Does cross‐frequency phase coupling of oscillatory brain activity contribute to a better understanding of visual working memory?
| Autor: | Paul Sauseng, Charline Peylo, Carola Romberg‐Taylor, Elisabeth V. C. Friedrich, Anna Lena Biel |
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| Rok vydání: | 2018 |
| Předmět: |
Cerebral Cortex
Working memory Mechanism (biology) Brain activity and meditation Electroencephalography Phase Synchronization 05 social sciences 050109 social psychology Brain waves 050105 experimental psychology Phase coupling Memory Short-Term Coupling (computer programming) Cognitive resource theory Capacity limit Gamma Rhythm Humans 0501 psychology and cognitive sciences Theta Rhythm Psychology Neuroscience General Psychology |
| Zdroj: | British Journal of Psychology. 110:245-255 |
| ISSN: | 2044-8295 0007-1269 |
| DOI: | 10.1111/bjop.12340 |
| Popis: | Nesting of fast rhythmical brain activity (gamma) into slower brain waves (theta) has frequently been suggested as a core mechanism of multi-item working memory (WM) retention. It provides a better understanding of WM capacity limitations, and, as we discuss in this review article, it can lead to applications for modulating memory capacity. However, could cross-frequency coupling of brain oscillations also constructively contribute to a better understanding of the neuronal signatures of working memory compatible with theoretical approaches that assume flexible capacity limits? Could a theta-gamma code also be considered as a neural mechanism of flexible sharing of cognitive resources between memory representations in multi-item WM? Here, we propose potential variants of theta-gamma coupling that could explain WM retention beyond a fixed memory capacity limit of a few visual items. Moreover, we suggest how to empirically test these predictions in the future. |
| Databáze: | OpenAIRE |
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