Abstract：
:Pupillary light reflex (PLR) is an involuntary response where the pupil size changes with luminance. Studies have shown that PLR response was altered in children with autism spectrum disorders (ASDs) and other neurological disorders. However, PLR in infants and toddlers is still understudied. We conducted a longitudinal study to investigate PLR in children of 6-24 months using a remote pupillography device. The participants are categorized into two groups. The 'high risk' (HR) group includes children with one or more siblings diagnosed with ASDs; whereas the 'low risk' (LR) group includes children without an ASD diagnosis in the family history. The participants' PLR was measured every six months until the age of 24 months. The results indicated a significant age effect in multiple PLR parameters including resting pupil radius, minimal pupil radius, relative constriction, latency, and response time. In addition, the HR group had a significantly larger resting and minimal pupil size than the LR group. The experimental data acquired in this study revealed not only general age-related PLR changes in infants and toddlers, but also different PLRs in children with a higher risk of ASD.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Kercher C,Azinfar L,Dinalankara DMR,Takahashi TN,Miles JH,Yao Gdoi
10.1038/s41598-020-58254-6subject
Has Abstractpub_date
2020-01-27 00:00:00pages
1205issue
1issn
2045-2322pii
10.1038/s41598-020-58254-6journal_volume
10pub_type
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