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Minar, Nicholas J.; Lewkowicz, David J. – Developmental Science, 2018
We tested 4-6- and 10-12-month-old infants to investigate whether the often-reported decline in infant sensitivity to other-race faces may reflect responsiveness to static or dynamic/silent faces rather than a general process of perceptual narrowing. Across three experiments, we tested discrimination of either dynamic own-race or other-race faces…
Descriptors: Infants, Age Differences, Attention, Visual Discrimination
Lewkowicz, David J.; Leo, Irene; Simion, Francesca – Infancy, 2010
Previous studies have shown that infants, including newborns, can match previously unseen and unheard human faces and vocalizations. More recently, it has been reported that infants as young as 4 months of age also can match the faces and vocalizations of other species raising the possibility that such broad multisensory perceptual tuning is…
Descriptors: Neonates, Nonverbal Communication, Visual Stimuli, Visual Perception

Lewkowicz, David J. – Developmental Psychology, 1994
Examined rate-based intersensory matching in infants by habituating them to concordant or discordant auditory-visual stimuli. Found a preference for the visual stimulus that moved at a novel velocity, indicating that the temporal attributes of the visual component dominated responsiveness. Found only limited evidence of intersensory matching. (WP)
Descriptors: Auditory Perception, Auditory Stimuli, Infants, Perceptual Development
Neil, Patricia A.; Chee-Ruiter, Christine; Scheier, Christian; Lewkowicz, David J.; Shimojo, Shinsuke – Developmental Science, 2006
Previous studies have shown that adults respond faster and more reliably to bimodal compared to unimodal localization cues. The current study investigated for the first time the development of audiovisual (A-V) integration in spatial localization behavior in infants between 1 and 10 months of age. We observed infants' head and eye movements in…
Descriptors: Cues, Eye Movements, Infants, Probability

Lewkowicz, David J. – Developmental Psychology, 1985
Three studies were designed to examine infants' bisensory responsiveness to temporally modulated stimulation by varying frequency while keeping intensity constant, by varying both frequency and intensity together, and by varying intensity while keeping temporal frequency constant. Findings indicate that sound influences visual preferences via…
Descriptors: Auditory Discrimination, Auditory Stimuli, Infants, Responses

Lewkowicz, David J.; Turkewitz, Gerald – Child Development, 1981
Investigates intersensory interaction between auditory and visual stimulation in newborn infants. Following auditory stimulation, newborns' visual preferences for light patches of different intensity were examined. Results indicate that newborns attend to quantitative variations in stimulation and that these variations reflect both the objective…
Descriptors: Arousal Patterns, Auditory Stimuli, Dimensional Preference, Infant Behavior