Reference code: | PT/FB/BL-2018-306.06 |
Location: | BF-GMS
|
Title:
| A role for preparatory midfrontal theta in autism as revealed by a high executive load brain–computer interface reverse spelling task
|
Publication year: | 2025
|
URL:
| https://doi.org/10.1038/s41598-025-00670-7
|
Abstract/Results: | ABSTRACT:
Midfrontal theta oscillations have been linked to executive function, yet their role in autism - where this function is often compromised - remains unclear. We hypothesized that preparatory increases in theta power may help normalize performance in autism. To test this, we used a challenging interactive executive function task designed to impose a high working memory load and require constant error monitoring. An electroencephalogram (EEG)-based brain–computer interface (BCI) was used to maximize cognitive load and engagement. Neural activity from autistic and non-autistic adults was compared while participants were asked to mentally reverse pseudowords (engaging working memory) and write them using the BCI, which provided real-time performance feedback (maximizing error monitoring). The study focused on theta power modulation during the preparatory (pre-response) and feedback (post-response) periods but also explored the role of posterior alpha oscillations. Results showed similar task performance between groups, but distinct recruitment of brain resources, particularly during the preparatory period. The finding of an increased preparatory theta in autism favors the hypothesis of compensatory recruitment of cognitive control and attentional mechanisms to achieve accurate results.
|
Accessibility: | Document exists in file
|
Language:
| eng
|
Author:
| Dias, C.
|
Secondary author(s):
| Sousa, T., Cruz, A., Costa, D., Mouga, S., Castelhano, J., Pires, G., Castelo-Branco, M.
|
Document type:
| Article
|
Number of reproductions:
| 1
|
Reference:
| Dias, C., Sousa, T., Cruz, A., Costa, D., Mouga, S., Castelhano, J., Pires, G., & Castelo-Branco, M. (2025). A role for preparatory midfrontal theta in autism as revealed by a high executive load brain–computer interface reverse spelling task. Scientific Reports, 15, 16671. https://doi.org/10.1038/s41598-025-00670-7
|
2-year Impact Factor: | 3.8|2023
|
Impact factor notes: | Impact factor not available yet for 2025
|
Times cited: | 0|2025-06-12
|
Indexed document: | Yes
|
Quartile: | Q1
|
Keywords: | Autism / Executive function / Midfrontal theta / Error monitoring / EEG-based BCI
|
A role for preparatory midfrontal theta in autism as revealed by a high executive load brain–computer interface reverse spelling task |