The effect of a visual indicator on rate of visual search: Evidence for processing control (original) (raw)

Abstract

Search rates were estirnated from response latencies in a visual search task of the type used by Atkinson, Holmgren, and Juola (1969), in which a S searches a small set of letters to determine the presence or absence of a predesignated target. Half of the visual displays contained a marker above one of the letters. The marked letter was the only one that had to be checked to determine whether or not the display contained the target. The presence of a marker in a display significantly increased the estimated rate of search, but the data clearly indicated that Ss did not restrict processing to the marked item. Letters in the vicinity of the marker were also processed. These results were interpreted as showing that Ss are able to exercise some degree of control over the search process in this type of task.

Article PDF

Similar content being viewed by others

References

Download references

Author information

Authors and Affiliations

  1. University of Maryland, 20742, College Park, Maryland
    John E. Holmgren

Additional information

This work is based upon a portion of a doctoral dissertation submitted to Stanford University. The research was carried out under a NIMH Terminal Graduate Fellowship and was supported in part by NASA Grant NGR-05-020-244.

Rights and permissions

About this article

Cite this article

Holmgren, J.E. The effect of a visual indicator on rate of visual search: Evidence for processing control.Perception & Psychophysics 15, 544–550 (1974). https://doi.org/10.3758/BF03199300

Download citation

Keywords