TY - JOUR T1 - Working memory implements distinct maintenance mechanisms depending on task goals JF - bioRxiv DO - 10.1101/162537 SP - 162537 AU - Johannes J. Fahrenfort AU - Jonathan van Leeuwen AU - Joshua J. Foster AU - Edward Awh AU - Christian N. L. Olivers Y1 - 2017/01/01 UR - http://biorxiv.org/content/early/2017/07/12/162537.abstract N2 - To investigate how working memory maintenance mechanisms change as a function of task goals, participants either had to reproduce, or identify, an oriented bar from memory. Although the memorandum was identical for both tasks, they invoked dissociable memory traces, as reflected in induced alpha-band power and raw EEG signals. We propose that these signals reflect oscillatory and elevated firing mechanisms that respectively support location-based and object-based maintenance. ER -