The face perception system becomes species-specific at 3 months: An eye-tracking study

2012 ◽  
Vol 37 (2) ◽  
pp. 95-99 ◽  
Author(s):  
Elisa Di Giorgio ◽  
David Méary ◽  
Olivier Pascalis ◽  
Francesca Simion
Keyword(s):  
Eye Tracking ◽  
Face Perception ◽  
Visual Experience ◽  
Specific Class ◽  
Perception System ◽  
The Face ◽  
Perceptual Characteristics ◽  
Species Specific ◽  
Species Preferences ◽  
Human Faces

The current study aimed at investigating own- vs. other-species preferences in 3-month-old infants. The infants’ eye movements were recorded during a visual preference paradigm to assess whether they show a preference for own-species faces when contrasted with other-species faces. Human and monkey faces, equated for all low-level perceptual characteristics, were used. Our results demonstrated that 3-month-old infants preferred the human face, suggesting that the face perception system becomes species-specific after 3 months of visual experience with a specific class of faces. The eye tracking results are also showing that fixations were more focused on the eye area of human faces, supporting the notion of their importance in holding visual attention.

Is the face-perception system human-specific at birth?

2012 ◽  
Vol 48 (4) ◽  
pp. 1083-1090 ◽  
Author(s):  
Elisa Di Giorgio ◽  
Irene Leo ◽  
Olivier Pascalis ◽  
Francesca Simion
Keyword(s):  
Face Perception ◽  
Perception System ◽  
The Face ◽  
Human Specific

scholarly journals Electrophysiological Studies of Face Perception in Humans

1996 ◽  
Vol 8 (6) ◽  
pp. 551-565 ◽  
Author(s):  
Shlomo Bentin ◽  
Truett Allison ◽  
Aina Puce ◽  
Erik Perez ◽  
Gregory McCarthy
Keyword(s):  
Face Perception ◽  
Event Related Potentials ◽  
Neural Mechanism ◽  
Differential Sensitivity ◽  
Temporal Region ◽  
Electrophysiological Studies ◽  
The Face ◽  
Related Potentials ◽  
The Right ◽  
Human Faces

Event-related potentials (ERPs) associated with face perception were recorded with scalp electrodes from normal volunteers. Subjects performed a visual target detection task in which they mentally counted the number of occurrences of pictorial stimuli from a designated category such as butterflies. In separate experiments, target stimuli were embedded within a series of other stimuli including unfamiliar human faces and isolated face components, inverted faces, distorted faces, animal faces, and other nonface stimuli. Human faces evoked a negative potential at 172 msec (N170), which was absent from the ERPs elicited by other animate and inanimate nonface stimuli. N170 was largest over the posterior temporal scalp and was larger over the right than the left hemisphere. N170 was delayed when faces were presented upside-down, but its amplitude did not change. When presented in isolation, eyes elicited an N170 that was significantly larger than that elicited by whole faces, while noses and lips elicited small negative ERPs about 50 msec later than N170. Distorted human faces, in which the locations of inner face components were altered, elicited an N170 similar in amplitude to that elicited by normal faces. However, faces of animals, human hands, cars, and items of furniture did not evoke N170. N170 may reflect the operation of a neural mechanism tuned to detect (as opposed to identify) human faces, similar to the “structural encoder” suggested by Bruce and Young (1986). A similar function has been proposed for the face-selective N200 ERP recorded from the middle fusiform and posterior inferior temporal gyri using subdural electrodes in humans (Allison, McCarthy, Nobre, Puce, & Belger, 1994c). However, the differential sensitivity of N170 to eyes in isolation suggests that N170 may reflect the activation of an eye-sensitive region of cortex. The voltage distribution of N170 over the scalp is consistent with a neural generator located in the occipitotemporal sulcus lateral to the fusiform/inferior temporal region that generates N200.

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.

Eyes as the Center of Focus in the Visual Examination of Human Faces

1978 ◽  
Vol 47 (3) ◽  
pp. 857-858 ◽  
Author(s):  
Stephen W. Janik ◽  
A. Rodney Wellens ◽  
Myron L. Goldberg ◽  
Louis F. Dell'Osso
Keyword(s):  
Eye Tracking ◽  
Visual Examination ◽  
The Face ◽  
Human Faces ◽  
Male Subjects ◽  
Eye Region

An experiment was conducted to determine the degree to which individuals focus upon the eye region of others while visually inspecting their faces. Using an eye-tracking camera, 16 male subjects spent approximately 40% of their looking time focused upon the eye region of facial photographs, with each of the remaining parts of the face being looked at less.

scholarly journals Charged With a Crime: The Neuronal Signature of Processing Negatively Evaluated Faces Under Different Attentional Conditions

2021 ◽  
pp. 095679762199666
Author(s):  
Sebastian Schindler ◽  
Maximilian Bruchmann ◽  
Claudia Krasowski ◽  
Robert Moeck ◽  
Thomas Straube
Keyword(s):  
Event Related Potentials ◽  
Emotional Information ◽  
Early Posterior Negativity ◽  
Information Studies ◽  
The Face ◽  
Related Potentials ◽  
Feature Based ◽  
Human Faces ◽  
Emotional Knowledge ◽  
Late Stages

