Abstract：
:Many studies have shown that infants prefer infant-directed (ID) speech to adult-directed (AD) speech. ID speech functions to aid language learning, obtain and/or maintain an infant's attention, and create emotional communication between the infant and caregiver. We examined psychophysiological responses to ID speech that varied in affective content (i.e., love/comfort, surprise, fear) in a group of typically developing 9-month-old infants. Regional EEG and heart rate were collected continuously during stimulus presentation. We found the pattern of overall frontal EEG power was linearly related to affective intensity of the ID speech, such that EEG power was greatest in response to fear, than surprise than love/comfort; this linear pattern was specific to the frontal region. We also noted that heart rate decelerated to ID speech independent of affective content. As well, infants who were reported by their mothers as temperamentally distressed tended to exhibit greater relative right frontal EEG activity during baseline and in response to affective ID speech, consistent with previous work with visual stimuli and extending it to the auditory modality. Findings are discussed in terms of how increases in frontal EEG power in response to different affective intensity may reflect the cognitive aspects of emotional processing across sensory domains in infancy.
journal_name
Brain Cognjournal_title
Brain and cognitionauthors
Santesso DL,Schmidt LA,Trainor LJdoi
10.1016/j.bandc.2007.02.008subject
Has Abstractpub_date
2007-10-01 00:00:00pages
14-21issue
1eissn
0278-2626issn
1090-2147pii
S0278-2626(07)00059-0journal_volume
65pub_type
杂志文章abstract：:The prevailing concept in modern neuroscience is that neuron networks play a dominant role in the functioning of the nervous system, whereas the role of individual neurons is rather insignificant. This concept suggests that "individuality" of single neurons is primarily determined by their place in a network rather th...
journal_title：Brain and cognition
pub_type： 杂志文章,评审
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pub_type： 杂志文章
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更新日期：2000-06-01 00:00:00
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journal_title：Brain and cognition
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doi：10.1006/brcg.1997.0874
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journal_title：Brain and cognition
pub_type： 杂志文章,评审
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pub_type： 杂志文章,meta分析
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更新日期：2003-11-01 00:00:00
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doi：10.1006/brcg.1996.0039
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journal_title：Brain and cognition
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journal_title：Brain and cognition
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journal_title：Brain and cognition
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更新日期：2007-11-01 00:00:00
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