Reference : The non-linear development of the right hemispheric specialization for human face per...
Scientific journals : Article
Social & behavioral sciences, psychology : Neurosciences & behavior
The non-linear development of the right hemispheric specialization for human face perception
Lochy, Aliette mailto [University of Luxembourg > Faculty of Language and Literature, Humanities, Arts and Education (FLSHASE) > Education, Culture, Cognition and Society (ECCS) >]
de Heering, Adelaïde [Université Libre de Bruxelles - ULB]
Rossion, Bruno [université de Lorraine]
Yes (verified by ORBilu)
United Kingdom
[en] face perception ; development ; right lateralization ; EEG
[en] The developmental origins of human adults’ right hemispheric specialization for face perception remain unclear.
On the one hand, infant studies have shown a right hemispheric advantage for face perception. On the other
hand, it has been proposed that the adult right hemispheric lateralization for face perception slowly emerges
during childhood due to reading acquisition, which increases left lateralized posterior responses to competing
written material (e.g., visual letters and words). Since methodological approaches used in infant and children
typically differ when their face capabilities are explored, resolving this issue has been difficult. Here we tested 5-
year-old preschoolers varying in their level of visual letter knowledge with the same fast periodic visual stimulation (FPVS) paradigm leading to strongly right lateralized electrophysiological occipito-temporal face-selective responses in 4- to 6-month-old infants (de Heering and Rossion, 2015). Children's face-selective response
was quantitatively larger and differed in scalp topography from infants’, but did not differ across hemispheres.
There was a small positive correlation between preschoolers’ letter knowledge and a non-normalized index of
right hemispheric specialization for faces. These observations show that previous discrepant results in the literature reflect a genuine nonlinear development of the neural processes underlying face perception and are not
merely due to methodological differences across age groups. We discuss several factors that could contribute to
the adult right hemispheric lateralization for faces, such as myelination of the corpus callosum and reading
acquisition. Our findings point to the value of FPVS coupled with electroencephalography to assess specialized
face perception processes throughout development with the same methodology

File(s) associated to this reference

Fulltext file(s):

Open access
LochyDeHeeringRossion_NonLinearDevFacePerc_2019.pdfPublisher postprint453.4 kBView/Open

Bookmark and Share SFX Query

All documents in ORBilu are protected by a user license.