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Facial expressions

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https://www.readbyqxmd.com/read/29165801/sex-and-rank-affect-how-infant-rhesus-macaques-look-at-faces
#1
Annika Paukner, Emily M Slonecker, Ashley M Murphy, Lauren J Wooddell, Amanda M Dettmer
We investigated how differences in infant sex and mothers' dominance status affect infant rhesus macaques' (Macaca mulatta) interest in visually exploring emotional facial expressions. Thirty-eight infants were presented with animated avatars of macaque facial expressions during the first month of life. Sons of high-ranking mothers looked more at faces, especially the eye region, than sons of low-ranking mothers, but no difference in looking duration was found for daughters. Males looked significantly more at eyes than females, but this effect was reversed in infants who were reared without mothers in a primate nursery facility...
November 22, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/29164431/response-of-the-gabaergic-system-to-axotomy-of-the-rat-facial-nerve
#2
Reika Kikuchi, Makoto Hamanoue, Maasa Koshimoto, Shinichi Kohsaka, Kazuyuki Nakajima
The responses of inhibitory neurons/synapses to motoneuron injury in the cranial nervous system remain to be elucidated. In this study, we analyzed GABAA receptor (GABAAR) and GABAergic neurons at the protein level in the transected rat facial nucleus. Immunoblotting revealed that the GABAARα1 protein levels in the axotomized facial nucleus decreased significantly 5-14 days post-insult, and these levels remained low for 5 weeks. Immunohistochemical analysis indicated that the GABAARα1-expressing cells were motoneurons...
November 21, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/29163243/functional-alterations-of-postcentral-gyrus-modulated-by-angry-facial-expressions-during-intraoral-tactile-stimuli-in-patients-with-burning-mouth-syndrome-a-functional-magnetic-resonance-imaging-study
#3
Atsuo Yoshino, Yasumasa Okamoto, Mitsuru Doi, Go Okada, Masahiro Takamura, Naho Ichikawa, Shigeto Yamawaki
Previous findings suggest that negative emotions could influence abnormal sensory perception in burning mouth syndrome (BMS). However, few studies have investigated the underlying neural mechanisms associated with BMS. We examined activation of brain regions in response to intraoral tactile stimuli when modulated by angry facial expressions. We performed functional magnetic resonance imaging on a group of 27 BMS patients and 21 age-matched healthy controls. Tactile stimuli were presented during different emotional contexts, which were induced via the continuous presentation of angry or neutral pictures of human faces...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29163082/the-way-dogs-canis-familiaris-look-at-human-emotional-faces-is-modulated-by-oxytocin-an-eye-tracking-study
#4
Anna Kis, Anna Hernádi, Bernadett Miklósi, Orsolya Kanizsár, József Topál
Dogs have been shown to excel in reading human social cues, including facial cues. In the present study we used eye-tracking technology to further study dogs' face processing abilities. It was found that dogs discriminated between human facial regions in their spontaneous viewing pattern and looked most to the eye region independently of facial expression. Furthermore dogs played most attention to the first two images presented, afterwards their attention dramatically decreases; a finding that has methodological implications...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29162437/mouse-model-of-alagille-syndrome-and-mechanisms-of-jagged1-missense-mutations
#5
Emma R Andersson, Indira V Chivukula, Simona Hankeova, Marika Sjöqvist, Yat Long Tsoi, Daniel Ramsköld, Jan Masek, Aiman Elmansuri, Anita Hoogendoorn, Elenae Vazquez, Helena Storvall, Julie Netušilová, Meritxell Huch, Björn Fischler, Ewa Ellis, Adriana Contreras, Antal Nemeth, Kenneth C Chien, Hans Clevers, Rickard Sandberg, Vitezslav Bryja, Urban Lendahl
BACKGROUND & AIMS: Alagille syndrome is a genetic disorder characterized by cholestasis, ocular abnormalities, characteristic facial features, heart defects, and vertebral malformations. Most cases are associated with mutations in JAGGED1 (JAG1), which encodes a Notch ligand, although it is not clear how these contribute to disease development. We aimed to develop a mouse model of Alagille syndrome to elucidate these mechanisms. METHODS: Mice with a missense mutation (H268Q) in Jag1 (Jag1(+)/(Ndr) mice) were outbred to a C3H/C57bl6 background to generate a mouse model for Alagille syndrome (Jag1(Ndr/Ndr) mice)...
