Functional asymmetry in the human face: Perception of health in the left and right sides of the face

2001 ◽  
Vol 6 (3) ◽  
pp. 225-231 ◽  
Author(s):  
V.A. Reis ◽  
D.W. Zaidel
Keyword(s):  
Face Perception ◽  
Functional Asymmetry ◽  
Human Face ◽  
The Face ◽  
Left And Right ◽  
Perception Of Health

Illumination-Induced Apparent Shift in Orientation of Human Heads

Perception ◽  
1998 ◽  
Vol 27 (6) ◽  
pp. 671-680 ◽  
Author(s):  
Nikolaus F Troje ◽  
Ulrike Siebeck
Keyword(s):  
Light Source ◽  
Human Face ◽  
Visual Texture ◽  
Orientation Judgment ◽  
Profile Line ◽  
The Face ◽  
Left And Right ◽  
The Mean ◽  
Apparent Shift ◽  
Apparent Orientation

Changing the position of a light source illuminating a human face induces an apparent shift of the perceived orientation of that face. The direction of this apparent shift is opposite to the shift of the light source. We demonstrated the illumination-induced apparent orientation shift (IAOS), quantified it in terms of the physical orientation shift needed to compensate for it, and evaluated the results in the context of possible mechanisms underlying orientation judgment. Results indicate that IAOS depends not only on the angle between the two light source positions, but also on the mean orientation of the face. Availability of cues coded in the visual texture of the face did not affect IAOS. The most effective cue was the location of the visible outline of the face. IAOS seems to be due to a shift of this outline when shadowed areas on the face merge with the black background. We conclude that an important mechanism for orientation judgment is based on a comparison of visible parts left and right of the profile line.

scholarly journals The specificity of interpersonal perception in terms of presentation of the image of a whole face and a «split face» on the example of perception of pictorial portraits

2015 ◽  
Vol 8 (4) ◽  
pp. 120-133 ◽  
Author(s):  
E.A. Lupenko
Keyword(s):  
Experimental Data ◽  
Interpersonal Perception ◽  
Stimulus Material ◽  
Psychological Characteristics ◽  
Human Face ◽  
The Face ◽  
Left And Right ◽  
The Right ◽  
Split Face

The article presents a study of the specificity of perception of expression of the whole and fragmented (divided into left and right half) face made on the example of the perception of pictorial portraits. The data obtained in the study are fully consistent with previously obtained results of the similar study of perception of facsimiles (Artemtseva, 2003, Barabanschikov, Boldyrev, 2007; Barabanschikov, Zhegallo, 2013). The right and the left side of the face and the image of a whole face have their own expressive potential, which is reflected in the use by observer of different individual psychological characteristics in their description. The expression of a whole face often has a contradictory character with overly intensified emotions and is not a simple sum of the characteristics that are used in the description of the right and left halves of the face. Thus, perception of expression of a whole face and of a “split face” brings up several different patterns of personality. The similarity of the experimental data, obtained at different stimulus material (portraits and images), speaks about the invariance of perception of human face, regardless of the method of its representation.

Human Face Responses in the Rorschach Test

2012 ◽  
Vol 33 (1) ◽  
pp. 23-48 ◽  
Author(s):  
Yifat Weinberger ◽  
Anne Andronikof
Keyword(s):  
Clinical Significance ◽  
Face Perception ◽  
Reference Sample ◽  
Interpersonal Perception ◽  
Psychological Development ◽  
Background Information ◽  
Human Face ◽  
Rorschach Test ◽  
The Face ◽  
Perceptual Characteristics

The present study explores the human face responses in the Rorschach test. We suggest that, although the experience of the human face is essential to our psychological development and to our interaction with the world, this category of responses has always been considered as one of the partial human contents, together with responses such as an eye or a finger. The study provides background information about recent research findings concerning face perception and the role of face perception in early psychological development and suggests that Rorschach face responses may be better distinguished from other human detail contents and may have a special clinical significance. In order to explore face responses in the Rorschach, these responses were analyzed in a reference sample of nonpatients (n = 247) conducted in France as part of a of the French-language normative project. Descriptive data on face responses according to the Comprehensive System are provided as well as an analysis of their perceptual characteristics. In addition, a subgroup of nonpatients giving a relatively high number of face responses was found to differ from other nonpatients on several self and interpersonal perception variables. The perceptual features and the possible clinical significance of face responses on the Rorschach are discussed with an emphasis on the possible merit of distinguishing the face category from the other human content details.

