Preferential Looking/Head-Turn Preference Procedures

Carmel Houston-Price

In: Encyclopedia of Language Development

Preferential Looking/Head-Turn Preference Procedures

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  • The preferential looking paradigm (PLP) and head-turn preference procedure (HPP) are experimental methodologies employed by researchers to measure infants' and toddlers' spontaneous looking and listening behaviors toward visual and auditory stimuli. The PLP typically compares infants' looking times toward pairs of pictures presented side by side, while the HPP measures the duration of infants' listening times to differing streams of sound. The techniques allow the investigation of aspects of early perceptual, cognitive, and linguistic development that would otherwise be difficult to explore in young infants, such as their ability to discriminate between stimuli, their natural or experimentally induced preferences for stimuli, and their knowledge or learning in relation to the stimuli presented. Use of the PLP to explore infants' discrimination of visual stimuli was first ...

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