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https://www.readbyqxmd.com/read/29236042/single-channel-eeg-artifact-identification-using-two-dimensional-multi-resolution-analysis
#1
Mojtaba Taherisadr, Omid Dehzangi, Hossein Parsaei
As a diagnostic monitoring approach, electroencephalogram (EEG) signals can be decoded by signal processing methodologies for various health monitoring purposes. However, EEG recordings are contaminated by other interferences, particularly facial and ocular artifacts generated by the user. This is specifically an issue during continuous EEG recording sessions, and is therefore a key step in using EEG signals for either physiological monitoring and diagnosis or brain-computer interface to identify such artifacts from useful EEG components...
December 13, 2017: Sensors
https://www.readbyqxmd.com/read/29235500/the-development-of-spontaneous-facial-responses-to-others-emotions-in-infancy-an-emg-study
#2
Jakob Kaiser, Maria Magdalena Crespo-Llado, Chiara Turati, Elena Geangu
Viewing facial expressions often evokes facial responses in the observer. These spontaneous facial reactions (SFRs) are believed to play an important role for social interactions. However, their developmental trajectory and the underlying neurocognitive mechanisms are still little understood. In the current study, 4- and 7-month old infants were presented with facial expressions of happiness, anger, and fear. Electromyography (EMG) was used to measure activation in muscles relevant for forming these expressions: zygomaticus major (smiling), corrugator supercilii (frowning), and frontalis (forehead raising)...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29231012/-progress-in-application-of-measuring-skeleton-by-ct-in-forensic-anthropology-research
#3
C Y Miao, L Xu, N Wang, M Zhang, Y S Li, J X Lü
Individual identification by measuring the human skeleton is an important research in the field of forensic anthropology. Computed tomography (CT) technology can provide high-resolution image of skeleton. Skeleton image can be reformed by software in the post-processing workstation. Different skeleton measurement indexes of anthropology, such as diameter, angle, area and volume, can be measured on section and reformative images. Measurement process is barely affected by human factors. This paper reviews the literatures at home and abroad about the application of measuring skeleton by CT in forensic anthropology research for individual identification in four aspects, including sex determination, height infer, facial soft tissue thickness measurement and age estimation...
February 2017: Fa Yi Xue za Zhi
https://www.readbyqxmd.com/read/29230379/cross-cultural-and-hemispheric-laterality-effects-on-the-ensemble-coding-of-emotion-in-facial-crowds
#4
Hee Yeon Im, Sang Chul Chong, Jisoo Sun, Troy G Steiner, Daniel N Albohn, Reginald B Adams, Kestutis Kveraga
In many social situations, we make a snap judgment about crowds of people relying on their overall mood (termed "crowd emotion"). Although reading crowd emotion is critical for interpersonal dynamics, the sociocultural aspects of this process have not been explored. The current study examined how culture modulates the processing of crowd emotion in Korean and American observers. Korean and American (non-East Asian) participants were briefly presented with two groups of faces that were individually varying in emotional expressions and asked to choose which group between the two they would rather avoid...
October 2017: Culture and Brain
https://www.readbyqxmd.com/read/29226516/sost-an-lngfr-target-inhibits-the-osteogenic-differentiation-of-rat-ectomesenchymal-stem-cells
#5
Gang Li, Junyu Liu, Manzhu Zhao, Yingying Wang, Kun Yang, Chang Liu, Yong Xiao, Xiujie Wen, Luchuan Liu
OBJECTIVES: The aim of this study was to investigate whether sclerostin (SOST) regulates the osteogenic differentiation of rat ectomesenchymal stem cells (EMSCs) and whether SOST and low-affinity nerve growth factor receptor (LNGFR) regulate the osteogenic differentiation of EMSCs. MATERIALS AND METHODS: EMSCs were isolated from embryonic facial processes from an embryonic 12.5-day (E12.5d) pregnant Sprague-Dawley rat. LNGFR+ EMSCs and LNGFR- EMSCs were obtained by fluorescence-activated cell sorting and were subsequently induced to undergo osteogenic differentiation in vitro...
