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J. Maldjian, P. Laurienti, R. Kraft, J. Burdette (2003)
An automated method for neuroanatomic and cytoarchitectonic atlas-based interrogation of fMRI data setsNeuroImage, 19
Weiwei Zhang, S. Luck (2008)
Discrete fixed-resolution representations in visual working memoryNature, 453
E. Vogel, M. Machizawa (2004)
Neural activity predicts individual differences in visual working memory capacityNature, 428
D. Nee, J. Jonides (2011)
Dissociable contributions of prefrontal cortex and the hippocampus to short-term memory: Evidence for a 3-state model of memoryNeuroImage, 54
R. Cabeza, F. Dolcos, R. Graham, L. Nyberg (2002)
Similarities and Differences in the Neural Correlates of Episodic Memory Retrieval and Working MemoryNeuroImage, 16
N. Cowan (2001)
The magical number 4 in short-term memory: A reconsideration of mental storage capacityBehavioral and Brain Sciences, 24
K. Henke (2010)
A model for memory systems based on processing modes rather than consciousnessNature Reviews Neuroscience, 11
S. Luck, E. Vogel (1997)
The capacity of visual working memory for features and conjunctionsNature, 390
Annette Jeneson, L. Squire (2011)
Working memory, long-term memory, and medial temporal lobe function.Learning & memory, 19 1
Ilke Öztekin, L. Davachi, Brian McElree (2010)
Are Representations in Working Memory Distinct From Representations in Long-Term Memory?Psychological Science, 21
Karl Friston, P. Fletcher, O. Josephs, A. Holmes, R. Turner (1998)
Event-Related fMRI: Characterizing Differential ResponsesNeuroImage, 7
N. Axmacher, F. Mormann, G. Fernández, Michael Cohen, C. Elger, J. Fell (2007)
Sustained Neural Activity Patterns during Working Memory in the Human Medial Temporal LobeThe Journal of Neuroscience, 27
J. Fell, T. Dietl, T. Grunwald, M. Kurthen, P. Klaver, P. Trautner, C. Schaller, C. Elger, Guilln Fernndez (2004)
Neural Bases of Cognitive ERPs: More than Phase ResetJournal of Cognitive Neuroscience, 16
H. Olsson, L. Poom (2005)
Visual memory needs categories.Proceedings of the National Academy of Sciences of the United States of America, 102 24
This PDF file includes: Materials and Methods Figs. S1 to S3 References
J. Jonides, Richard Lewis, D. Nee, C. Lustig, M. Berman, K. Moore (2008)
The mind and brain of short-term memory.Annual review of psychology, 59
D. Nee, J. Jonides (2013)
Neural evidence for a 3-state model of visual short-term memoryNeuroImage, 74
Brian McElree (2006)
Accessing Recent EventsPsychology of Learning and Motivation, 46
C. Stern, Seth Sherman, B. Kirchhoff, Michael Hasselmo (2001)
Medial temporal and prefrontal contributions to working memory tasks with novel and familiar stimuliHippocampus, 11
Max Toepper, H. Markowitsch, H. Gebhardt, T. Beblo, Christine Thomas, B. Gallhofer, M. Driessen, G. Sammer (2010)
Hippocampal involvement in working memory encoding of changing locations: An fMRI studyBrain Research, 1354
I. Olson, Katie Page, K. Moore, A. Chatterjee, M. Verfaellie (2006)
Working Memory for Conjunctions Relies on the Medial Temporal LobeThe Journal of Neuroscience, 26
C. Finke, M. Braun, F. Ostendorf, T. Lehmann, K. Hoffmann, U. Kopp, C. Ploner (2008)
The human hippocampal formation mediates short-term memory of colour–location associationsNeuropsychologia, 46
M. Brett, J. Anton, R. Valabrègue, J Poline (2010)
Region of interest analysis using an SPM toolbox
P. Klaver, H. Smid, H. Heinze (1999)
Representations in human visual short-term memory: an event-related brain potential studyNeuroscience Letters, 268
S. Diamantopoulou, L. Poom, P. Klaver, D. Talsma (2011)
Visual working memory capacity and stimulus categories: a behavioral and electrophysiological investigationExperimental Brain Research, 209
Yaoda Xu, M. Chun (2006)
Dissociable neural mechanisms supporting visual short-term memory for objectsNature, 440
Maike Schmidt, Suk-Won Jin, A. Gray, D. Beis, Thinh Pham, G. Frantz, Susan Palmieri, K. Hillan, D. Stainier, F. Sauvage, Weilan Ye (2004)
Capacity limit of visual short-term memory in human posterior parietal cortexNature, 428
L. Squire, B. Knowlton, G. Musen (1993)
The structure and organization of memory.Annual review of psychology, 44
W. Scoville, B. Milner (1957)
LOSS OF RECENT MEMORY AFTER BILATERAL HIPPOCAMPAL LESIONSJournal of Neurology, Neurosurgery & Psychiatry, 20
