- Poster presentation
- Open Access
A computational study of visual working memory capacity in the presence of saliency effects
© Dempere-Marco et al; licensee BioMed Central Ltd. 2011
- Published: 18 July 2011
- Lateral Inhibition
- Work Memory Capacity
- Delay Period
- Firing Activity
- Recurrent Network
A severe limitation in visual working memory capacity arises from the constraints that lateral inhibition imposes to the mnemonic activity during the delay period. However, it is also worth noting that a further limitation to working memory capacity derives from the need that the neural assemblies which have received stimulation reach a sufficiently high level of excitation. In particular, in the presence of visual saliency, the neural assemblies that receive stimulation but are not selective to the salient stimulus are less likely to achieve the elevated firing rates required to be subsequently held in memory.
- Cowan N: The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behav Brain Sci. 2000, 24: 87-114. 10.1017/S0140525X01003922.View ArticleGoogle Scholar
- Edin F, Klingberg T, Johansson P, McNab F, Tegnér J, Compte A: Mechanism for top-down control of working memory capacity. Proc Natl Acad Sci. 2009, 106 (16): 6802-6807. 10.1073/pnas.0901894106.PubMed CentralView ArticlePubMedGoogle Scholar
- Brunel N, Wang XJ: Effects of neuromodulation in a cortical network of object working memory dominated by recurrent inhibition. J Comput Neurosci. 2001, 11: 63-85. 10.1023/A:1011204814320.View ArticlePubMedGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.