The Effects of Face Inversion and Face Race on the P100 ERP

2017 ◽  
Vol 29 (4) ◽  
pp. 664-676 ◽  
Author(s):  
Clara Colombatto ◽  
Gregory McCarthy
Keyword(s):  
Face Processing ◽  
Temporal Cortex ◽  
Inversion Effect ◽  
Neural Responses ◽  
Neural Basis ◽  
Face Inversion ◽  
Race Effects ◽  
Effect Difference ◽  
Behavioral Evidence ◽  
Black Faces

Research about the neural basis of face recognition has investigated the timing and anatomical substrates of different stages of face processing. Scalp-recorded ERP studies of face processing have focused on the N170, an ERP with a peak latency of ∼170 msec that has long been associated with the initial structural encoding of faces. However, several studies have reported earlier ERP differences related to faces, suggesting that face-specific processes might occur before N170. Here, we examined the influence of face inversion and face race on the timing of face-sensitive scalp-recorded ERPs by examining neural responses to upright and inverted line-drawn and luminance-matched white and black faces in a sample of white participants. We found that the P100 ERP evoked by inverted faces was significantly larger than that evoked by upright faces. Although this inversion effect was statistically significant at 100 msec, the inverted-upright ERP difference peaked at 138 msec, suggesting that it might represent an activity in neural sources that overlap with P100. Inverse modeling of the inversion effect difference waveform suggested possible neural sources in pericalcarine extrastriate visual cortex and lateral occipito-temporal cortex. We also found that the inversion effect difference wave was larger for white faces. These results are consistent with behavioral evidence that individuals process the faces of their own races more configurally than faces of other races. Taken together, the inversion and race effects observed in the current study suggest that configuration influences face processing by at least 100 msec.

Face Inversion Effect Emerges Under Critical Configural Discrepancy

2010 ◽  
Vol 69 (3) ◽  
pp. 161-167 ◽  
Author(s):  
Jisien Yang ◽  
Adrian Schwaninger
Keyword(s):  
Face Recognition ◽  
Face Processing ◽  
Underlying Mechanism ◽  
Inversion Effect ◽  
Configural Processing ◽  
Major Contributor ◽  
Face Inversion Effect ◽  
Configural Information ◽  
Face Inversion ◽  
The Face

Configural processing has been considered the major contributor to the face inversion effect (FIE) in face recognition. However, most researchers have only obtained the FIE with one specific ratio of configural alteration. It remains unclear whether the ratio of configural alteration itself can mediate the occurrence of the FIE. We aimed to clarify this issue by manipulating the configural information parametrically using six different ratios, ranging from 4% to 24%. Participants were asked to judge whether a pair of faces were entirely identical or different. The paired faces that were to be compared were presented either simultaneously (Experiment 1) or sequentially (Experiment 2). Both experiments revealed that the FIE was observed only when the ratio of configural alteration was in the intermediate range. These results indicate that even though the FIE has been frequently adopted as an index to examine the underlying mechanism of face processing, the emergence of the FIE is not robust with any configural alteration but dependent on the ratio of configural alteration.

scholarly journals Face inversion reveals holistic processing of peripheral faces

2017 ◽  
Author(s):  
Petra Kovács ◽  
Balázs Knakker ◽  
Petra Hermann ◽  
Gyula Kovács ◽  
Zoltán Vidnyánszky
Keyword(s):  
Visual Field ◽  
Right Hemisphere ◽  
Time Window ◽  
Temporal Cortex ◽  
Discrimination Performance ◽  
Holistic Processing ◽  
Inversion Effect ◽  
Right Visual Field ◽  
Face Inversion Effect ◽  
Face Inversion

AbstractFace perception is accomplished by face-selective neural processes, involving holistic processing that enables highly efficient integration of facial features into a whole face representation. It has been shown that in face-selective regions of the ventral temporal cortex, neural resources involved in holistic processing are primarily dedicated to the central portion of the visual field. These findings raise the intriguing possibility that holistic processing might be the privilege of centrally presented faces and could be strongly diminished in the case of peripheral faces. We addressed this question using the face inversion effect, a well established marker of holistic face processing. The behavioral results revealed impaired identity discrimination performance for inverted peripheral faces scaled according to the V1 magnification factor, compared to upright presented faces. The size of peripheral face inversion effect (FIE) was comparable to that found for centrally displayed faces. Face inversion affected the early ERP responses to faces in two time intervals. The earliest FIE was most pronounced in the time window between 130-140 ms following stimulus presentation, for both centrally and peripherally displayed faces and in the latter case, it was present only over the contralateral hemisphere. The timing of the next component FIE corresponded closely with the temporal interval of the N170 ERP component and showed strong right hemisphere lateralization, both when faces were displayed in the left or right visual field. Furthermore, we also showed that centrally presented face masks impaired peripheral face identity discrimination performance, but did not reduce the magnitude of the FIE. These findings revealed robust behavioral and neural inversion effects for peripheral faces and thus suggest that faces are processed holistically throughout the visual field.HighlightsRobust behavioral and neural inversion effect was found for peripheral faces.P1 ERP component is modulated by inverted central and contralateral faces.N170 ERP component is modulated by centrally and peripherally presented faces.Neural face inversion effect shows strong right hemisphere lateralization.Faces are processed holistically throughout the visual field.

