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| Infant Behavior | 2 |
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| Age Differences | 1 |
| Comparative Analysis | 1 |
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| Child Development | 2 |
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| Barr, Ronald G. | 1 |
| Donzella, Bonny | 1 |
| Gunnar, Megan R. | 1 |
| Larson, Mary C. | 1 |
| Plewis, Ian | 1 |
| St James-Roberts, Ian | 1 |
| White, Barbara Prudhomme | 1 |
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Peer reviewedWhite, Barbara Prudhomme; Gunnar, Megan R.; Larson, Mary C.; Donzella, Bonny; Barr, Ronald G. – Child Development, 2000
Examined behavioral/physiological responses of 2-month-olds during physical examinations. Found that colic infants cried twice as much, cried more intensely, and were more inconsolable than control infants. Heart rate, vagal tone, and cortisol measures showed no appreciable difference. At home, colic infants displayed a blunted rhythm in cortisol…
Descriptors: Comparative Analysis, Crying, Heart Rate, Infant Behavior
Peer reviewedSt James-Roberts, Ian; Plewis, Ian – Child Development, 1996
Used multilevel analyses to examined the amounts of time infants spent asleep, awake, content, feeding, fussing, and crying at 2, 6, 12, and 40 weeks of age. Found that day-to-day fluctuations accounted for between 44 and 53% of the variance in amounts of time sleeping, fussing, and crying. (MDM)
Descriptors: Age Differences, Crying, Developmental Stages, Eating Habits
