A microcomputer-based visual stimulator

Norman Milkman, Robert Shapley, Gary Schick

Research output: Contribution to journalArticlepeer-review


A microcomputer-based instrument is described that provides visual stimuli for a CRT display and collects and processes response data. The system produces a variety of visual patterns to facilitate the study of the properties of visual neurons of several different animals. The visual patterns include drifting sinusoidal or bar gratings, contrast reversal gratings, and diffuse light. By means of a keypad, the experimenter can select the visual pattern and its parameters, such as depth of modulation, spatial frequency, initial spatial phase, temporal frequency, and rotation angle.

Original languageEnglish (US)
Pages (from-to)539-545
Number of pages7
JournalBehavior Research Methods & Instrumentation
Issue number4
StatePublished - Jul 1978

ASJC Scopus subject areas

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


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