November 18, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29162181/effects-of-early-institutionalization-on-emotion-processing-in-12-year-old-youth
#6
Johanna Bick, Rhiannon Luyster, Nathan A Fox, Charles H Zeanah, Charles A Nelson
We examined facial emotion recognition in 12-year-olds in a longitudinally followed sample of children with and without exposure to early life psychosocial deprivation (institutional care). Half of the institutionally reared children were randomized into foster care homes during the first years of life. Facial emotion recognition was examined in a behavioral task using morphed images. This same task had been administered when children were 8 years old. Neutral facial expressions were morphed with happy, sad, angry, and fearful emotional facial expressions, and children were asked to identify the emotion of each face, which varied in intensity...
December 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/29161957/induced-pluripotent-stem-cells-from-a-marsupial-the-tasmanian-devil-sarcophilus-harrisii-insight-into-the-evolution-of-mammalian-pluripotency
#7
Prasanna Weeratunga, Arash Shahsavari, Dmitry A Ovchinnikov, Ernst Jurgen Wolvetang, Deanne Jeanette Whitworth
We demonstrate the generation of Tasmanian devil (Sarcophilus harrisii) induced pluripotent stem cells (DeviPSCs) from dermal fibroblasts by lentiviral delivery of human transcription factors. DeviPSCs display characteristic pluripotent stem cell colony morphology, with individual cells having a high nuclear to cytoplasmic ratio and alkaline phosphatase activity. DeviPSCs are leukemia inhibitory factor-dependent and have reactivated endogenous OCT4 (POU5F1), POU2 (POU5F3), SOX2, NANOG and DAX1 genes, retained a normal karyotype, and concurrently silenced exogenous human transgenes...
November 22, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/29161193/infectious-disease-and-imperfections-of-self-image
#8
Joshua M Ackerman, Joshua M Tybur, Chad R Mortensen
Infectious disease is an ever-present threat in daily life. Recent literature indicates that people manage this threat with a suite of antipathogenic psychological and behavioral defense mechanisms, which motivate the avoidance of people and objects bearing cues to pathogen risk. Here, we demonstrate that self-image is also impacted by these mechanisms. In seven studies, pathogen cues led individuals chronically averse to germs to express greater concern about their own physical appearance. Correspondingly, these people exhibited behavioral intentions and decisions intended to conceal or improve their appearance, such as purchasing facial products, taking pharmaceuticals, and undergoing cosmetic surgery...
November 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/29160744/modulation-of-neural-oscillatory-activity-during-dynamic-face-processing
#9
Elaine Foley, Gina Rippon, Carl Senior
Various neuroimaging and neurophysiological methods have been used to examine neural activation patterns in response to faces. However, much of previous research has relied on static images of faces, which do not allow a complete description of the temporal structure of face-specific neural activities to be made. More recently, insights are emerging from fMRI studies about the neural substrates that underpin our perception of naturalistic dynamic face stimuli, but the temporal and spectral oscillatory activity associated with processing dynamic faces has yet to be fully characterized...
November 21, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/29157845/face-perception-in-social-anxiety-visuocortical-dynamics-reveal-propensities-for-hypervigilance-or-avoidance
#10
Lisa M McTeague, Marie-Claude Laplante, Hailey W Bulls, Joshua R Shumen, Peter J Lang, Andreas Keil
BACKGROUND: Theories of aberrant attentional processing in social anxiety, and anxiety disorders more broadly, have postulated an initial hypervigilance or facilitation to clinically relevant threats and consequent defensive avoidance. However, existing objective measurements utilized to explore this phenomenon lack the resolution to elucidate attentional dynamics, particularly covert influences. METHODS: We utilized a continuous measure of visuocortical engagement, the steady-state visual evoked potential in response to naturalistic angry, fearful, happy, and neutral facial expressions...