C. Ranganath, M. D’Esposito (2001)
Medial Temporal Lobe Activity Associated with Active Maintenance of Novel InformationNeuron, 31
C. Bledowski, B. Rahm, J. Rowe (2009)
What “Works” in Working Memory? Separate Systems for Selection and Updating of Critical InformationThe Journal of Neuroscience, 29
Alfonso Nieto-Castanon, Satrajit Ghosh, J. Tourville, F. Guenther (2003)
Region of interest based analysis of functional imaging dataNeuroImage, 19
Pashler Becker, Bruce Funahashi (2005)
Posterior parietal cortex activity predicts individual differences in visual short-term memory capacityCognitive, Affective, & Behavioral Neuroscience, 5
K. Schon, M. Hasselmo, M. LoPresti, Marisa Tricarico, C. Stern (2004)
Persistence of Parahippocampal Representation in the Absence of Stimulus Input Enhances Long-Term Encoding: A Functional Magnetic Resonance Imaging Study of Subsequent Memory after a Delayed Match-to-Sample TaskThe Journal of Neuroscience, 24
K. Mitchell, Marcia Johnson, C. Raye, M. D’Esposito (2000)
fMRI evidence of age-related hippocampal dysfunction in feature binding in working memory.Brain research. Cognitive brain research, 10 1-2
N. Axmacher, Melanie Henseler, O. Jensen, I. Weinreich, C. Elger, J. Fell (2010)
Cross-frequency coupling supports multi-item working memory in the human hippocampusProceedings of the National Academy of Sciences, 107
D. Nee, J. Jonides (2008)
Neural correlates of access to short-term memoryProceedings of the National Academy of Sciences, 105
Ilke Öztekin, Brian McElree, B. Staresina, L. Davachi (2009)
Working Memory Retrieval: Contributions of the Left Prefrontal Cortex, the Left Posterior Parietal Cortex, and the HippocampusJournal of Cognitive Neuroscience, 21
K. Oberauer (2002)
Access to information in working memory: exploring the focus of attention.Journal of experimental psychology. Learning, memory, and cognition, 28 3
Annette Jeneson, J. Wixted, R. Hopkins, L. Squire (2012)
Visual Working Memory Capacity and the Medial Temporal LobeThe Journal of Neuroscience, 32
Deborah Hannula, C. Ranganath (2008)
Medial Temporal Lobe Activity Predicts Successful Relational Memory BindingThe Journal of Neuroscience, 28
C. Piekema, R. Kessels, R. Mars, K. Petersson, G. Fernández (2006)
The right hippocampus participates in short-term memory maintenance of object–location associationsNeuroImage, 33
ABSTRACT Although the hippocampus had been traditionally thought to be exclusively involved in long‐term memory, recent studies raised controversial explanations why hippocampal activity emerged during short‐term memory tasks. For example, it has been argued that long‐term memory processes might contribute to performance within a short‐term memory paradigm when memory capacity has been exceeded. It is still unclear, though, whether neural activity in the hippocampus predicts visual short‐term memory (VSTM) performance. To investigate this question, we measured BOLD activity in 21 healthy adults (age range 19–27 yr, nine males) while they performed a match‐to‐sample task requiring processing of object‐location associations (delay period = 900 ms; set size conditions 1, 2, 4, and 6). Based on individual memory capacity (estimated by Cowan's K‐formula), two performance groups were formed (high and low performers). Within whole brain analyses, we found a robust main effect of “set size” in the posterior parietal cortex (PPC). In line with a “set size × group” interaction in the hippocampus, a subsequent Finite Impulse Response (FIR) analysis revealed divergent hippocampal activation patterns between performance groups: Low performers (mean capacity = 3.63) elicited increased neural activity at set size two, followed by a drop in activity at set sizes four and six, whereas high performers (mean capacity = 5.19) showed an incremental activity increase with larger set size (maximal activation at set size six). Our data demonstrated that performance‐related neural activity in the hippocampus emerged below capacity limit. In conclusion, we suggest that hippocampal activity reflected successful processing of object‐location associations in VSTM. Neural activity in the PPC might have been involved in attentional updating. © 2013 Wiley Periodicals, Inc.
Hippocampus – Wiley
Published: Jul 1, 2013
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