Theta oscillations promote temporal sequence learning

Neurobiology of Learning and Memory
Jordan Crivelli-DeckerCharan Ranganath

Abstract

Many theoretical models suggest that neural oscillations play a role in learning or retrieval of temporal sequences, but the extent to which oscillations support sequence representation remains unclear. To address this question, we used scalp electroencephalography (EEG) to examine oscillatory activity over learning of different object sequences. Participants made semantic decisions on each object as they were presented in a continuous stream. For three "Consistent" sequences, the order of the objects was always fixed. Activity during Consistent sequences was compared to "Random" sequences that consisted of the same objects presented in a different order on each repetition. Over the course of learning, participants made faster semantic decisions to objects in Consistent, as compared to objects in Random sequences. Thus, participants were able to use sequence knowledge to predict upcoming items in Consistent sequences. EEG analyses revealed decreased oscillatory power in the theta (4-7 Hz) band at frontal sites following decisions about objects in Consistent sequences, as compared with objects in Random sequences. The theta power difference between Consistent and Random only emerged in the second half of the task, as participant...Continue Reading

Citations

Aug 21, 2018·Journal of Cognitive Neuroscience·Alex ClarkeLorraine K Tyler
Jun 28, 2020·Social Cognitive and Affective Neuroscience·Yafeng PanYi Hu
Sep 11, 2018·Cognitive Neuroscience·Brooke M RobertsCharan Ranganath
Jun 23, 2020·Brain Connectivity·Susan L BenearIngrid R Olson
Feb 17, 2021·Neuropsychologia·Josephine CruzatSalvador Soto-Faraco
Jun 17, 2020·Neurobiology of Learning and Memory·Kamin KimCharan Ranganath
Apr 17, 2021·Biological Psychiatry : Cognitive Neuroscience and Neuroimaging·Yicong ZhengJ Daniel Ragland

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