dc.contributor.author | Sauseng, Paul | |
dc.contributor.author | Klimesch, Wolfgang | |
dc.contributor.author | Heise, Kirstin F. | |
dc.contributor.author | Gruber, Walter R. | |
dc.contributor.author | Holz, Elisa | |
dc.contributor.author | Karim, Ahmed A. | |
dc.contributor.author | Glennon, Mark | |
dc.contributor.author | Gerloff, Christian | |
dc.contributor.author | Birbaumer, Niels | |
dc.contributor.author | Hummel, Friedhelm C. | |
dc.date.accessioned | 2018-09-20T16:23:55Z | |
dc.date.available | 2018-09-20T16:23:55Z | |
dc.date.issued | 2009-11-01 | |
dc.identifier.citation | Sauseng, Paul; Klimesch, Wolfgang; Heise, Kirstin F. Gruber, Walter R.; Holz, Elisa; Karim, Ahmed A.; Glennon, Mark; Gerloff, Christian; Birbaumer, Niels; Hummel, Friedhelm C. (2009). Brain oscillatory substrates of visual short-term memory capacity. Current Biology 19 (21), 1846-1852 | |
dc.identifier.issn | 0960-9822 | |
dc.identifier.uri | http://hdl.handle.net/10379/13801 | |
dc.description.abstract | The amount of information that can be stored in visual short-term memory is strictly limited to about four items [1]. Therefore, memory capacity relies not only on the successful retention of relevant information but also on efficient suppression of distracting information, visual attention, and executive functions [2-5]. However, completely separable neural signatures for these memory capacity-limiting factors remain to be identified. Because of its functional diversity [6-9], oscillatory brain activity may off er a utile solution. In the present study, we show that capacity-determining mechanisms, namely retention of relevant information and suppression of distracting information, are based on neural substrates independent of each other: the successful maintenance of relevant material in short-term memory is associated with cross-frequency phase synchronization between theta (rhythmical neural activity around 5 Hz) and gamma (>50 Hz) oscillations at posterior parietal recording sites. On the other hand, electroencephalographic alpha activity (around 10 Hz) predicts memory capacity based on efficient suppression of irrelevant information in short-term memory. Moreover, repetitive transcranial magnetic stimulation at alpha frequency can modulate short-term memory capacity by influencing the ability to suppress distracting information. Taken together, the current study provides evidence for a double dissociation of brain oscillatory correlates of visual short-term memory capacity. | |
dc.publisher | Elsevier BV | |
dc.relation.ispartof | Current Biology | |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Ireland | |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ | |
dc.subject | transcranial magnetic stimulation | |
dc.subject | eeg alpha-activity | |
dc.subject | working-memory | |
dc.subject | individual-differences | |
dc.subject | phase synchronization | |
dc.subject | theta-oscillations | |
dc.subject | neuronal oscillations | |
dc.subject | spatial attention | |
dc.subject | neural measures | |
dc.subject | cortex | |
dc.title | Brain oscillatory substrates of visual short-term memory capacity | |
dc.type | Article | |
dc.identifier.doi | 10.1016/j.cub.2009.08.062 | |
dc.local.publishedsource | https://doi.org/10.1016/j.cub.2009.08.062 | |
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