All talk? Challenging the use of left-temporal EEG alpha oscillations as valid measures of verbal processing and conscious motor control
Parr, Johnny V.V. and Gallicchio, Germano and Harrison, Neil R. and Johnen, Ann-Kathrin and Wood, Greg (2020) All talk? Challenging the use of left-temporal EEG alpha oscillations as valid measures of verbal processing and conscious motor control. Biological Psychology, 155. p. 107943. ISSN 0301-0511
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Abstract
This study tested the validity of EEG left-temporal alpha power and upper-alpha T7-Fz connectivity as indices of verbal activity and conscious motor control. Participants (n = 20) reached for, and transported, a jar under three conditions: a control condition and two self-talk conditions aimed at eliciting either task-unrelated verbal processing or task-related conscious control, while EEG and hand kinematics were recorded. Compared to the control condition, both self-talk conditions increased self-reported verbal processing, but only the task-related self-talk condition increased left-temporal activity (i.e., alpha power decreased). However, as cortical activity increased across the entire scalp topography, conscious control likely elicits a multitude of processes that may not be explained by left-temporal activity or verbal processing alone, but by a widespread decrease in neural efficiency. No significant effects for T7-Fz connectivity were detected. Results suggest that left-temporal EEG alpha oscillations are unlikely to uniquely reflect verbal processing during conscious motor control.
| Item Type: | Article | ||||||
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| Additional Information: | This paper was accepted for publication in the journal Biological Psychology and the definitive published version is available at https://doi.org/10.1016/j.biopsycho.2020.107943 | ||||||
| Identification Number: | https://doi.org/10.1016/j.biopsycho.2020.107943 | ||||||
| Dates: |
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| Uncontrolled Keywords: | Conscious motor processingReinvestmentVerbal-analyticalT7-FzNeural efficiency | ||||||
| Subjects: | CAH04 - psychology > CAH04-01 - psychology > CAH04-01-01 - psychology (non-specific) | ||||||
| Divisions: | Faculty of Business, Law and Social Sciences > School of Social Sciences > Dept. Psychology | ||||||
| Depositing User: | Ann-Kathrin Johnen | ||||||
| Date Deposited: | 05 Oct 2022 15:18 | ||||||
| Last Modified: | 05 Oct 2022 15:18 | ||||||
| URI: | https://www.open-access.bcu.ac.uk/id/eprint/13643 |
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