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https://www.readbyqxmd.com/read/28434583/a-proposal-for-new-neurorehabilitative-intervention-on-moebius-syndrome-patients-after-smile-surgery-proof-of-concept-based-on-mirror-neuron-system-properties-and-hand-mouth-synergistic-activity
#1
REVIEW
Pier Francesco Ferrari, Anna Barbot, Bernardo Bianchi, Andrea Ferri, Gioacchino Garofalo, Nicola Bruno, Gino Coudé, Chiara Bertolini, Martina Ardizzi, Ylenia Nicolini, Mauro Belluardo, Elisa De Stefani
Studies of the last twenty years on the motor and premotor cortices of primates demonstrated that the motor system is involved in the control and initiation of movements, and in higher cognitive processes, such as action understanding, imitation, and empathy. Mirror neurons are only one example of such theoretical shift. Their properties demonstrate that motor and sensory processing are coupled in the brain. Such knowledge has been also central for designing new neurorehabilitative therapies for patients suffering from brain injuries and consequent motor deficits...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28433950/an-electrocortical-investigation-of-emotional-face-processing-in-military-related-posttraumatic-stress-disorder
#2
Julia A DiGangi, Katie L Burkhouse, Darrin M Aase, Joseph M Babione, Christopher Schroth, Amy E Kennedy, Justin E Greenstein, Eric Proescher, K Luan Phan
PTSD is a disorder of emotion dysregulation. Although much work has intended to elucidate the neural underpinnings of the disorder, much remains unknown about the neurobiological substrates of emotion dysregulation in PTSD. In order to assess the relationship between a neural measure of attention to emotion (i.e. the late positive potential; LPP) and PTSD symptoms, EEG was recorded and examined as a potential predictor of military-related PTSD symptoms in a sample of 73 OEF/OIF/OND veterans. Results revealed that higher PTSD symptoms were related to an attenuated LPP response to angry facial expressions...
March 20, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28429707/the-human-amygdala-parametrically-encodes-the-intensity-of-specific-facial-emotions-and-their-categorical-ambiguity
#3
Shuo Wang, Rongjun Yu, J Michael Tyszka, Shanshan Zhen, Christopher Kovach, Sai Sun, Yi Huang, Rene Hurlemann, Ian B Ross, Jeffrey M Chung, Adam N Mamelak, Ralph Adolphs, Ueli Rutishauser
The human amygdala is a key structure for processing emotional facial expressions, but it remains unclear what aspects of emotion are processed. We investigated this question with three different approaches: behavioural analysis of 3 amygdala lesion patients, neuroimaging of 19 healthy adults, and single-neuron recordings in 9 neurosurgical patients. The lesion patients showed a shift in behavioural sensitivity to fear, and amygdala BOLD responses were modulated by both fear and emotion ambiguity (the uncertainty that a facial expression is categorized as fearful or happy)...
April 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28425324/persistent-idiopathic-facial-pain
#4
Rafael Benoliel, Charly Gaul
Background Persistent idiopathic facial pain (PIFP) is a chronic disorder recurring daily for more than two hours per day over more than three months, in the absence of clinical neurological deficit. PIFP is the current terminology for Atypical Facial Pain and is characterized by daily or near daily pain that is initially confined but may subsequently spread. Pain cannot be attributed to any pathological process, although traumatic neuropathic mechanisms are suspected. When present intraorally, PIFP has been termed 'Atypical Odontalgia', and this entity is discussed in a separate article in this special issue...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28422179/heritability-maps-of-human-face-morphology-through-large-scale-automated-three-dimensional-phenotyping
#5
Dimosthenis Tsagkrasoulis, Pirro Hysi, Tim Spector, Giovanni Montana
The human face is a complex trait under strong genetic control, as evidenced by the striking visual similarity between twins. Nevertheless, heritability estimates of facial traits have often been surprisingly low or difficult to replicate. Furthermore, the construction of facial phenotypes that correspond to naturally perceived facial features remains largely a mystery. We present here a large-scale heritability study of face geometry that aims to address these issues. High-resolution, three-dimensional facial models have been acquired on a cohort of 952 twins recruited from the TwinsUK registry, and processed through a novel landmarking workflow, GESSA (Geodesic Ensemble Surface Sampling Algorithm)...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28419862/the-effect-of-tdcs-over-the-right-temporo-parietal-junction-on-pain-empathy
#6
Michel-Pierre Coll, Marie-Pier B Tremblay, Philip L Jackson
Empathy is a complex psychological phenomenon crucial for social perception and interactions. Several lines of evidence suggest that the right temporo-parietal junction is involved in self-other control mechanisms that play an important role in empathic responses. However, limited direct evidence of the involvement of this region in empathic responses is currently available. In this study, inhibitory transcranial direct current stimulation over this region influenced empathic responses to others' pain. It was found that compared to participants that received anodal or sham transcranial direct current stimulation, participants who received cathodal transcranial direct current stimulation over the right temporo-parietal junction perceived the pain of others as less intense compared to sham stimulation and showed decreased late event related potentials to facial expressions of pain...