scholarly journals QOL-15. NEURAL NETWORK INTEGRITY FOR FACIAL AFFECT RECOGNITION IN SURVIVORS OF MEDULLOBLASTOMA

2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii433-iii434
Author(s):  
Tara Brinkman ◽  
Kevin Krull ◽  
Matthew Scoggins ◽  
Zhenghong Li ◽  
John Glass ◽  
...  
Keyword(s):  
Neural Network ◽  
Face Perception ◽  
Diffusion Tensor ◽  
Recognition Task ◽  
Facial Affect ◽  
Behavioral Measure ◽  
Affect Recognition ◽  
Facial Affect Recognition ◽  
The Face ◽  
Left And Right

Abstract BACKGROUND Medulloblastoma survivors are at risk for social deficits, yet underlying mechanisms are poorly understood. METHODS Facial affect recognition was assessed in 50 medulloblastoma survivors treated with craniospinal radiation (median[range] 21.4[12.5–30.9] years old, 11.0[5.7–22.6] years since diagnosis) and 56 non-cancer age-, sex-, and race-matched controls. Brain activation and connectivity in core regions/nodes of the face perception network (fusiform gyri, occipital gyri, superior temporal sulcus) were examined using structural and functional neuroimaging. Structural networks were constructed from diffusion tensor imaging (DTI) data and individual node strength and efficiency were assessed. Functional MRI (fMRI) was conducted using a 1-back facial affect recognition task with assessment of regional differences in task-related cerebral blood flow (BOLD). Standardized neurocognitive testing was completed with 24 hours of brain imaging. RESULTS Medulloblastoma survivors performed worse on a behavioral measure of facial affect recognition (P=0.003) compared to matched controls. During the facial affect recognition task, controls demonstrated greater BOLD activation of the left and right fusiform gyri and the left and right middle occipital gyri compared to survivors (P’s<0.05, corrected for multiple comparisons). DTI indicated weaker core node strength in survivors in the right lateral occipital gyri (P=0.02) and efficiency was lower in the left (P=0.01) and right (P=0.03) occipital gyri compared to controls. CONCLUSIONS Medulloblastoma survivors have deficits in facial affect recognition and reduced activation and efficiency in brain regions comprising the face perception network compared to matched controls. Interventions targeting this specific skill and neural network may improve social functioning in survivors.

Conventions and temporal differences in painted faces: A study of posture and color distribution

2020 ◽  
Vol 2020 (11) ◽  
pp. 267-1-267-8
Author(s):  
Mitchell J.P. van Zuijlen ◽  
Sylvia C. Pont ◽  
Maarten W.A. Wijntjes
Keyword(s):  
Scientific Community ◽  
Human Face ◽  
Art Galleries ◽  
Art Collections ◽  
Color Distribution ◽  
Scientific Domain ◽  
The Face ◽  
And Gender ◽  
Changes Over Time ◽  
Over Time

The human face is a popular motif in art and depictions of faces can be found throughout history in nearly every culture. Artists have mastered the depiction of faces after employing careful experimentation using the relatively limited means of paints and oils. Many of the results of these experimentations are now available to the scientific domain due to the digitization of large art collections. In this paper we study the depiction of the face throughout history. We used an automated facial detection network to detect a set of 11,659 faces in 15,534 predominately western artworks, from 6 international, digitized art galleries. We analyzed the pose and color of these faces and related those to changes over time and gender differences. We find a number of previously known conventions, such as the convention of depicting the left cheek for females and vice versa for males, as well as unknown conventions, such as the convention of females to be depicted looking slightly down. Our set of faces will be released to the scientific community for further study.

Real Time Person Recognition and Attendance Marking Using Holistic Based Approach

2017 ◽  
Vol 7 (7) ◽  
pp. 302
Author(s):  
Reshma P ◽  
Muneer VK ◽  
Muhammed Ilyas P
Keyword(s):  
Face Recognition ◽  
Real Time ◽  
High Accuracy ◽  
Efficient Technique ◽  
Human Face ◽  
Traditional Methods ◽  
Person Recognition ◽  
The Face

Face recognition is a challenging task for the researches. It is very useful for personal verification and recognition and also it is very difficult to implement due to all different situation that a human face can be found. This system makes use of the face recognition approach for the computerized attendance marking of students or employees in the room environment without lectures intervention or the employee. This system is very efficient and requires very less maintenance compared to the traditional methods. Among existing methods PCA is the most efficient technique. In this project Holistic based approach is adapted. The system is implemented using MATLAB and provides high accuracy.

