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Infant facial expression

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7 papers 0 to 25 followers
By Grant D. Nelson, PhD Professor & Clinician of Health Psychology & Behavioral Medicine
Xiaoyu Ding, Wen-Sheng Chu, Fernando De la Torre, Jeffery F Cohn, Qiao Wang
Automatic facial Action Unit (AU) detection from video is a long-standing problem in facial expression analysis. AU detection is typically posed as a classification problem between frames or segments of positive examples and negative ones, where existing work emphasizes the use of different features or classifiers. In this paper, we propose a method called Cascade of Tasks (CoT) that combines the use of different tasks (i.e., frame, segment and transition) for AU event detection. We train CoT in a sequential manner embracing diversity, which ensures robustness and generalization to unseen data...
2013: Proceedings
Aleix M Martinez
We argue that to make robust computer vision algorithms for face analysis and recognition, these should be based on configural and shape features. In this model, the most important task to be solved by computer vision researchers is that of accurate detection of facial features, rather than recognition. We base our arguments on recent results in cognitive science and neuroscience. In particular, we show that different facial expressions of emotion have diverse uses in human behavior/cognition and that a facial expression may be associated to multiple emotional categories...
2011: Proceedings
Tara M Chaplin, Amelia Aldao
Emotion expression is an important feature of healthy child development that has been found to show gender differences. However, there has been no empirical review of the literature on gender and facial, vocal, and behavioral expressions of different types of emotions in children. The present study constitutes a comprehensive meta-analytic review of gender differences and moderators of differences in emotion expression from infancy through adolescence. We analyzed 555 effect sizes from 166 studies with a total of 21,709 participants...
July 2013: Psychological Bulletin
Sara Ahola Kohut, Rebecca Pillai Riddell, David B Flora, Harriet Oster
Facial expressions during infancy are important to examine, as infants do not have the language skills to describe their experiences. This is particularly vital in the context of pain, where infants depend solely on their caregivers for relief. The objective of the current study was to investigate the development of negative infant facial expressions in response to immunization pain over the first year of life. Infant facial expressions were examined longitudinally using a subsample of 100 infants that were each videotaped during their 2-, 4-, 6-, and 12-month routine immunization appointments...
December 2012: Pain
Alan Stein, Adriane Arteche, Annukka Lehtonen, Michelle Craske, Allison Harvey, Nicholas Counsell, Lynne Murray
Postnatal maternal depression is associated with difficulties in maternal responsiveness. As most signals arising from the infant come from facial expressions one possible explanation for these difficulties is that mothers with postnatal depression are differentially affected by particular infant facial expressions. Thus, this study investigates the effects of postnatal depression on mothers' perceptions of infant facial expressions. Participants (15 controls, 15 depressed and 15 anxious mothers) were asked to rate a number of infant facial expressions, ranging from very positive to very negative...
June 2010: Infant Behavior & Development
Lane Strathearn, Jian Li, Peter Fonagy, P Read Montague
OBJECTIVES: Our goal was to determine how a mother's brain responds to her own infant's facial expressions, comparing happy, neutral, and sad face affect. METHODS: In an event-related functional MRI study, 28 first-time mothers were shown novel face images of their own 5- to 10-month-old infant and a matched unknown infant. Sixty unique stimuli from 6 categories (own-happy, own-neutral, own-sad, unknown-happy, unknown-neutral, and unknown-sad) were presented randomly for 2 seconds each, with a variable 2- to 6-second interstimulus interval...
July 2008: Pediatrics
Alexander Neumeister, Wayne C Drevets, Inna Belfer, David A Luckenbaugh, Shannan Henry, Omer Bonne, Peter Herscovitch, David Goldman, Dennis S Charney
Alterations in processing of emotionally salient information have been reported in individuals with major depressive disorder (MDD). Evidence suggests a role for noradrenaline in the regulation of a cortico-limbic-striatal circuit that has also been implicated in the pathophysiology of MDD. Herein, we studied the physiological consequences of a common coding polymorphism of the gene for the alpha(2C)-adrenoreceptor (AR) subtype--the deletion of four consecutive amino acids at codons 322-325 of the alpha2C-AR (alpha2CDel322-325-AR) in medication-free, remitted individuals with MDD (rMDD), and healthy control subjects...
August 2006: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
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