No abstract available
MeSH terms
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Adaptation, Psychological
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Attention
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Auditory Perception
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Cerebral Cortex / physiology
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Child Development*
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Cognition
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Concept Formation
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Electromyography
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Facial Expression* / physiology
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Heart Rate
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Humans
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Infant
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Infant, Newborn
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Laughter* / physiology
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Sleep, REM
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Smiling* / physiology
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Social Behavior
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Stress, Psychological
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Visual Perception