par Bourgaux, Laura 
;Quek, Genevieve G.L.;De Heering, Adélaïde
Référence FIT'NG (7-9/09/2025: Dublin, Ireland)
Publication Non publié, 2025-09-07
;Quek, Genevieve G.L.;De Heering, Adélaïde Référence FIT'NG (7-9/09/2025: Dublin, Ireland)
Publication Non publié, 2025-09-07
Poster de conférence
| Résumé : | Faces hold a unique status in human perception, naturally capturing infants’ attention (Gliga et al. 2009; Reynolds and Roth 2018). However, the role of early attentional processes in shaping visual perception remains unclear. Using a frequency-tagging approach combined with electroencephalography (Quek and de Heering 2024), the present study investigates whether infants’ attentional dynamics toward distinct visual categories, including highly salient stimuli such as faces, can be modulated. To this end, 6- to 9-month-old infants will view rapid streams of images flickering at the frequency of 6 Hz (6 images/second), with faces and birds interlaced at 1.2 Hz (1 out of 5 images) and 1.5 Hz (1 out of 4 images), respectively. Crucially, either human voices or bird vocalizations will be presented non-periodically throughout each trial to test if different auditory cues facilitate infants’ attention towards highly salient stimuli (faces) versus less salient stimuli (birds). Given that infants’ face categorization is less robust than in adults (Leleu et al., 2020), we hypothesize that the face-selective response will be facilitated by human voices. Alternatively, this response may remain unaffected, reflecting a ceiling effect due to the natural saliency of faces, as observed in adults (Quek and de Heering 2024). Overall, this work will shed light on the role of attentional dynamics early in life and provide broader insights into the visual processing of faces and of less salient categories such as birds. |
