EEG and behavioral correlates of attentional processing while walking and navigating naturalistic environments

Area of Science:

• Cognitive Neuroscience
• Psychophysiology
• Human Factors

Background:

• Attentional control is vital for adaptive behavior.
• Laboratory studies on electrophysiological correlates of attention are common.
• Understanding attention in ecologically valid, dynamic environments remains limited.

Purpose of the Study:

• To investigate attentional processing using electroencephalography (EEG) in real-world settings.
• To examine how cognitive, motor, and environmental demands affect attention.
• To compare attentional responses in lab vs. dynamic, naturalistic contexts.

Main Methods:

• Utilized a 'real-world' EEG design with 44 participants.
• Implemented an auditory oddball task across three conditions: lab, sports field, and university campus wayfinding.
• Varied cognitive load by instructing participants to either count or ignore oddball stimuli.

Main Results:

• Behavioral performance was comparable in lab and field settings but declined on campus.
• Event-related potential components, mismatch negativity and P3, showed significant differences between lab and real-world conditions.
• Environmental factors demonstrably impact attentional processing during combined motor and cognitive tasks.

Conclusions:

• Real-world environmental complexity affects attentional processing and associated neural mechanisms.
• Dynamic and unpredictable naturalistic contexts are crucial for a comprehensive understanding of attention.
• Findings underscore the importance of ecologically valid research designs in cognitive neuroscience.