scholarly journals Awake fMRI reveals a specialized region in dog temporal cortex for face processing

2015 ◽  
Author(s):  
Daniel D Dilks ◽  
Peter Cook ◽  
Samuel K Weiller ◽  
Helen P Berns ◽  
Mark H Spivak ◽  
...  
Keyword(s):  
Face Processing ◽  
Temporal Cortex ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Everyday Objects ◽  
Face Area ◽  
Face Selectivity ◽  
Behavioral Evidence ◽  
Specialized Region ◽  
Human Faces

Recent behavioral evidence suggests that dogs, like humans and monkeys, are capable of visual face recognition. But do dogs also exhibit specialized cortical face regions similar to humans and monkeys? Using functional magnetic resonance imaging (fMRI) in six dogs trained to remain motionless during scanning without restraint or sedation, we found a region in the canine temporal lobe that responded significantly more to movies of human faces than to movies of everyday objects. Next, using a new stimulus set to investigate face selectivity in this predefined candidate dog face area, we found that this region responded similarly to images of human faces and dog faces, yet significantly more to both human and dog faces than to images of objects. Such face selectivity was not found in dog primary visual cortex. Taken together, these findings: 1) provide the first evidence for a face-selective region in the temporal cortex of dogs, which cannot be explained by simple low-level visual feature extraction; 2) reveal that neural machinery dedicated to face processing is not unique to primates; and 3) may help explain dogs’ exquisite sensitivity to human social cues.

scholarly journals The Neural Basis of the Behavioral Face-Inversion Effect

2005 ◽  
Vol 15 (24) ◽  
pp. 2256-2262 ◽  
Author(s):  
Galit Yovel ◽  
Nancy Kanwisher
Keyword(s):  
Inversion Effect ◽  
Neural Basis ◽  
Face Inversion Effect ◽  
Face Inversion

The Face-Inversion Effect as a Deficit in the Encoding of Configural Information: Direct Evidence

Perception ◽  
10.1068/p3012 ◽  
2000 ◽  
Vol 29 (2) ◽  
pp. 159-170 ◽  
Author(s):  
Alejo Freire ◽  
Kang Lee ◽  
Lawrence A Symons
Keyword(s):  
Face Processing ◽  
Direct Evidence ◽  
Inversion Effect ◽  
Matching To Sample ◽  
Delayed Matching ◽  
Face Inversion Effect ◽  
Configural Information ◽  
Face Inversion ◽  
The Face ◽  
Repeated Experiment

We report four experiments leading to conclusions that: (i) the face-inversion effect is mainly due to the deficits in processing of configural information from inverted faces; and (ii) this effect occurs primarily at the encoding stage of face processing, rather than at the storage stage. In experiment 1, participants discriminated upright faces differing primarily in configuration with 81% accuracy. Participants viewing the same faces presented upside down scored only 55%. In experiment 2, the corresponding discrimination rates for faces differing mainly in featural information were 91% (upright) and 90% (inverted). In experiments 3 and 4, the same faces were used in a memory paradigm. In experiment 3, a delayed matching-to-sample task was used, in which upright-face pairs differed either in configuration or features. Recognition rates were comparable to those for the corresponding upright faces in the discrimination tasks in experiments 1 and 2. However, there was no effect of delay (1 s, 5 s, or 10 s). In experiment 4, we repeated experiment 3, this time with inverted faces. Results were comparable to those of inverted conditions in experiments 1 and 2, and again there was no effect of delay. Together these results suggest that an ‘encoding bottleneck’ for configural information may be responsible for the face-inversion effect in particular, and memory for faces in general.

scholarly journals The development of race effects in face processing from childhood through adulthood: Neural and behavioral evidence

2020 ◽  
Author(s):  
Golijeh Golarai ◽  
Dara G. Ghahremani ◽  
Anders C. Greenwood ◽  
John D. E. Gabrieli ◽  
Jennifer L. Eberhardt
Keyword(s):  
Face Processing ◽  
Race Effects ◽  
Behavioral Evidence

scholarly journals Awake fMRI reveals a specialized region in dog temporal cortex for face processing

2015 ◽  
Author(s):  
Daniel D Dilks ◽  
Peter Cook ◽  
Samuel K Weiller ◽  
Helen P Berns ◽  
Mark H Spivak ◽  
...  
Keyword(s):  
Face Processing ◽  
Temporal Cortex ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
Everyday Objects ◽  
Face Area ◽  
Face Selectivity ◽  
Behavioral Evidence ◽  
Specialized Region ◽  
Human Faces

