Document Detail

Brain and personality bases of insensitivity to infant cues in neglectful mothers: An event-related potential study.
MedLine Citation:
PMID:  21262046     Owner:  NLM     Status:  In-Data-Review    
This investigation examined the neural and personality correlates of processing infant facial expressions in mothers with substantiated neglect of a child under 5 years old. Event-related potentials (ERPs) were recorded from 14 neglectful and 14 control mothers as they viewed and categorized pictures of infant cries, laughs, and neutral faces. Maternal self-reports of anhedonia and empathy were also completed. Early (negative occipitotemporal component peaking at around 170 ms on the scalp [N170] and positive electrical potential peaking at about 200 ms [P200]) and late positive potential (LPP) components were selected. Both groups of mothers showed behavioral discrimination between the different facial expressions via reaction time and accuracy measures. Neglectful mothers did not exhibit increased N170 amplitude at temporal leads in response to viewing crying versus laughing and neutral expressions compared to control mothers. Both groups had greater P200 and LPP amplitudes at centroparietal leads in response to viewing crying versus neutral facial expressions. However, neglectful mothers displayed an overall attenuated brain response in LPP that was related to their higher scores in social anhedonia but not to their empathy scores. The ERP data suggest that the brain's failures in the early differentiation of cry stimuli and in the sustained processing of infant expressions related to social anhedonia may underlie the insensitive responding in neglectful mothers. The implications of these results for the design and evaluation of preventive interventions are discussed.
María José Rodrigo; Inmaculada León; Ileana Quiñones; Agustín Lage; Sonia Byrne; María Antonieta Bobes
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Development and psychopathology     Volume:  23     ISSN:  1469-2198     ISO Abbreviation:  Dev. Psychopathol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2011-01-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8910645     Medline TA:  Dev Psychopathol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  163-76     Citation Subset:  IM    
University of La Laguna.
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