Set and temporal integration

Ira H. Bernstein, And Erwin M Segal

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


An experiment was conducted to explore the temporal structure of set formation in a complex reaction time (RT) task. On each trial an instruction [I-event] was given telling Ss whether identity of color or form on a separately presented alternative display (A-event) was the dimension relevant on that trial. The A-event consisted of a pattern of four colored forms. The two forms on one side were matched for color and on the other side for form. S's task was to depress one of two keys. The correct key was homolateral to the matched relevant dimension. The basic independent variable was the time interval separating the I- and A-events (ISI). At short ISIs, RT wasa linear function oflSI with slope equal to -0.5. RT was independent of the order in which the events occurred at short ISIs, although at longer ISIs (3 sec) RT was longer when the A-event followed the I-event. Also, RT was shorter at short ISIs when color was the relevant dimension rather than form. although this difference disappearedat longer ISIs. The results were discussed in relation to information processing models and previous research dealing with partialadvance information.

Original languageEnglish (US)
Pages (from-to)233-236
Number of pages4
JournalPerception & Psychophysics
Issue number4
StatePublished - Jul 1968

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Sensory Systems
  • General Psychology


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