Evaluating High and Low Heart Rate Variability Response and Neurocognitive Performance in Workers: An Exploratory...

Area of Science:

• Psychophysiology
• Cognitive Neuroscience
• Occupational Health

Background:

• Heart rate variability (HRV) is increasingly recognized for its potential predictive role in cognitive performance.
• Understanding the relationship between HRV and neurocognitive function across different occupational groups is essential for workplace well-being and productivity.
• Previous research has not fully explored how distinct HRV levels influence specific cognitive domains in blue-collar versus white-collar workers.

Purpose of the Study:

• To investigate the neurocognitive performance differences between workers with high and low heart rate variability (HRV).
• To examine the relationship between specific HRV parameters (RMSSD, HF) and cognitive measures in different occupational groups.
• To determine the impact of task-dependent HRV on cognitive outcomes.

Main Methods:

• Assessed 48 white-collar and 53 blue-collar workers using electrocardiography to record 10-minute baseline and active HRV.
• Categorized participants into high- and low-HRV groups based on median splits of HRV data.
• Administered the Cambridge Neuropsychological Test Automated Battery (CANTAB) to evaluate spatial working memory, attention-switching, rapid visual processing, and spatial span.

Main Results:

• Higher HRV, specifically RMSSD and HF, was significantly associated with enhanced neurocognitive performance across various tasks.
• Distinct correlations between HRV and cognitive measures were observed between blue-collar and white-collar worker groups.
• In some instances, the relationship between HRV and cognitive variables showed an inverse pattern between the two occupational groups.

Conclusions:

• Elevated HRV is linked to superior cognitive functioning, highlighting its potential as a biomarker for cognitive capacity.
• Occupational context significantly influences the HRV-cognitive performance relationship, indicating that a one-size-fits-all approach is inadequate.
• The study underscores the importance of considering task-dependent HRV parameters for a more nuanced understanding of psychophysiological influences on cognition in the workplace.