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| Infancy | 7 |
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| Agnetta, Bryan | 1 |
| Colombo, John | 1 |
| Furrer, Stephanie D. | 1 |
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| Hollich, George | 1 |
| Hsu, Hui-Chin | 1 |
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| Porter, Christin L. | 1 |
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Direct linkAgnetta, Bryan; Rochat, Philippe – Infancy, 2004
Two experiments used a mutual imitation paradigm to assess 9-, 14-, and 18-month-old infants' developing understanding of intentions in others. In the first study, 1 experimenter imitated the infants' actions, and another experimenter performed contingent but different actions on an identical toy. From 9 months of age, infants show discrimination…
Descriptors: Infants, Imitation, Games, Age Differences
Lipton, Jennifer S.; Spelke, Elizabeth S. – Infancy, 2004
Six experiments investigated infants' sensitivity to numerosity in auditory sequences. In prior studies (Lipton & Spelke, 2003), 6-month-old infants discriminated sequences of 8 versus 16 but not 8 versus 12 sounds, and 9-month-old infants discriminated 8 versus 12 but not 8 versus 10 sounds, when the continuous variables of rate, sound duration,…
Descriptors: Experimental Psychology, Numbers, Auditory Stimuli, Age Differences
Younger, Barbara A.; Hollich, George; Furrer, Stephanie D. – Infancy, 2004
From Aesop to Sun Tzu, the importance of working together has long been acknowledged. Yet as long as cooperation has existed, so have the difficulties associated with it. Pooling two fields might mean twice the power, but this union also brings twice the jargon, twice the competing theories, and twice the head butting. Nonetheless, in this…
Descriptors: Infants, Correlation, Classification, Age Differences
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
Gredeback, Gustaf; von Hofsten, Claes – Infancy, 2004
Infants' ability to track temporarily occluded objects that moved on circular trajectories was investigated in 20 infants using a longitudinal design. They were first seen at 6 months and then every 2nd month until the end of their 1st year. Infants were presented with occlusion events covering 20% of the target's trajectory (effective occlusion…
Descriptors: Infants, Motion, Eye Movements, Age Differences
Guajardo, Jose J.; Woodward, Amanda L. – Infancy, 2004
Three studies investigated the role of surface attributes in infants' identification of agents, using a habituation paradigm designed to tap infants' interpretation of grasping as goal directed (Woodward, 1998). When they viewed a bare human hand grasping objects, 7- and 12-month-old infants focused on the relation between the hand and its goal.…
Descriptors: Infants, Habituation, Cognitive Processes, Visual Stimuli
Hsu, Hui-Chin; Porter, Christin L. – Infancy, 2004
This study investigated the developmental continuity, stability, and organization of infants' behavioral response to mild stress from 1 to 3 months of age. Changes in infant stress reactivity were expected to coincide with a suspected neurobiological shift around the 2nd month. A total of 53 infants and their mothers participated in this study. At…
Descriptors: Video Technology, Infants, Developmental Continuity, Responses