April 15, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28418399/restoring-effects-of-oxytocin-on-the-attentional-preference-for-faces-in-autism
#7
M Kanat, I Spenthof, A Riedel, L T van Elst, M Heinrichs, G Domes
Reduced attentional preference for faces and symptoms of social anxiety are common in autism spectrum disorders (ASDs). The neuropeptide oxytocin triggers anxiolytic functions and enhances eye gaze, facial emotion recognition and neural correlates of face processing in ASD. Here we investigated whether a single dose of oxytocin increases attention to faces in ASD. As a secondary question, we explored the influence of social anxiety on these effects. We tested for oxytocin's effects on attention to neutral faces as compared to houses in a sample of 29 autistic individuals and 30 control participants using a dot-probe paradigm with two different presentation times (100 or 500 ms)...
April 18, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28416452/associated-motivational-salience-impacts-early-sensory-processing-of-human-faces
#8
Wiebke Hammerschmidt, Holger Sennhenn-Reulen, Annekathrin Schacht
Facial expressions of emotion have an undeniable processing advantage over neutral faces, discernible both at behavioral level and in emotion-related modulations of several event-related potentials (ERPs). Recently it was proposed that also inherently neutral stimuli might gain salience through associative learning mechanisms. The present study investigated whether acquired motivational salience leads to processing advantages similar to biologically determined origins of inherent emotional salience by applying an associative learning paradigm to human face processing...
April 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28414273/oriented-clonal-cell-dynamics-enables-accurate-growth-and-shaping-of-vertebrate-cartilage
#9
Marketa Kaucka, Tomas Zikmund, Marketa Tesarova, Daniel Gyllborg, Andreas Hellander, Josef Jaros, Jozef Kaiser, Julian Petersen, Bara Szarowska, Phillip T Newton, Vyacheslav Dyachuk, Lei Li, Hong Qian, Anne-Sofie Johansson, Yuji Mishina, Josh Currie, Elly M Tanaka, Alek Erickson, Andrew Dudley, Hjalmar Brismar, Paul Southam, Enrico Coen, Min Chen, Lee S Weinstein, Ales Hampl, Ernest Arenas, Andrei S Chagin, Kaj Fried, Igor Adameyko
Cartilaginous structures are at the core of embryo growth and shaping before the bone forms. Here we report a novel principle of vertebrate cartilage growth that is based on introducing transversally-oriented clones into pre-existing cartilage. This mechanism of growth uncouples the lateral expansion of curved cartilaginous sheets from the control of cartilage thickness, a process which might be the evolutionary mechanism underlying adaptations of facial shape. In rod-shaped cartilage structures (Meckel, ribs and skeletal elements in developing limbs), the transverse integration of clonal columns determines the well-defined diameter and resulting rod-like morphology...
