU%Umonths[
References=U[’]UHelskovU-UqouiderU:é’éU[:]U/undqvistUetUalgU’²²MU[?]UWillenbockelUetUalgU:é’éU[x]U<akinUetUalgU:éé:U[(]URodgerUetUalgU:é’(
Methods
■USixtyhfourU?g(UmonthUoldUinfantsU0?’UgirlsSfUmeanUageU’’)Udays■USixtyhfourU%UmonthUoldUinfantsU0?’UgirlsSfUmeanUageU’²’Udays■USixtyhfourU’:UmonthUoldUinfantsU0?:UgirlsSfUmeanUageU?)%Udays
■USmilingU-UfearfulUfacesUfromU%UmalesUandU%UfemalesU[:]fUUUUgrayUscaledfUalignedU-Ucropped■U/uminancefUglobalUcontrastU-UspatialUfrequenciesUequatedU[?]U■UWeighted5mean-phase5noise5preserves5contrast5D5frequencies5[4,5]
Participants
Stimuli
"ourUconditions=UhU±alew"emalehU"earwSmile
’éUsMéFUsignal
randomUorderingUofUfacesfUsignalUlevelfUfaceUside
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’ééFUsignal ’éUs%éFUsignal
face in noise
pure noise
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