A direct neural measure of variable precision representations in visual working memory
Christian Merkel, Mandy V. Bartsch, Mircea Ariel Schoenfeld, Anne‐Katrin Vellage, Nadia Müller, Jens‐Max Hopf
Abstract
The present work demonstrates for the first time that the contralateral delay activity (CDA), an online electrophysiological measure of the number of representations maintained in memory, is also a reliable measure of the precision of memory representations. Furthermore, we show that the CDA fluctuates independently for individual items held in memory, thereby providing unambiguous direct neurophysiological support for independently fluctuating memory representations.
Topics & Concepts
RecallEncoding (memory)Working memoryOrientation (vector space)Computer scienceTask (project management)PsychologyMeasure (data warehouse)NeurophysiologyRepresentation (politics)Cognitive psychologyArtificial intelligenceCognitionNeuroscienceMathematicsData miningManagementLawEconomicsPoliticsGeometryPolitical scienceNeural and Behavioral Psychology StudiesEEG and Brain-Computer InterfacesNeural dynamics and brain function