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Response mode modulates the congruency sequence effect in spatial conflict tasks: evidence from aimed-movement
1Department of Psychology, Korea University, 145 Anam-ro, Seongbuk-Gu, Seoul, 02841, Korea.
Psychological Research
|June 28, 2020
Summary
Response mode dictates control specificity in spatial conflict tasks, influencing the congruency sequence effect (CSE). This control operates specifically within the chosen response mode, impacting motor execution.
Area of Science:
- Cognitive Psychology
- Human Motor Control
- Attention and Performance
Background:
- The congruency sequence effect (CSE) is a cognitive phenomenon observed in tasks involving conflict between stimulus and response dimensions.
- Understanding the control mechanisms underlying CSE is crucial for explaining how individuals manage conflicting information, particularly in spatial tasks.
Purpose of the Study:
- To investigate how response mode influences the specificity of cognitive control in the context of the congruency sequence effect (CSE).
- To examine the role of spatial dimensions and response characteristics in modulating CSE.
- To explore the temporal dynamics of response inhibition at both initiation and movement stages.
Main Methods:
- Utilized horizontal and vertical Simon tasks with manipulated response modes and task-relevant stimulus dimensions.
- Employed aimed movements for responses to equalize the salience of spatial dimensions across conditions.
- Conducted distributional analyses and applied flanker-compatibility tasks to corroborate findings.
Main Results:
- CSE was significant only when tasks shared the same response mode, independent of the task-relevant stimulus dimension.
- Response mode-specific control was observed across different spatial conflict tasks, including flanker-compatibility tasks.
- CSE was more pronounced in movement times than in response initiation times, suggesting motor-level inhibition.
Conclusions:
- Response mode plays a critical role in determining the scope of cognitive control, reconfiguring representations of task-irrelevant spatial dimensions.
- The findings highlight a response mode-specific control mechanism that operates even when conflict is not directly tied to the response dimension.
- The enhanced manifestation of CSE in movement time provides novel insights into the motor-level inhibition of responses activated by irrelevant stimuli.
