Comprehensive Summary
This study by Fakorede et al. aimed to determine if maintaining a bipedal stance requires more attentional resource allocation than sitting during a cognitive task. To test this, researchers had 126 adults complete an auditory task in both standing and sitting positions. The subjects’ neural activity was recorded using electroencephalography (EEG) with mobile brain-body imaging. Results of this imaging indicated that there was a lower P3 ERP amplitude during standing, which indicates increased cognitive workload. This supports the theory that the postural control required for standing reallocates attentional resources away from any cognitive task that is being performed at the same time. More specifically, only the P3b standing amplitude was lowered compared to the sitting amplitude while the P3a amplitude was the same across both conditions. The P3b component is linked to conscious cognitive processes while the P3a component is associated with the non-conscious response to new stimuli. This shows that postural control specifically impacts higher-order cognitive processes rather than automated ones. In conclusion, standing requires attentional resource allocation that impacts the amount of energy allocated towards cognitive processes.
Outcomes and Implications
This study provides evidence that standing allocates attentional resources away from higher-order cognitive tasks and towards postural control. This research can be relevant towards various patients, such as individuals with musculoskeletal disorders that have difficulty standing, or elderly individuals that have balance issues. By studying the impact of postural control on attentional resource allocation in these groups, medical professionals can better understand their conditions and use this information to personalize therapeutic plans. Additionally, a significant portion of the aging population are more likely to develop neurological disorders that affect cognitive processing, such as dementia or Alzheimer’s disease. Potential treatments could take advantage of the findings in these studies to help bolster the effectiveness of cognitive processes and train the brain.