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Competing responses and the processing of irrelevant information
1University of Georgia, 30601, Athens, Georgia.
Memory & Cognition
|November 12, 2013
Summary
Irrelevant information can hinder identification and discrimination tasks by increasing processing demands. Contradictory findings depend on the difficulty of distinguishing relevant from irrelevant stimuli.
Area of Science:
- Cognitive Psychology
- Information Processing
Background:
- Studies conflict on whether irrelevant information impairs task performance.
- Previous research shows inconsistent effects of extraneous data on cognitive tasks.
Purpose of the Study:
- To reconcile conflicting findings regarding irrelevant information's impact.
- To investigate the role of task difficulty in moderating these effects.
Main Methods:
- Analysis of existing studies on identification and discrimination tasks.
- Examination of conditions where irrelevant stimuli affect performance.
Main Results:
- Contradictory results are linked to the difficulty of discriminating relevant from irrelevant stimuli.
- Irrelevant information amplifies competing responses by increasing processing load.
Conclusions:
- The impact of irrelevant information is contingent on task complexity and stimulus discriminability.
- Understanding these factors is key to predicting performance decrements.
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