Recent behavioral evidence suggests that dogs, like humans and monkeys, are capable of visual face recognition. But do dogs also exhibit specialized cortical face regions similar to humans and monkeys? Using functional magnetic resonance imaging (fMRI) in six dogs trained to remain motionless during scanning without restraint or sedation, we found a region in the canine temporal lobe that responded significantly more to movies of human faces than to movies of everyday objects. Next, using a new stimulus set to investigate face selectivity in this predefined candidate dog face area, we found that this region responded similarly to images of human faces and dog faces, yet significantly more to both human and dog faces than to images of objects. Such face selectivity was not found in dog primary visual cortex. Taken together, these findings: 1) provide the first evidence for a face-selective region in the temporal cortex of dogs, which cannot be explained by simple low-level visual feature extraction; 2) reveal that neural machinery dedicated to face processing is not unique to primates; and 3) may help explain dogs’ exquisite sensitivity to human social cues.

scholarly journals Developmental changes in the processing of faces as revealed by EEG decoding

2019 ◽  
Author(s):  
Inês Mares ◽  
Louise Ewing ◽  
Emily K. Farran ◽  
Fraser W Smith ◽  
Marie L Smith
Keyword(s):  
Face Processing ◽  
Inversion Effect ◽  
Broad Face ◽  
Individual Level ◽  
Face Inversion Effect ◽  
Face Inversion ◽  
Face Categorization ◽  
Age Related ◽  
The Face ◽  
Processing Mechanisms

AbstractRapidly and accurately processing information from faces is a critical human function that is known to improve with developmental age. Understanding the underlying drivers of this improvement remains a contentious question, with debate continuing as to the presence of early vs. late maturation of face-processing mechanisms. Recent behavioural evidence suggests an important ‘hallmark’ of expert face processing – the face inversion effect – is present in very young children, yet neural support for this remains unclear. To address this, we conducted a detailed investigation of the neural dynamics of face-selective processing in children spanning a range of ages (6 – 11 years) and adults. Uniquely, we applied multivariate pattern analysis (MVPA) to the electroencephalogram signal (EEG) to test for the presence of a distinct neural profile associated with canonical upright faces when compared both to other objects (houses) and to inverted faces. Results revealed robust discrimination profiles, at the individual level, of differentiated neural activity associated with broad face categorization and further with its expert processing, as indexed by the face inversion effect, from the youngest ages tested. This result is consistent with an early functional maturation of broad face processing mechanisms. Yet, clear quantitative differences between the response profile of children and adults is suggestive of age-related refinement of this system with developing face and general expertise. Standard ERP analysis also provides some support for qualitative differences in the neural response to inverted faces in children in contrast to adults. This neural profile is in line with recent behavioural studies that have reported impressively expert early face abilities during childhood, while also providing novel evidence of the ongoing neural specialisation between child and adulthood.

scholarly journals Neural Responses to Facial Attractiveness in the Judgments of Moral Goodness and Moral Beauty

2021 ◽  
Author(s):  
Qiuping Cheng ◽  
Zhili Han ◽  
Shun Liu ◽  
Yilong Kong ◽  
Xuchu Weng ◽  
...  
Keyword(s):  
Visual Analysis ◽  
Critical Role ◽  
Temporal Cortex ◽  
Facial Attractiveness ◽  
Neural Responses ◽  
Neural Basis ◽  
Moral Goodness ◽  
Facial Identity ◽  
Ventral Medial Prefrontal Cortex ◽  
Moral Beauty

Abstract The judgments of moral goodness and moral beauty objectively refer to the perception and evaluation of moral traits, which are generally influenced by facial attractiveness. For centuries, people have equated beauty with the possession of positive qualities, but it is not clear whether the association between beauty and positive qualities exerts a similarly implicit influence on people`s responses to moral goodness and moral beauty, how it affects those responses, and what is the neural basis for such an effect. The present study is the first to examine the neural responses to facial attractiveness in the judgments of moral goodness and moral beauty. We found that beautiful faces in both moral judgments activated the left ventral occipitotemporal cortices sensitive to the geometric configuration of the faces, demonstrating that both moral goodness and moral beauty required the automatic visual analysis of geometrical configuration of attractive faces. In addition, compared to beautiful faces during moral goodness judgment, beautiful faces during moral beauty judgment induced unique activity in the ventral medial prefrontal cortex and midline cortical structures involved in the emotional-valenced information about attractive faces. The opposite comparison elicited specific activity in the left superior temporal cortex and premotor area, which play a critical role in the recognition of facial identity. Our results demonstrated that the neural responses to facial attractiveness in the process of higher order moral decision-makings exhibits both task-general and task-specific characteristics. Our findings contribute to the understanding of the essence of the relationship between morality and aesthetics.

Sign in / Sign up

Export Citation Format

Share Document