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The perception of identity in simultaneously presented complex visual displays.

W P Silverman¹

¹State University of New York, 14214, Buffalo, New York.

Memory & Cognition

|November 12, 2013

Summary

This study investigated visual matching tasks, finding that a two-stage information processing model best explains reaction times. Results suggest limited capacity in the "identity reporter" based on stimulus complexity, not just information bits.

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Area of Science:

Cognitive Psychology
Human Information Processing

Background:

Traditional models struggle to explain reaction times in visual matching tasks.
Bamber's (1969) two-stage model offers an alternative explanation for "same" and "different" judgments.

Purpose of the Study:

To examine information processing in visual matching tasks.
To test the validity of a two-stage model for reaction time data.
To investigate the capacity limits of Bamber's "identity reporter".

Main Methods:

Conducted two experiments using digit sequences of varying complexity as stimuli.
Analyzed reaction times for "same" and "different" judgments.

Main Results:

Experimental data support a two-stage information processing model.
Evidence suggests the "identity reporter" has limited capacity related to stimulus complexity.
Complexity is influenced by stimulus discriminability and information chunks, not just information bits (Miller, 1956).

Conclusions:

A two-stage model effectively accounts for visual matching task reaction times.
Stimulus complexity, defined by discriminability and chunking, impacts cognitive processing capacity.