Selective stopping in task switching: The role of response selection and response execution

Area of Science:

• Cognitive psychology
• Neuroscience

Background:

• Recent research emphasizes response selection's role in cued task switching.
• The necessity of response execution for switch costs remains debated.

Purpose of the Study:

• To directly test if switch costs arise without response selection.
• To differentiate the roles of response selection and execution in task switching.

Main Methods:

• Combined cued task switching with selective stopping paradigms in two experiments.
• Manipulated the need for response selection and execution.

Main Results:

• Switch costs were observed when response selection occurred, irrespective of execution.
• No switch costs were found when responses were inhibited without selection.

Conclusions:

• Response selection, not execution, is critical for generating switch costs.
• Provides direct evidence for the distinct role of response selection in cued task switching.