Left-Side Bias Is Observed in Sequential Matching Paradigm for Face Processing

Li, Chenglin; Li, Qinglan; Wang, Jianping; Cao, Xiaohua

doi:10.3389/fpsyg.2018.02005

Cited by 7 publications

(3 citation statements)

References 74 publications

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“…There still could be other strategies in this preference judgment task without time pressure. Therefore, future studies should consider the sequential paradigm to exclude any potential strategy (Li et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

The left-side bias is not unique to own-race face processing

Wang

Bao

et al. 2021

Atten Percept Psychophys

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Humans show a clear left-side bias in face processing. A chimeric face constructed with the left side (from the viewer's perspective) of a face and its mirror image is usually rated as more resemblant to the original face than a chimeric face constructed with the right side of the same face. Previous studies have characterized the left-side bias mainly with own-race faces, but it remains unclear whether this effect is race specific or if it reflects an universal visual expertise. One hundred and five Chinese students completed two versions of a chimeric face-identification task. The results revealed a significant left-side bias for both own-race (Chinese) and other-race (Caucasian) faces, suggesting that the left-side bias reflects an universal visual expertise in face processing.

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Section: Discussionmentioning

confidence: 99%

The left-side bias is not unique to own-race face processing

Wang

Bao

et al. 2021

Atten Percept Psychophys

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“…Similar results have been obtained in studies involving Caucasian children (Aljuhanay et al, 2010 ; Balas and Moulson, 2011 ; Proietti et al, 2015 ), young adults (Burt and Perrett, 1997 ; Butler and Harvey, 2005 ; Butler et al, 2005 ), and older adults (Levine and Levy, 1986 ; Coolican et al, 2008 ). Asian participants have also shown a left-side bias in relation to own-race adult faces (Chung et al, 2017 ; Li and Cao, 2017 ; Li et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

The Left-Side Bias Is Reduced to Other-Race Faces in Caucasian Individuals

Kang

Sommer

et al. 2022

Front. Psychol.

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One stable marker of face perception appears to be left-side bias, the tendency to rely more on information conveyed by the left side of the face than the right. Previous studies have shown that left-side bias is influenced by familiarity and prior experience with face stimuli. Since other-race facial recognition is characterized by reduced familiarity, in contrast to own-race facial recognition, the phenomenon of left-side bias is expected to be weaker for other-race faces. Among Chinese participants, face inversion has been found to eliminate the left-side bias associated with own-race faces. Therefore, it is of interest to know whether face inversion influences left-side bias for non-Chinese research participants and can be generalized across own- and other-race faces. This study assessed 65 Caucasian participants using upright and inverted chimeric Caucasian and Asian faces in an identity similarity-judgment task. Although a significant left-side bias was observed for upright own-race faces, this bias was eliminated by facial inversion, indicating that such a bias depends on the applicability of configural processing strategies. For other-race faces, there was no left-side bias in the upright condition. Interestingly, the inverted presentation yielded a right-side bias. These results show that while left-side bias is affected by familiarity differences between own- and other-race faces, it is a universal phenomenon for upright faces. Inverted presentation strongly reduces left-side bias and may even cause it to revert to right-side bias, suggesting that left-side bias depends on configural face processing.

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“…Finally, we also aimed at assessing whether the anorthoscopic presentation is also characterized by another well-know bias, namely the Left-Face Bias (e.g. Li, Li, Wang, & Cao, 2018), according to which facial stimuli are mainly categorized based on their leftward half, due to the right-hemispheric superiority in face processing (e.g., Bodamer, 1947;Kanwisher, McDermott, & Chun, 1997;Rhodes, 1985).…”

Section: Introductionmentioning

confidence: 99%

Assessing the presence of face biases by means of anorthoscopic perception

Tommasi

Prete

Tommasi

2020

Atten Percept Psychophys

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Anorthoscopy is a presentation mode in which an image is shown sliding behind a slit-shaped aperture, so that it is visible only part by part and never in its entirety. With the aims to assess (1) whether the processing of complex stimuli (faces) correctly occurs in anorthoscopy, and (2) whether the Own-Gender Bias (OGB: the better recognition of stimuli belonging to the same gender of the observer: faster and more accurate) and the Left-Face Bias (LFB: the preference to analyze the left half of the face) occur in such a part by part presentation, we presented female and male faces as whole stimuli (Experiment 1) and in anorthoscopy (Experiments 2 and 3), as well as female/male chimeric faces (Experiment 4), during a gender categorization task. Experiment 1 confirmed that participants correctly categorized the gender of faces, but the OGB was not found. In Experiments 2 and 3 we manipulated the direction (Experiment 2: upward/downward; Experiment 3: leftward/rightward), the speed (slow and fast) of the sliding faces, and the width of the aperture (small and large). Both tasks revealed that facial gender was correctly categorized in anorthoscopy. The OGB was found, but only for males/females in Experiments 2/3, respectively. In Experiment 4 the LFB emerged only in the tachistoscopic session, suggesting that this perceptual bias does not extend to anorthoscopy.

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Left-Side Bias Is Observed in Sequential Matching Paradigm for Face Processing

Cited by 7 publications

References 74 publications

The left-side bias is not unique to own-race face processing

The left-side bias is not unique to own-race face processing

The Left-Side Bias Is Reduced to Other-Race Faces in Caucasian Individuals

Assessing the presence of face biases by means of anorthoscopic perception

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