PROJECT SUMMARY/ABSTRACT [Xnchanged from ParenW GranW] MXVic iV a VignaWXUe of Whe hXman e[SeUience. A XbiTXiWoXV, ancienW, and XniTXel\ hXman acWiYiW\, mXVic aSSeaUV acUoVV VocieWieV ZiWh UemaUkable diYeUViW\ and ZiWh SaUWicXlaU Vignificance eaUl\ in Whe lifeVSan: infanWV haYe SUecocial mXVic SeUceSWion abiliWieV and aUe highl\ moWiYaWed Wo liVWen Wo mXVic, Zhile SaUenWV ofWen SUodXce mXVic foU infanWV. Wh\ aUe Ze mXVical? WhaW feaWXUeV of mXVic dUiYe iWV effecWV on liVWeneUV? Can mXVic be leYeUaged Wo imSUoYe infanW and SaUenW healWh? HXman infanWV aUe helSleVV and need SaUenWV¶ aWWenWion Wo enVXUe WheiU VafeW\. A VimSle foUm of mXVic, infanW-diUecWed Vong, ma\ fXncWion aV a SoWenW foUm of SaUenWal aWWenWion. If Vo, When (1) infanW-diUecWed Vong VhoXld VhaUe feaWXUeV acUoVV all hXman cXlWXUeV, (2) infanW-diUecWed Vong VhoXld Ueliabl\ UedXce infanW diVWUeVV, and (3) incUeaVeV in Whe UegXlaUiW\ of SaUenWV¶ XVe of infanW-diUecWed Vong VhoXld imSUoYe infanW WemSeUamenW and SaUenW Zell-being. The VSecific aimV of WhiV UeVeaUch addUeVV each of WheVe SUedicWionV. AIM 1: Determine the uniYersal acoustical features of infant-directed song across human cultures. CoUSXV anal\VeV of aXdio UecoUdingV fUom 100 VocieWieV Zill deWeUmine Whe infanW-diUecWed Vong¶V XniYeUVal acoXVWical feaWXUeV, and e[SeUimenWV in childUen and adXlWV Zill deWeUmine XniYeUValV in SeUfoUmance VW\le and conWenW of infanW-diUecWed Vong. AIM 2: Test the short-term efficac\ of infant-directed song for regulating distress in infants. WiWh claVVic meWhodV fUom infanW WemSeUamenW UeVeaUch, e[SeUimenWV Zill WeVW infanW-diUecWed Vong¶V efficac\ in UedXcing diVWUeVV b\ Uandoml\ aVVigning SaUenWV Wo Ving oU VSeak Wo infanWV afWeU diVWUeVV iV indXced and WeVWing Whe laWenc\ Wo UecoYeU\ fUom diVWUeVV. FXUWheU e[SeUimenWV iVolaWe Whe acoXVWical feaWXUeV of mXVic WhaW SUodXce Whe laUgeVW main effecWV. AIM 3: E[amine long-term effects of parental song on infant temperament and parent Zell-being. TZo longiWXdinal VWXdieV Zill deWeUmine Whe caXVal effecWV of incUeaVeV in Whe XVe of infanW-diUecWed Vong on infanW behaYioU and SaUenW Zell-being. InfanW daWa Zill be collecWed Yia a neZ VmaUWShone aSS adminiVWeUing ecological momenWaU\ aVVeVVmenW and SaUenW an[ieW\, haSSineVV, and Velf-eVWeem Zill be WeVWed Yia ImSliciW AVVociaWion TaVkV and Velf-UeSoUWV. IMPACT. ThiV UeVeaUch Zill cUeaWe a YaUieW\ of XVefXl UeVoXUceV foU Whe UeVeaUch commXniW\: a neZ, e[Sanded coUSXV of mXVic fUom man\ Vmall-Vcale VocieWieV; YalidaWion of a neZ, minimall\ inYaViYe Sh\Viological moniWoUing deYice foU XVe in infanWV; a neZ meWhod foU meaVXUing infanW UecoYeU\ fUom diVWUeVV; a neZ Yideo coUSXV of infanW diVWUeVV indXcWion and UecoYeU\; and a neZ VmaUWShone aSS foU aVVeVVing infanW WemSeUamenW in Whe home. FXUWheU, WhiV ZoUk Zill SUoYide Whe fiUVW V\VWemaWic chaUacWeUi]aWion of Whe acoXVWical feaWXUeV WhaW XndeUlie infanW-diUecWed Vong, iW Zill deWeUmine ZheWheU mXVic iV a SaUWicXlaUl\ effecWiYe meanV of UegXlaWing infanW...