RT Journal Article
T1 Parietal Alpha Oscillatory Peak Frequency Mediates the Effect of Practice on Visuospatial Working Memory Performance
A1 Bertaccini, Riccardo
A1 Ellena, Giulia
A1 Macedo Pascual, Joaquin
A1 Carusi, Fabrizio
A1 Trajkovic, Jelena
A1 Poch, Claudia
A1 Romei, Vincenzo
AB Visuospatial working memory (WM) requires the activity of a spread network, including right parietal regions, to sustain storage capacity, attentional deployment, and active manipulation of information. Notably, while the electrophysiological correlates of such regions have been explored using many different indices, evidence for a functional involvement of the individual frequency peaks in the alpha (IAF) and theta bands (ITF) is still poor despite their relevance in many influential theories regarding WM. Interestingly, there is also a parallel lack of literature about the effect of short-term practice on WM performance. Here, we aim to clarify whether the simple repetition of a change-detection task might be beneficial to WM performance and to which degree these effects could be predicted by IAF and ITF. For this purpose, 25 healthy participants performed a change-detection task at baseline and in a retest session, while IAF and ITF were also measured. Results show that task repetition improves WM performance. In addition, right parietal IAF, but not ITF, accounts for performance gain such that faster IAF predicts higher performance gain. Our findings align with recent literature suggesting that the faster the posterior alpha, the finer the perceptual sampling rate, and the higher the WM performance gain.
PB MDPI
SN 2411-5150
YR 2022
FD 2022-05-31
LK https://hdl.handle.net/20.500.14352/71758
UL https://hdl.handle.net/20.500.14352/71758
LA eng
NO Ministerio de Ciencia e Innovación (MICINN)
DS Docta Complutense
RD 11 abr 2025