December 10, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29226255/differential-hemispheric-and-visual-stream-contributions-to-ensemble-coding-of-crowd-emotion
#6
Hee Yeon Im, Daniel N Albohn, Troy G Steiner, Cody A Cushing, Reginald B Adams, Kestutis Kveraga
In crowds, where scrutinizing individual facial expressions is inefficient, humans can make snap judgments about the prevailing mood by reading "crowd emotion". We investigated how the brain accomplishes this feat in a set of behavioral and fMRI studies. Participants were asked to either avoid or approach one of two crowds of faces presented in the left and right visual hemifields. Perception of crowd emotion was improved when crowd stimuli contained goal-congruent cues and was highly lateralized to the right hemisphere...
2017: Nature Human Behaviour
https://www.readbyqxmd.com/read/29225590/n170-reveals-the-categorical-perception-effect-of-emotional-valence
#7
Ruyi Qiu, Hailing Wang, Shimin Fu
As an important attribute of facial expression, emotional valence has been well explored, but its processing mechanisms remain ambiguous. Investigating the categorical perception (CP) of emotional valence might help uncover the objective basis of the subjective dichotomy of emotional valence and identify the stage at which this processing of valence information might occur. A judgment task was used in the current study with stimuli from the within- or between-category condition, in which participants were required to decide whether two presented faces showed the same emotion...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29225467/altered-emotional-recognition-and-expression-in-patients-with-parkinson-s-disease
#8
Yazhou Jin, Zhiqi Mao, Zhipei Ling, Xin Xu, Zhiyuan Zhang, Xinguang Yu
Background: Parkinson's disease (PD) patients exhibit deficits in emotional recognition and expression abilities, including emotional faces and voices. The aim of this study was to explore emotional processing in pre-deep brain stimulation (pre-DBS) PD patients using two sensory modalities (visual and auditory). Methods: Fifteen PD patients who needed DBS surgery and 15 healthy, age- and gender-matched controls were recruited as participants. All participants were assessed by the Karolinska Directed Emotional Faces database 50 Faces Recognition test...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29223659/complications-in-the-treatment-of-mandibular-condylar-fractures-surgical-versus-conservative-treatment
#9
REVIEW
Iván García-Guerrero, Juan M Ramírez, Rafael Gómez de Diego, José M Martínez-González, María S Poblador, José L Lancho
OBJECTIVES: In the present article, we aim to review the main intra- and post-operative complications associated with two different therapeutic approaches for treating mandibular condylar fractures: conservative (CTR) and surgical treatment (ORIF, Open Reduction and Internal Fixation). MATERIAL AND METHODS: We have carried out a retrospective, meta-analytic, observational study using literature review, covering the period between 2000- September 2017. The data obtained were processed using statistical software SPSS v...
December 6, 2017: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/29223599/pharmacological-intervention-and-abstinence-in-smokers-undergoing-cessation-treatment-a-psychophysiological-study
#10
Yong Cui, Jeffrey M Engelmann, Jonathan Xian, Jennifer A Minnix, Cho Y Lam, Maher Karam-Hage, Paul M Cinciripini, Jason D Robinson
As a composite concept, negative affect comprises various aversive emotional experiences, such as irritability and nervousness. It is a critical motivational factor that helps maintain smoking behavior, and contributes significantly to smoking cessation failure as a core withdrawal symptom. Prior research has indicated an important role of nicotinic mechanisms in negative affect processing. The most effective smoking cessation medication, varenicline, targets nicotinic acetylcholine receptors (nAChRs) as a partial agonist, while another first-line cessation medication, bupropion, has shown antagonistic effects on nAChRs...
