Linear summation of spatial harmonics in human vision

Research output: Contribution to journalArticle

  • Authors:
  • R. V. Abadi
  • J. J. Kulikowski


Previous investigators (Tolhurst, 1972 and Nachmias et al., 1973) used suprathreshold of adaptation to re-examine the validity of Fourier theory in the detection of gratings. We have shown that the method of subthreshold summation eliminates possible factors obviously distorting linearity in their analysis of spatial harmonics when the adaptation technique is applied. Our results, by demonstrating the applicability of Fourier theory in the detection of gratings, confirm that this process may be regarded as linear at threshold. © 1973.

Bibliographical metadata

Original languageEnglish
Pages (from-to)1625-1628
Number of pages3
JournalVision Research
Issue number9
Publication statusPublished - Sep 1973