April 17, 2017: ELife
https://www.readbyqxmd.com/read/28412497/optogenetic-stimulation-of-cortex-to-map-evoked-whisker-movements-in-awake-head-restrained-mice
#10
Matthieu Auffret, Veronica L Ravano, Giulia M C Rossi, Nicolas Hankov, Merissa F A Petersen, Carl C H Petersen
Whisker movements are used by rodents to touch objects in order to extract spatial and textural tactile information about their immediate surroundings. To understand the mechanisms of such active sensorimotor processing it is important to investigate whisker motor control. The activity of neurons in the neocortex affects whisker movements, but many aspects of the organization of cortical whisker motor control remain unknown. Here, we filmed whisker movements evoked by sequential optogenetic stimulation of different locations across the left dorsal sensorimotor cortex of awake head-restrained mice...
April 12, 2017: Neuroscience
https://www.readbyqxmd.com/read/28409041/bilateral-facial-diplegia-a-rare-presenting-symptom-of-lyme
#11
John Ashurst, Matthew Perry
Lyme disease is a common disease that is faced by the physician but also acts a mimicker of many other disease processes. Facial palsies, especially bilateral, are a relatively rare presenting symptom of Lyme disease and may warrant further investigation. A thorough history and physical examination coupled with precision testing may aid the physician when faced with a patient with the diagnostic dilemma of facial diplegia.
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28406237/preference-for-facial-averageness-evidence-for-a-common-mechanism-in-human-and-macaque-infants
#12
Fabrice Damon, David Méary, Paul C Quinn, Kang Lee, Elizabeth A Simpson, Annika Paukner, Stephen J Suomi, Olivier Pascalis
Human adults and infants show a preference for average faces, which could stem from a general processing mechanism and may be shared among primates. However, little is known about preference for facial averageness in monkeys. We used a comparative developmental approach and eye-tracking methodology to assess visual attention in human and macaque infants to faces naturally varying in their distance from a prototypical face. In Experiment 1, we examined the preference for faces relatively close to or far from the prototype in 12-month-old human infants with human adult female faces...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28402573/humor-drawings-evoked-temporal-and-spectral-eeg-processes
#13
Regina W Y Wang, Hsien-Chu Kuo, Shang-Wen Chuang
The study aimed to explore the humor processing elicited through the manipulation of artistic drawings. Using the Comprehension-Elaboration Theory of humor as the main research background, the experiment manipulated the head portraits of celebrities based on the independent variables of facial deformation (large/small) and addition of affective features (positive/negative). A 64-channel electroencephalography was recorded in 30 participants while viewing the incongruous drawings of celebrities. The electroencephalography temporal and spectral responses were measured during the three stages of humor which included incongruity detection, incongruity comprehension and elaboration of humor...
April 11, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28402536/the-effect-of-constraining-eye-contact-during-dynamic-emotional-face-perception-an-fmri-study
#14
Nouchine Hadjikhani, Nicole Zurcher, Amandine Lassalle, Loyse Hippolyte, Noreen Ward, Jakob Åsberg Johnels
Eye-contact modifies how we perceive emotions and modulates activity in the social brain network. Here, using fMRI, we demonstrate that adding a fixation cross in the eye region of dynamic facial emotional stimuli significantly increases activation in the social brain of healthy, neurotypical participants when compared with activation for the exact same stimuli observed in a free-viewing mode. In addition, using PPI analysis, we show that the degree of amygdala connectivity with the rest of the brain is enhanced for the constrained view for all emotions tested except for fear, and that anxiety and alexithymia modulate the strength of amygdala connectivity for each emotion differently...
April 11, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28401841/positive-valence-bias-and-parent-child-relationship-security-moderate-the-association-between-early-institutional-caregiving-and-internalizing-symptoms
#15
Michelle R Vantieghem, Laurel Gabard-Durnam, Bonnie Goff, Jessica Flannery, Kathryn L Humphreys, Eva H Telzer, Christina Caldera, Jennifer Y Louie, Mor Shapiro, Niall Bolger, Nim Tottenham
Institutional caregiving is associated with significant deviations from species-expected caregiving, altering the normative sequence of attachment formation and placing children at risk for long-term emotional difficulties. However, little is known about factors that can promote resilience following early institutional caregiving. In the current study, we investigated how adaptations in affective processing (i.e., positive valence bias) and family-level protective factors (i.e., secure parent-child relationships) moderate risk for internalizing symptoms in previously institutionalized (PI) youth...
