An electronic visual stimulator

Robert Shapley, Michelangelo Rossetto

Research output: Contribution to journalArticlepeer-review


A group of circuits is described that produce various patterns on an oscilloscope screen that are useful in studying vision. These patterns are: a flashing bar, a drifting bar, a flashing grating, and a drifting grating. The circuits have controls for: contrast, velocity, width, position, and orientation with respect to the vertical. This article describes the principles of design and use of these circuit modules as a precise electronic visual stimulator.

Original languageEnglish (US)
Pages (from-to)15-20
Number of pages6
JournalBehavior Research Methods & Instrumentation
Issue number1
StatePublished - Jan 1976

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)
  • Psychology (miscellaneous)
  • General Psychology


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