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Colombo, John; Shaddy, D. Jill; Anderson, Christa J.; Gibson, Linzi J.; Blaga, Otilia M.; Kannass, Kathleen N. – Infancy, 2010
Despite the use of visual habituation over the past half century, relatively little is known about its underlying processes. We analyzed heart rate (HR) taken simultaneous with looking during infant-controlled habituation sessions collected longitudinally at 4, 6, and 8 months of age with the goal of examining how HR and HR-defined phases of…
Descriptors: Visual Stimuli, Attention, Age Differences, Metabolism
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Colombo, John; Kannass, Kathleen N.; Jill Shaddy, D.; Kundurthi, Shashi; Maikranz, Julie M.; Anderson, Christa J.; Blaga, Otilia M.; Carlson, Susan E. – Child Development, 2004
Infants were followed longitudinally to document the relationship between docosahexaenoic acid (DHA) levels and the development of attention. Erythrocyte (red-blood cell; RBC) phospholipid DHA (percentage of total fatty acids) was measured from infants and mothers at delivery. Infants were assessed in infant-control habituation at 4, 6, and 8…
Descriptors: Mothers, Cognitive Development, Infants, Habituation
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Shaddy, D. Jill; Colombo, John – Infancy, 2004
This study examined 4- and 6-month-olds' responses to static or dynamic stimuli using behavioral and heart-rate-defined measures of attention. Infants looked longest to dynamic stimuli with an audio track and least to a static stimulus that was mute. Overall, look duration declined with age to the different stimuli. The amount of time spent in…
Descriptors: Visual Stimuli, Attention, Infants, Age Differences