May 2017: Development and Psychopathology
https://www.readbyqxmd.com/read/28400265/convergence-of-semantics-and-emotional-expression-within-the-ifg-pars-orbitalis
#16
Michel Belyk, Steven Brown, Jessica Lim, Sonja A Kotz
Humans communicate through a combination of linguistic and emotional channels, including propositional speech, writing, sign language, music, but also prosodic, facial, and gestural expression. These channels can be interpreted separately or they can be integrated to multimodally convey complex meanings. Neural models of the perception of semantics and emotion include nodes for both functions in the inferior frontal gyrus pars orbitalis (IFGorb). However, it is not known whether this convergence involves a common functional zone or instead specialized subregions that process semantics and emotion separately...
April 8, 2017: NeuroImage
https://www.readbyqxmd.com/read/28399651/facial-pain-overlapping-syndromes
#17
Stefan Evers
Premise This review summarises the pain syndromes that overlap between headache and facial pain and overlap between pain and cranial nerve lesion. Problem These syndromes share two features in common. First, they show both cranial nerve impairment (e.g. palsy, autonomic dysfunction) and pain; second, they have inflammatory (and/or small vessel) processes as the underlying mechanism. A typical representative of these syndromes is recurrent painful ophthalmoplegic neuropathy, which was previously called ophthalmoplegic migraine and was regarded as a migraine subtype...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28398128/ensemble-coding-of-face-identity-is-not-independent-of-the-coding-of-individual-identity
#18
Markus F Neumann, Ryan Ng, Gillian Rhodes, Romina Palermo
Information about a group of similar objects can be summarized into a compressed code, known as ensemble coding. Ensemble coding of simple stimuli (e.g., groups of circles) can occur in the absence of detailed exemplar coding, suggesting dissociable processes. Here, we investigate whether a dissociation would still be apparent when coding facial identity, where individual exemplar information is much more important. We examined whether ensemble coding can occur when exemplar coding is difficult, as a result of large sets or short viewing times, or whether the two types of coding are positively associated...
April 11, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28397623/differences-in-neural-and-cognitive-response-to-emotional-faces-in-middle-aged-dizygotic-twins-at-familial-risk-of-depression
#19
K W Miskowiak, A M B Svendsen, C J Harmer, R Elliott, J Macoveanu, H R Siebner, L V Kessing, M Vinberg
BACKGROUND: Negative bias and aberrant neural processing of emotional faces are trait-marks of depression but findings in healthy high-risk groups are conflicting. METHODS: Healthy middle-aged dizygotic twins (N = 42) underwent functional magnetic resonance imaging (fMRI): 22 twins had a co-twin history of depression (high-risk) and 20 were without co-twin history of depression (low-risk). During fMRI, participants viewed fearful and happy faces while performing a gender discrimination task...
April 11, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28393011/motivated-attention-and-family-risk-for-depression-neuronal-generator-patterns-at-scalp-elicited-by-lateralized-aversive-pictures-reveal-blunted-emotional-responsivity
#20
Jürgen Kayser, Craig E Tenke, Karen S Abraham, Daniel M Alschuler, Jorge E Alvarenga, Jamie Skipper, Virginia Warner, Gerard E Bruder, Myrna M Weissman
Behavioral and electrophysiologic evidence suggests that major depression (MDD) involves right parietotemporal dysfunction, a region activated by arousing affective stimuli. Building on prior event-related potential (ERP) findings (Kayser et al. 2016 NeuroImage 142:337-350), this study examined whether these abnormalities also characterize individuals at clinical high risk for MDD. We systematically explored the impact of family risk status and personal history of depression and anxiety on three distinct stages of emotional processing comprising the late positive potential (LPP)...
2017: NeuroImage: Clinical
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