Scotopic contrast sensitivity in infants evaluated by evoked potentials

A. Fiorentini, M. Pirchio, D. Spinelli

Research output: Contribution to journalArticlepeer-review


The contrast sensitivity function of infants 2.5 to 6 months old has been obtained at mean luminances of 6 and 0.06 cd/m2 by recording visual evoked potentials in response to sinusoidal gratings of various spatial frequencies alternating in phase at 8 Hz. The scotopic contrast sensitivity develops earlier than the photopic contrast sensitivity, reaching values very close to those of the adult between 4 and 5 months of age. This suggests that mechanisms responsible for adaptive changes of receptive field organization from night to day vision are not yet mature at this age.

Original languageEnglish
Pages (from-to)950-955
Number of pages6
JournalInvestigative Ophthalmology and Visual Science
Issue number8
Publication statusPublished - 1980

ASJC Scopus subject areas

  • Ophthalmology

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