Our brains rapidly respond to human faces and can differentiate between many identities, retrieving rich semantic emotional-knowledge information. Studies provide a mixed picture of how such information affects event-related potentials (ERPs). We systematically examined the effect of feature-based attention on ERP modulations to briefly presented faces of individuals associated with a crime. The tasks required participants ( N = 40 adults) to discriminate the orientation of lines overlaid onto the face, the age of the face, or emotional information associated with the face. Negative faces amplified the N170 ERP component during all tasks, whereas the early posterior negativity (EPN) and late positive potential (LPP) components were increased only when the emotional information was attended to. These findings suggest that during early configural analyses (N170), evaluative information potentiates face processing regardless of feature-based attention. During intermediate, only partially resource-dependent, processing stages (EPN) and late stages of elaborate stimulus processing (LPP), attention to the acquired emotional information is necessary for amplified processing of negatively evaluated faces.

scholarly journals Facial Feature Model for a Portrait Video Stylization

Symmetry ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 442 ◽  
Author(s):  
Dongxue Liang ◽  
Kyoungju Park ◽  
Przemyslaw Krompiec
Keyword(s):  
Facial Feature ◽  
Feature Model ◽  
Facial Features ◽  
Outer Face ◽  
Flow Estimation ◽  
Photorealistic Rendering ◽  
Stroke Models ◽  
The Face ◽  
Face Contour ◽  
Human Faces

With the advent of the deep learning method, portrait video stylization has become more popular. In this paper, we present a robust method for automatically stylizing portrait videos that contain small human faces. By extending the Mask Regions with Convolutional Neural Network features (R-CNN) with a CNN branch which detects the contour landmarks of the face, we divided the input frame into three regions: the region of facial features, the region of the inner face surrounded by 36 face contour landmarks, and the region of the outer face. Besides keeping the facial features region as it is, we used two different stroke models to render the other two regions. During the non-photorealistic rendering (NPR) of the animation video, we combined the deformable strokes and optical flow estimation between adjacent frames to follow the underlying motion coherently. The experimental results demonstrated that our method could not only effectively reserve the small and distinct facial features, but also follow the underlying motion coherently.

Algorithmic Analysis of Automatic Attendance System using Facial Recognition

2022 ◽  
Vol 14 (1) ◽  
pp. 0-0
Keyword(s):  
Face Recognition ◽  
Daily Life ◽  
Real Life ◽  
Student Attendance ◽  
Surveillance Camera ◽  
Daily Life Activities ◽  
The Face ◽  
Algorithmic Analysis ◽  
Human Faces ◽  
Face Biometrics

Attendance management can become a tedious task for teachers if it is performed manually.. This problem can be solved with the help of an automatic attendance management system. But validation is one of the main issues in the system. Generally, biometrics are used in the smart automatic attendance system. Managing attendance with the help of face recognition is one of the biometric methods with better efficiency as compared to others. Smart Attendance with the help of instant face recognition is a real-life solution that helps in handling daily life activities and maintaining a student attendance system. Face recognition-based attendance system uses face biometrics which is based on high resolution monitor video and other technologies to recognize the face of the student. In project, the system will be able to find and recognize human faces fast and accurately with the help of images or videos that will be captured through a surveillance camera. It will convert the frames of the video into images so that our system can easily search that image in the attendance database.

Experimental analysis of the control of expression of the homeobox-gene Msx-1 in the developing limb and face

Development ◽  
1993 ◽  
Vol 119 (1) ◽  
pp. 41-48 ◽  
Author(s):  
J.M. Brown ◽  
S.E. Wedden ◽  
G.H. Millburn ◽  
L.G. Robson ◽  
R.E. Hill ◽  
...  
Keyword(s):  
Homeobox Gene ◽  
Host Tissue ◽  
Face To Face ◽  
Limb Mesenchyme ◽  
The Face ◽  
Mesenchyme Cells ◽  
Species Specific ◽  
Signalling Systems ◽  
Control Of Expression

Mouse mesenchyme was grafted into chick embryos to investigate the control of mesenchymal expression of Msx-1 in the developing limb and face. In situ hybridization, using species-specific probes, allows a comparison between Msx-1 expression in the graft and the host tissue. The results show that Msx-1 expression in both limb-to-limb and face-to-face grafts corresponds closely with the level of Msx-1 expression in the surrounding chick mesenchyme. Cells in grafts that end up within the host domain of Msx-1 express the gene irrespective of whether they were from normally expressing, or non-expressing, regions. Therefore Msx-1 expression in both the developing limb and the developing face appears to be position-dependent. Mesenchyme from each of the three major facial primordia behaved in the same way when grafted to the chick maxillary primordium. Reciprocal grafts between face and limb gave a different result: Msx-1 expression was activated when facial mesenchyme was grafted to the limb but not when limb mesenchyme was grafted to the face. This suggests either that there are quantitative or qualitative differences in two local signalling systems or that additional factors determine the responsiveness of the mesenchyme cells.

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