Reduced Target Facilitation and Increased Distractor Suppression During Mind Wandering.
Michael Geden1, Ana-Maria Staicu2, Jing Feng1
11 Department of Psychology, North Carolina State University, Raleigh, NC, USA.
Experimental Psychology
|January 15, 2019
Summary
Mind wandering does not globally suppress external stimuli. Instead, attention selectively modulates processing, showing distractor suppression and target facilitation during internal thought.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Attention Research
Background:
- The perceptual decoupling hypothesis posits that mind wandering detaches attention from external stimuli, reducing sensory processing.
- Two proposed mechanisms include global suppression of all external stimuli or selective modulation (reduced target facilitation, increased distractor suppression).
Purpose of the Study:
- To investigate the specific mechanisms underlying perceptual decoupling during mind wandering.
- To differentiate between global suppression and selective attention modulation accounts.
Main Methods:
- An attentional capture task was employed to assess distractor suppression and target facilitation effects.
- Mind wandering was induced, and its impact on processing external stimuli was measured across different trial types.
Main Results:
- No significant cost of mind wandering was observed on target-absent trials.
- Significant distractor suppression and target facilitation effects were found during mind wandering on target-present trials.
Conclusions:
- Findings challenge the global suppression model of perceptual decoupling.
- Results support a more selective attentional modulation mechanism during mind wandering, aligning with top-down control evidence.
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