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Spectral sensitivity of the 2 month infant as measured by the visually evoked cortical potential


, : Spectral sensitivity of the 2 month infant as measured by the visually evoked cortical potential. Vision Research 16(4): 367-374

The spectral sensitivity functions of 5 2-mo. infants and 2 adults were determined through measurement of implicit time of the visually evoked cortical potential (VEP). Implicit times were plotted against log energy for each of 8 wavelengths throughout the spectrum. Spectral sensitivity curves derived from these plots showed that the 2-mo. infant was similar to the adult for wavelengths above 550 nm, but somewhat more sensitive than the adult below 550 nm. A likely explanation is that the macular pigment is less dense in the infant than in the adult, and therefore more short-wave radiation reaches the infant's photoreceptors.

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Accession: 006459891

PMID: 941413

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