October 13, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29157417/effect-of-emotions-on-temporal-attention
#11
Maruti V Mishra, Sonia B Ray, Narayanan Srinivasan
Emotions play a significant role in guiding everyday actions and strongly interact with attention. The processing of emotional information over time and the influence of attention on such processing has been studied through the phenomenon of attentional blink using rapid serial visual presentations (RSVP) tasks. This chapter discusses the interaction between temporal attention and the type of emotional information (words, scenes, and facial expressions) presented during or before the RSVP stream. The findings show that the affective content and the arousal value of the emotional stimuli presented as first target, second target, or both affects the magnitude and the duration of the blink window...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29157084/effects-of-task-irrelevant-emotional-information-on-deception
#12
Jing Liang, Yu-Hsin Chen, Wen-Jing Yan, Fangbing Qu, Xiaolan Fu
Deception has been reported to be influenced by task-relevant emotional information from an external stimulus. However, it remains unclear how task-irrelevant emotional information would influence deception. In the present study, facial expressions of different valence and emotion intensity were presented to participants, where they were asked to make either truthful or deceptive gender judgments according to the preceding cues. We observed the influence of facial expression intensity upon individuals' cognitive cost of deceiving (mean difference of individuals' truthful and deceptive response times)...
November 20, 2017: Cognition & Emotion
https://www.readbyqxmd.com/read/29155351/erp-responses-greater-for-faces-in-the-temporal-compared-to-the-nasal-visual-field
#13
David Framorando, Nicolas Burra, Mylène Bapst, Alan J Pegna
The distribution of retino-tectal projections is dissimilar depending on whether the receptors are situated in the nasal and temporal visual hemiretinas. Indeed, it has been claimed that the superior colliculus receives a greater proportion of its input from the temporal visual hemifield (nasal hemi-retina) relative to the nasal hemifield (temporal hemi-retina). In order to investigate whether these subcortical projections influence face processing, we investigated the early cortical ERP responses to faces and houses presented in the temporal and nasal retinas using monocular viewing...
November 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/29154290/positive-facial-expressions-during-retrieval-of-self-defining-memories
#14
Marie Charlotte Gandolphe, Jean Louis Nandrino, Gérald Delelis, Claire Ducro, Audrey Lavallee, Xavier Saloppe, Ahmed A Moustafa, Mohamad El Haj
In this study, we investigated, for the first time, facial expressions during the retrieval of Self-defining memories (i.e., those vivid and emotionally intense memories of enduring concerns or unresolved conflicts). Participants self-rated the emotional valence of their Self-defining memories and autobiographical retrieval was analyzed with a facial analysis software. This software (Facereader) synthesizes the facial expression information (i.e., cheek, lips, muscles, eyebrow muscles) to describe and categorize facial expressions (i...
November 14, 2017: Journal of Integrative Neuroscience
https://www.readbyqxmd.com/read/29154053/acupuncture-and-kinesio-taping-for-the-acute-management-of-bell-s-palsy-a-case-report
#15
Derya Özmen Alptekin
BACKGROUND: Bell's palsy is an idiopathic, acute peripheral palsy of the facial nerve that supplies the muscles of facial expression. Despite an expected 70% full recovery rate, up to 30% of patients are left with potentially disfiguring facial weakness, involuntary movements, or persistent lacrimation. The most frequently used treatment options are corticosteroids and antiviral drugs. However, accompanying clinical conditions, such as uncontrolled diabetes, hypertension, gastrointestinal disturbances, polypharmacy of geriatric patients, and significant sequelae ratios, indicate the need for safe and effective complementary therapies that would enhance the success of the conventional interventions...
