Document Detail


Activation of the right fronto-temporal cortex during maternal facial recognition in young infants.
MedLine Citation:
PMID:  18627358     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND/AIM: Within the first days of life infants can already recognize their mother. This ability is based on several sensory mechanisms and increases during the first year of life, having its most crucial phase between 6 and 9 months when cortical circuits develop. The underlying cortical structures that are involved in this process are still unknown. Herein we report how the prefrontal cortices of healthy 6- to 9-month-old infants react to the sight of their mother's faces compared to that of an unknown female face. METHODS: Concentrations of oxygenated haemoglobin [HbO2] and deoxygenated haemoglobin [HHb] were measured using near infrared spectroscopy (NIRS) in both fronto-temporal and occipital areas on the right side during the exposure to maternal and unfamiliar faces. RESULTS: The infants exhibited a distinct and significantly higher activation-related haemodynamic response in the right fronto-temporal cortex following exposure to the image of their mother's face, [HbO2] (0.75 micromol/L, p < 0.001), as compared to that of an unknown face (0.25 micromol/L, p < 0.001). CONCLUSION: Event-related haemodynamic changes, suggesting cortical activation, in response to the sight of human faces were detected in 6- to 9-month old children. The right fronto-temporal cortex appears to be involved in face recognition processes at this age.
Authors:
Jakob Carlsson; Hugo Lagercrantz; Linus Olson; Gordana Printz; Marco Bartocci
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta paediatrica (Oslo, Norway : 1992)     Volume:  97     ISSN:  0803-5253     ISO Abbreviation:  Acta Paediatr.     Publication Date:  2008 Sep 
Date Detail:
Created Date:  2008-09-10     Completed Date:  2008-11-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9205968     Medline TA:  Acta Paediatr     Country:  Norway    
Other Details:
Languages:  eng     Pagination:  1221-5     Citation Subset:  IM    
Affiliation:
Neonatal Research Unit Q2:07, Astrid Lindgren Children's Hospital, Karolinska Institute, Stockholm, Sweden. Jakob.carlsson@ki.se
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MeSH Terms
Descriptor/Qualifier:
Face
Female
Frontal Lobe / blood supply,  physiology*
Hemoglobins / analysis
Humans
Infant
Male
Mother-Child Relations*
Occipital Lobe / blood supply,  physiology*
Pattern Recognition, Visual / physiology*
Photography
Spectroscopy, Near-Infrared / methods*
Chemical
Reg. No./Substance:
0/Hemoglobins
Comments/Corrections
Comment In:
Acta Paediatr. 2008 Sep;97(9):1156-8   [PMID:  18782278 ]

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