Complex visual textures as a tool for studying the VEP

Jonathan D. Victor

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


A method of separating components of the visual evoked potential by using complex visual textures is described. Interchange of visual textures with identical power specta and third-order autocorrelations elicits a response which may be analyzed into symmetric and asymmetric components. It is shown that the asymmetric component depends on complex attributes of form. Mechanisms that generate this component must possess nonlinear interactions among multiple areas of the visual pattern. These interactions are likely to be more complex than rectification following spatial summation. It is concluded that the asymmetric component reflects intracortical, rather than precortical, processsing.

Original languageEnglish
Pages (from-to)1811-1827
Number of pages17
JournalVision Research
Issue number12
StatePublished - 1985
Externally publishedYes


  • Feature analysis
  • Human
  • Parallel visual processing
  • Systems analysis
  • Visual evoked potentials


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