December 6, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/29221834/emotion-and-sex-of-facial-stimuli-modulate-conditional-automaticity-in-behavioral-and-neuronal-interference-in-healthy-men
#11
Nils Kohn, Guillén Fernández
Our surrounding provides a host of sensory input, which we cannot fully process without streamlining and automatic processing. Levels of automaticity differ for different cognitive and affective processes. Situational and contextual interactions between cognitive and affective processes in turn influence the level of automaticity. Automaticity can be measured by interference in Stroop tasks. We applied an emotional version of the Stroop task to investigate how stress as a contextual factor influences the affective valence-dependent level of automaticity...
December 5, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29216861/impaired-mixed-emotion-processing-in-the-right-ventrolateral-prefrontal-cortex-in-schizophrenia-an-fmri-study
#12
Ádám György Szabó, Kinga Farkas, Csilla Marosi, Lajos R Kozák, Gábor Rudas, János Réthelyi, Gábor Csukly
BACKGROUND: Schizophrenia has a negative effect on the activity of the temporal and prefrontal cortices in the processing of emotional facial expressions. However no previous research focused on the evaluation of mixed emotions in schizophrenia, albeit they are frequently expressed in everyday situations and negative emotions are frequently expressed by mixed facial expressions. METHODS: Altogether 37 subjects, 19 patients with schizophrenia and 18 healthy control subjects were enrolled in the study...
December 8, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/29216439/gender-differences-in-social-cognition-a-cross-sectional-pilot-study-of-recently-diagnosed-patients-with-schizophrenia-and-healthy-subjects
#13
Guillem Navarra-Ventura, Sol Fernandez-Gonzalo, Marc Turon, Esther Pousa, Diego Palao, Narcis Cardoner, Merce Jodar
OBJECTIVES: This study had 2 objectives: First, to explore the gender-related differences in emotional processing (EP) and theory of mind-both cognitive (CToM) and affective (AToM)-in patients with schizophrenia and in a control group of healthy subjects; and, second, to examine, from a gender perspective, the possible association between EP and CToM in the AToM performance. METHODS: Forty patients with schizophrenia/schizoaffective disorder were recruited and matched by gender, age and years of education with 40 healthy subjects...
January 1, 2017: Canadian Journal of Psychiatry. Revue Canadienne de Psychiatrie
https://www.readbyqxmd.com/read/29216226/startling-similarity-effects-of-facial-self-resemblance-and-familiarity-on-the-processing-of-emotional-faces
#14
Johannes B Finke, Mauro F Larra, Martina U Merz, Hartmut Schächinger
Facial self-resemblance has been associated with positive emotional evaluations, but this effect may be biased by self-face familiarity. Here we report two experiments utilizing startle modulation to investigate how the processing of facial expressions of emotion is affected by subtle resemblance to the self as well as to familiar faces. Participants of the first experiment (I) (N = 39) were presented with morphed faces showing happy, neutral, and fearful expressions which were manipulated to resemble either their own or unknown faces...
2017: PloS One
https://www.readbyqxmd.com/read/29212493/development-of-a-video-simulation-instrument-for-assessing-cognition-in-older-adults
#15
Edward H Ip, Ryan Barnard, Sarah A Marshall, Lingyi Lu, Kaycee Sink, Valerie Wilson, Dana Chamberlain, Stephen R Rapp
BACKGROUND: Commonly used methods to assess cognition, such as direct observation, self-report, or neuropsychological testing, have significant limitations. Therefore, a novel tablet computer-based video simulation was created with the goal of being valid, reliable, and easy to administer. The design and implementation of the SIMBAC (Simulation-Based Assessment of Cognition) instrument is described in detail, as well as informatics "lessons learned" during development. RESULTS: The software emulates 5 common instrumental activities of daily living (IADLs) and scores participants' performance...
