Stimulus-response compatibility effects in go-no-go tasks: a dimensional overlap account

Area of Science:

• Cognitive Psychology
• Human Motor Control
• Computational Neuroscience

Background:

• The dimensional overlap (DO) model proposes that stimulus-response compatibility effects arise from automatic response activation.
• These effects are predicted to manifest in go-no-go tasks, influencing response selection processes.

Purpose of the Study:

• To empirically test the prediction of stimulus-response compatibility effects in go-no-go tasks based on the DO model.
• To investigate how stimulus-response compatibility influences response times in a go-no-go paradigm.

Main Methods:

• Two experiments were conducted using a go-no-go task where participants executed a hand movement in response to a go stimulus.
• Stimulus-response compatibility was manipulated by varying the spatial attribute of the go stimuli relative to the required response.

Main Results:

• Response times were significantly shorter when the spatial attribute of the go stimulus corresponded to the response attribute.
• These compatibility effects were modulated by the similarity between go and no-go stimuli and the nature of the spatial attribute (location vs. meaning).

Conclusions:

• The findings confirm the hypothesis that stimulus-response compatibility effects occur in go-no-go tasks, aligning with the DO model.
• Results provide insights into the temporal dynamics of automatic and controlled response processes during decision-making.