Justin Duncan

Justin Duncan
Université de Fribourg · Département de psychologie

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27
Publications
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Citations

Publications

Publications (27)
Article
A Correction to this paper has been published: https://doi.org/10.3758/s13414-021-02246-9
Article
Full-text available
When two tasks, Task 1 and Task 2, are conducted in close temporal proximity and a separate speeded response is required for each target (T1 and T2), T2 report performance decreases as a function of its temporal proximity to T1. This so-called psychological refractory period (PRP) effect on T2 processing is largely assumed to reflect interference f...
Article
Full-text available
Rapid and accurate processing of potential social threats is paramount to social thriving, and provides a clear evolutionary advantage. Though automatic processing of facial expressions has been assumed for some time, some researchers now question the extent to which this is the case. Here, we provide electrophysiological data from a psychological...
Article
In recent years, horizontal spatial information has received attention for its role in face perception. One study, for instance, has reported an association between horizontal tuning for faces and face identification ability measured within the same task. A possible consequence of this is that the correlation could have been overestimated. In the p...
Article
Full-text available
Facial expressions of emotion play a key role in social interactions. While in everyday life, their dynamic and transient nature calls for a fast processing of the visual information they contain, a majority of studies investigating the visual processes underlying their recognition have focused on their static display. The present study aimed to ga...
Article
There is an ongoing debate in the literature about whether facial emotion perception is carried automatically-that is, without effort or attentional resources. While it is generally accepted that spatial attention is necessary for the perception of emotional facial expressions, the picture is less clear for central attention. Using the bubbles meth...
Conference Paper
To investigate if emotional face processing requires central attention, a psychological refractory period paradigm was combined with the event-related potential (ERP) technique. Participants were asked to categorize tones as high (900 Hz or 2000 Hz) or low (200 Hz or 426 Hz) as quickly and accurately as possible and then to indicate if a face expre...
Article
Horizontal information was recently suggested to be crucial for face identification. In the present paper, we expand on this finding and investigate the role of orientations for all the basic facial expressions and neutrality. To this end, we developed orientation bubbles to quantify utilization of the orientation spectrum by the visual system in a...
Conference Paper
Facial expression recognition (Huynh & Balas, 2014) correlates with horizontal information utilization, and it also correlates with local information utilization (e.g. mouth; Blais et al., 2012). However, the link between these two aspects of visual processing remains elusive. Our aim was to provide a first examination of this link, and refine curr...
Conference Paper
Full-text available
Hills and coll. (2014) have suggested that the natural face contour is a fundamental part of the whole face. Here, we investigated the impact of the natural contour on face recognition by measuring the integration index (Φ), a measure of feature integration in face processing (Gold et al., 2012). Twelve participants (8 women) completed 840 trials p...
Article
It is generally thought that faces are perceived as indissociable wholes. As a result, many assume that hiding large portions of the face by the addition of noise or by masking limits or qualitatively alters natural "expert" face processing by forcing observers to use atypical processing mechanisms. We addressed this question by measuring face proc...
Poster
Full-text available
Face recognition is a complex task on perceptual and cognitive levels. Indeed, significant differences in face recognition abilities exist within the normal population (Duchaine & Nakayama, 2006), and these differences could be accounted for by qualitative and quantitative variations in the perceptual mechanisms associated with face identification....
Poster
Recent research has brought attention to the importance of the orientation tuning of visual information. For instance, in face recognition, participants show higher efficiency for horizontal information (e.g. Pachai, Sekuler & Bennett, 2013). Here, we investigated whether this also applies to visual word recognition. Fifteen participants performed...
Conference Paper
It has been shown that stress modifies the allocation of attentional resources such that the perceptual field is narrowed (Staal, 2004), and that attention modulates early visual mechanisms such as contrast sensitivity (Carrasco, Penpeci-Talgar, & Eckstein, 2000). Here, we investigated whether social stress has an impact on the sensitivity to diffe...
Article
The fact that a mere glance makes it possible to extract a wealth of information about the person being observed is testament to both the salience of the human face and the brain's high efficiency in processing this information. Prior work has revealed that social judgments of faces are determined by facial features that vary on two orthogonal dime...
Article
When asked to judge an unknown face on social traits such as trustworthiness and dominance, a high level of agreement is found among people, suggesting that some visual information in faces correlates with these judgements (Oosterhof & Todorov, 2008). We used the Bubbles technique (Gosselin & Schyns, 2001) to reveal the visual information used to j...