December 6, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/29210409/narcissistic-chiral-self-sorting-of-molecular-face-rotating-polyhedra
#16
Xinchang Wang, Pixian Peng, Wei Xuan, Yu Wang, Yongbin Zhuang, Zhongqun Tian, Xiaoyu Cao
Narcissistic chiral self-sorting prevailed in the assembly of molecular face-rotating polyhedra from a C3h building block 5,5,10,10,15,15-hexabutyl-truxene-2,7,12-tricarbaldehyde and racemic mixtures of 1,2-diamines. Out of 124 possible stereoisomers, a pair of racemic polyhedra dominated, wherein (1R,2R)-diamines were segregated in AAAA polyhedra and (1S,2S)-diamines in CCCC polyhedra. This chiral self-sorting process is regulated by facial non-covalent interactions in the polyhedra. In contrast, D3h facial building blocks 1,3,5-tris-(4-formyl-phenyl)triazine and racemic mixtures of 1,2-diamines assembled into polyhedra without facial interactions, and their assembly process did not undergo apparent chiral self-sorting...
December 6, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29209242/patterns-of-eye-movements-when-observers-judge-female-facial-attractiveness
#17
Yan Zhang, Xiaoying Wang, Juan Wang, Lili Zhang, Yu Xiang
The purpose of the present study is to explore the fixed model for the explicit judgments of attractiveness and infer which features are important to judge the facial attractiveness. Behavioral studies on the perceptual cues for female facial attractiveness implied three potentially important features: averageness, symmetry, and sexual dimorphy. However, these studies did not explained which regions of facial images influence the judgments of attractiveness. Therefore, the present research recorded the eye movements of 24 male participants and 19 female participants as they rated a series of 30 photographs of female facial attractiveness...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29203740/optical-density-of-upper-jaw-in-patients-with-malocclusion
#18
Vera D Kuroedova, Evheniy E Vyzhenko, Alexandra N Makarova, Ludmila B Galych, Tatyana A Chikor
INTRODUCTION: The growth and formation of facial skeleton is in interrelation with growth of cervical spine. Computer tomography plays an important role to examine and investigate the density of bony tissue resulting from total increase of osteopenic diseases and diseases of periodontal tissue. The aim of the paper is to compare indices of mineral density of bony tissue of the upper jaw and mineral density of the second cervical vertebra in patients with malocclusion. MATERIALS AND METHODS: 37 orthodontic patients were involved in the investigation...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29201594/translational-genetic-modelling-of-3d-craniofacial-dysmorphology-elaborating-the-facial-phenotype-of-neurodevelopmental-disorders-through-the-prism-of-schizophrenia
#19
REVIEW
John L Waddington, Stanislav Katina, Colm M P O'Tuathaigh, Adrian W Bowman
Purpose of Review: In the context of human developmental conditions, we review the conceptualisation of schizophrenia as a neurodevelopmental disorder, the status of craniofacial dysmorphology as a clinically accessible index of brain dysmorphogenesis, the ability of genetically modified mouse models of craniofacial dysmorphology to inform on the underlying dysmorphogenic process and how geometric morphometric techniques in mutant mice can extend quantitative analysis. Recent Findings: Mutant mice with disruption of neuregulin-1, a gene associated meta-analytically with risk for schizophrenia, constitute proof-of-concept studies of murine facial dysmorphology in a manner analogous to clinical studies in schizophrenia...
2017: Current Behavioral Neuroscience Reports
https://www.readbyqxmd.com/read/29197243/automated-facial-recognition-of-manually-generated-clay-facial-approximations-potential-application-in-unidentified-persons-data-repositories
#20
Connie L Parks, Keith L Monson
This research examined how accurately 2D images (i.e., photographs) of 3D clay facial approximations were matched to corresponding photographs of the approximated individuals using an objective automated facial recognition system. Irrespective of search filter (i.e., blind, sex, or ancestry) or rank class (R1, R10, R25, and R50) employed, few operationally informative results were observed. In only a single instance of 48 potential match opportunities was a clay approximation matched to a corresponding life photograph within the top 50 images (R50) of a candidate list, even with relatively small gallery sizes created from the application of search filters (e...
November 13, 2017: Forensic Science International
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