December 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/29150757/invisible-side-of-emotions-somato-motor-responses-to-affective-facial-displays-in-alexithymia
#16
Cristina Scarpazza, Elisabetta Làdavas, Luigi Cattaneo
According to recent theories, the detection of emotions involves somatic experiences. In this study, we investigated the relation between somatic responses to affective stimuli, emotion perception, and alexithymia. Variations in automatic rapid facial reactions (RFRs) were measured in a selected population of participants with high and low levels of alexithymia (HA and LA, respectively). Electromyographic activity was recorded from the corrugator supercilii and the zygomaticus major, while participants performed a gender classification task on faces expressing various emotional states...
November 17, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/29147671/distal-22q11-2-microduplication-case-report-and-review-of-the-literature
#17
Elana Pinchefsky, Laurence Laneuville, Myriam Srour
Distal chromosome 22q11.2 microduplications are associated with a wide range of phenotypes and unclear pathogenicity. The authors report on a 3-year-old girl with global developmental delay harboring a de novo 1.24 Mb distal chromosome 22q11.2 microduplication and a paternally inherited 0.25 Mb chromosome 4p14 microduplication. The authors review clinical features of 30 reported cases of distal 22q11.2 duplications. Common features include developmental delay (93%), neuropsychiatric features (26%), and nonspecific facial dysmorphisms (74%)...
January 2017: Child neurology open
https://www.readbyqxmd.com/read/29146147/age-induced-and-photoinduced-changes-in-gene-expression-profiles-in-facial-skin-of-caucasian-females-across-6%C3%A2-decades-of-age
#18
Alexa B Kimball, Maria B Alora-Palli, Makio Tamura, Lisa A Mullins, Chieko Soh, Robert L Binder, Neil A Houston, Emily D Conley, Joyce Y Tung, Nikki E Annunziata, Charles C Bascom, Robert J Isfort, Bradley B Jarrold, Raghu Kainkaryam, Heather L Rocchetta, Dionne D Swift, Jay P Tiesman, Kazumi Toyama, Jun Xu, Xianghong Yan, Rosemarie Osborne
BACKGROUND: Intrinsic and extrinsic factors, including ultraviolet irradiation, lead to visible signs of skin aging. OBJECTIVE: We evaluated molecular changes occurring in photoexposed and photoprotected skin of white women 20 to 74 years of age, some of whom appeared substantially younger than their chronologic age. METHODS: Histologic and transcriptomics profiling were conducted on skin biopsy samples of photoexposed (face and dorsal forearm) or photoprotected (buttocks) body sites from 158 women...
November 14, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29146105/content-validation-of-behaviours-and-autonomic-responses-for-the-assessment-of-pain-in-critically-ill-adults-with-a-brain-injury
#19
Céline Gélinas, Kathleen A Puntillo, Madalina Boitor, Mélanie Bérubé, Jane Topolovec-Vranic, Anne-Sylvie Ramelet, Aaron M Joffe, Melissa Richard-Lalonde, Francis Bernard, David L Streiner
BACKGROUND: The evidence shows that brain-injured patients express behaviours that are related to their level of consciousness (LOC), and different from other patients in the intensive care unit (ICU). Therefore, existing behavioural scales should be revised to enhance their content and validity for use in these patients. OBJECTIVES: The aim was to evaluate the content relevance of behaviours and autonomic responses for pain assessment of brain-injured ICU patients from the perspective of critical care clinicians...
November 13, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/29146033/analgesics-in-small-mammals
#20
REVIEW
Paul Flecknell
Managing pain effectively in any species is challenging, but small mammals present particular problems. Methods of pain assessment are still under development in these species, so the efficacy of analgesic therapy cannot be evaluated fully. Methods of assessing abdominal pain are established; however, applying these can be challenging. Alternative methods, using assessment of facial expression, may be more applicable to a range of painful procedures and across species. Multimodal and preventive analgesic strategies are most likely to be effective...
January 2018: Veterinary Clinics of North America. Exotic Animal Practice
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