Target-Response Associations Can Produce Response-Congruency Effects Without Task-Switching Costs

Area of Science:

• Cognitive Psychology
• Human Experimental Psychology

Background:

• Task-switching experiments reveal response-congruency effects with bivalent stimuli.
• Conflicts in response selection lead to slower responses and more errors for incongruent targets.

Purpose of the Study:

• To investigate response-congruency effects when task rules are implicit.
• To determine if passive associations form without explicit rule application.

Main Methods:

• Two experiments using bivalent targets with assigned task-irrelevant features.
• Participants performed tasks with and without explicit instruction on task rules.

Main Results:

• Explicit task rules led to significant task-switching costs and response-congruency effects.
• Without explicit rules, participants showed response-congruency effects but no switch costs.

Conclusions:

• Response-congruency effects can emerge passively, independent of explicit task rule application.
• Associations between stimulus features and responses form even when task-irrelevant information is processed.