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  • Title: Three methodologies for measuring the acoustic startle response in early infancy.
    Author: Agnoli S, Franchin L, Dondi M.
    Journal: Dev Psychobiol; 2011 Apr; 53(3):323-9. PubMed ID: 21400493.
    Abstract:
    The present study investigated whether three methodologies currently used in animal as well as human adult startle research could be adapted for measuring the startle response in 5-month-old infants. The three methods performed: an automated and computerized recording of the infants' whole-body motor reactions (Automated Infant Motor Movement Startle Seat, AIMMSS); a coding of the infants' facial muscular contractions involved in the startle response (FACS, Baby FACS); an analysis of the infants' eyeblink intensity in response to the startle probes (Eye-Blink Strength scale). The results showed that these methods accurately registered the latency and intensity parameters of the reactions to acoustic startle stimuli. A correlational analysis showed, also, that the three methods registered the same motor reaction measuring the infant acoustic startle response in a consistent way.
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