Utilising Indigenous Knowledge or Crime against Humanity?: A Critical Engagement with the Debate Generated by Alick Macheso’s Use of Manhood to Treat Nhova (Sunken Fontanelle)

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Charles Tembo ◽  
Allan Maganga ◽  
Peterson Dewah
Keyword(s):  
Ethical Issues ◽  
General Tendency ◽  
Ethical Values ◽  
Ethical Considerations ◽  
Lower Back ◽  
African Ethics ◽  
Cultural Grounding ◽  
The Face ◽  
Left And Right ◽  
Points Of View

 This article presents various points of view regarding the treatment of sunken fontanelle by various communities as ignited by the controversial practice of kutara(a practice that involves the father of a child sliding his penis from the lower part of the left and right cheeks to the top of the head, as well as from the lower part of the face to the top of the head, and from the lower back part of the head to the top). The story of Alick Macheso’s use of his manhood to treat nhova (sunken fontanelle) opened a Pandora’s box. The story not only attracted the attention of critics from diverse cultural and ethical backgrounds, but revealed multi-ethnic positions. That is, reactions were steeped in a multiplicity of intellectual, religious and even cultural grounding. Reactions ranged from accusations of backwardness and absurdity, through to medical and Christian orientations toward the treatment of nhova. The overarching idea is that there is a general tendency to dismiss the age-old practice of kutara,coupled with an uncritical celebration of certain positions. The debate that ensued following publication of the story seemed to revolve around ethical considerations. The school of thought that dismisses kutara with disdain regards it as unethical and unimaginable in the present-day world—it is redolent with insinuations of absurdity on the part of those that live and celebrate it. We contend that the raging debate that followed the publication of the story can best be conceptualised within the context of African ethics. We note that kutara has relevance to the spirituality, ethical values, privacy, and protection of children’s rights, among other ethical issues. It is hoped that the article will stir further debate and encourage more research among information practitioners, scholars and researchers into the ethical issues surrounding the treatment of sunken fontanelle in various African communities. It argues for an Afrocentric conceptualisation of phenomena in order to contribute to debates on the renaissance of African cultures, and stresses that it is imperative to harness the life-furthering age-old traditions in African ontological existence.

scholarly journals The COVID-19 pandemic masks the way people perceive faces

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Erez Freud ◽  
Andreja Stajduhar ◽  
R. Shayna Rosenbaum ◽  
Galia Avidan ◽  
Tzvi Ganel
Keyword(s):  
Social Interactions ◽  
Face Perception ◽  
Face Processing ◽  
Qualitative Change ◽  
Daily Activities ◽  
Human Face ◽  
Human Face Recognition ◽  
Processing Abilities ◽  
Partially Occluded ◽  
The Way

AbstractThe unprecedented efforts to minimize the effects of the COVID-19 pandemic introduce a new arena for human face recognition in which faces are partially occluded with masks. Here, we tested the extent to which face masks change the way faces are perceived. To this end, we evaluated face processing abilities for masked and unmasked faces in a large online sample of adult observers (n = 496) using an adapted version of the Cambridge Face Memory Test, a validated measure of face perception abilities in humans. As expected, a substantial decrease in performance was found for masked faces. Importantly, the inclusion of masks also led to a qualitative change in the way masked faces are perceived. In particular, holistic processing, the hallmark of face perception, was disrupted for faces with masks, as suggested by a reduced inversion effect. Similar changes were found whether masks were included during the study or the test phases of the experiment. Together, we provide novel evidence for quantitative and qualitative alterations in the processing of masked faces that could have significant effects on daily activities and social interactions.

scholarly journals Edemas of the face and lymphoscintigraphic examination

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pierre Bourgeois ◽  
E. Peters ◽  
A. Van Mieghem ◽  
A. Vrancken ◽  
G. Giacalone ◽  
...  
Keyword(s):  
Head And Neck Cancer ◽  
Lymph Node ◽  
Cervical Lymph Node ◽  
Cervical Vertebra ◽  
Lymphatic Drainage ◽  
The Face ◽  
Facial Edema ◽  
Post Traumatic ◽  
Left And Right ◽  
Lymphatic Pathways

AbstractFacial edemas not secondary to surgery and/or radiotherapy for head and neck cancer are relatively uncommon. Our aim is to report a retrospective analysis of the lymphoscintigraphic and SPECT-CT investigations obtained in patients with such facial edema. Retrospective review of exams (planar imagings in all and with SPECT-CT in 5) obtained after the subcutaneous injection of 99mTc HSA Nanosized colloids between the eyebrows in five men and seven women. Four main lymphatic pathways were identified on sequential planar imagings: para-nasal left and right and supra- ocular left and right. For eleven patients, the absence of visualization of lymphatic drainage and/or their delayed appearance correlated well with the localisation of the edematous areas. In two patients with post-traumatic and post- surgical edemas, SPECT-CT showed one deep left sided cervical lymph node (LN) in front of the first cervical vertebra. This lymphoscintigraphic approach represents a simple and valuable way to assess the lymphatic drainage pathways of the face and to establish the diagnosis of facial lymphedema.

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