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The balance N1 and the ERN correlate in amplitude across individuals in small samples of younger and older adults

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Abstract

The error-related negativity (ERN) is a neural correlate of error monitoring often used to investigate individual differences in developmental, mental health, and adaptive contexts. However, limited experimental control over errors presents several confounds to its measurement. An experimentally controlled disturbance to standing balance evokes the balance N1, which we previously suggested may share underlying mechanisms with the ERN based on a number of shared features and factors. We now measure whether the balance N1 and ERN are correlated across individuals within two small groups (N = 21 young adults and N = 20 older adults). ERNs were measured in arrow flanker tasks using hand and foot response modalities (ERN-hand and ERN-foot). The balance N1 was evoked by sudden slip-like movements of the floor while standing. The ERNs and the balance N1 showed good and excellent internal consistency, respectively, and were correlated in amplitude in both groups. One principal component strongly loaded on all three evoked potentials, suggesting that the majority of individual differences are shared across the three ERPs. However, there remains a significant component of variance shared between the ERN-hand and ERN-foot beyond what they share with the balance N1. It is unclear whether this component of variance is specific to the arrow flanker task, or something fundamentally related to error processing that is not evoked by a sudden balance disturbance. If the balance N1 were to reflect error processing mechanisms indexed by the ERN, balance paradigms offer several advantages in terms of experimental control over errors.

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Data availability

MATLAB datasets containing all of the analyzed subject-averaged EEG waveforms are available at https://github.com/AidenPayne/ERN-n1-2023.

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Acknowledgements

Study data were collected and managed using a Research Electronic Data Capture (REDCap) database hosted at Emory University (Harris et al. 2009; Harris et al. 2019). This work was initially made available as a preprint (Payne et al. 2023).

Funding

This work was supported by the National Institutes of Health (F32 MH129076, P50 NS098685, R21 HD075612, R01 HD46922, UL1 TR000424), National Science Foundation (EFRI 1137229), the Fulton County Elder Health Scholarship (2015 -2017), and the Zebrowitz Award (2018).

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Contributions

LHT provided funding; AMP, LHT, and GH were involved in the conceptualization, methodology, and interpretation of the findings; AMP collected and analyzed the data, drafted the manuscript, and prepared figures; LHT and GH provided feedback throughout data analyses and revision of the manuscript and figures.

Corresponding author

Correspondence to Aiden M. Payne.

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Ethics statement

The protocol was approved by the Institutional Review Board of Emory University, and all participants were informed of the study procedures and provided written consent before participation.

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The authors declare that they have no conflict of interest.

Additional information

Communicated by Bill J Yates.

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Payne, A.M., Ting, L.H. & Hajcak, G. The balance N1 and the ERN correlate in amplitude across individuals in small samples of younger and older adults. Exp Brain Res 241, 2419–2431 (2023). https://doi.org/10.1007/s00221-023-06692-9

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  • DOI: https://doi.org/10.1007/s00221-023-06692-9

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