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Stimulus-Specific Delay Activity in Human Primary Visual Cortex
Open accessAbstract
Working memory (WM) involves maintaining information in an on-line state. One emerging view is that information in WM is maintained via sensory recruitment, such that information is stored via sustained activity in the sensory areas that encode the to-be-remembered information. Using functional magnetic resonance imaging, we observed that key sensory regions such as primary visual cortex (V1) showed little evidence of sustained increases in mean activation during a WM delay period, though such amplitude increases have typically been used to determine whether a region is involved in on-line maintenance. However, a multivoxel pattern analysis of delay-period activity revealed a sustained pattern of activation in V1 that represented only the intentionally stored feature of a multifeature object. Moreover, the pattern of delay activity was qualitatively similar to that observed during the discrimination of sensory stimuli, suggesting that WM representations in V1 are reasonable “copies” of those evoked during pure sensory processing.
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Neurophysiological investigation of the basis of the fMRI signal
Logothetis, N. K., Pauls, J., Augath, M., Trinath, T., & Oeltermann, A. (2001) · Nature · doi:10.1038/35084005 · Cited by 6,551
Beyond mind-reading: multi-voxel pattern analysis of fMRI data
Norman, K. A., Polyn, S. M., Detre, G. J., & Haxby, J. V. (2006) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2006.07.005 · Cited by 2,271
Decoding the visual and subjective contents of the human brain
Kamitani, Y., & Tong, F. (2005) · Nature Neuroscience · doi:10.1038/nn1444 · Cited by 1,829
Overlapping mechanisms of attention and spatial working memory
Awh, E., & Jonides, J. (2001) · Trends in Cognitive Sciences · doi:10.1016/s1364-6613(00)01593-x · Cited by 1,229
Self-citationA neural basis for visual search in inferior temporal cortex
Chelazzi, L., Miller, E. K., Duncan, J., & Desimone, R. (1993) · Nature · doi:10.1038/363345a0 · Cited by 1,114
Using multi-voxel pattern analysis of fMRI data to interpret overlapping functional activations
Peelen, M. V., & Downing, P. E. (2007) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2006.10.009 · Cited by 110
Cited by
The Cognitive Neuroscience of Working Memory
D'Esposito, M., & Postle, B. R. (2015) · Annual Review of Psychology · doi:10.1146/annurev-psych-010814-015031 · Cited by 1,653
A taxonomy of external and internal attention.
Chun, M. M., Golomb, J. D., & Turk-Browne, N. B. (2011) · Annual Review of Psychology · doi:10.1146/annurev.psych.093008.100427 · Cited by 1,472
The Distributed Nature of Working Memory
Christophel, T. B., Klink, P. C., Spitzer, B., Roelfsema, P. R., & Haynes, J.-D. (2017) · Trends in Cognitive Sciences · doi:10.1016/j.tics.2016.12.007 · Cited by 882
Shared memories reveal shared structure in neural activity across individuals
Chen, J., Leong, Y. C., Honey, C. J., Yong, C. H., Norman, K. A., & Hasson, U. (2017) · Nature Neuroscience · doi:10.1038/nn.4450 · Cited by 645
A review of visual memory capacity: Beyond individual items and toward structured representations
Brady, T. F., Konkle, T., & Alvarez, G. A. (2011) · Journal of Vision · doi:10.1167/11.5.4 · Cited by 556
Metadata
- Authors
- Serences, J. T., Ester, E. F., Vogel, E. K., & Awh, E.
- Venue
- Psychological Science
- Publisher
- SAGE Publications
- Published
- 2009-02
- Volume
- 20
- Issue
- 2
- Pages
- 207-214
- ISSN
- 0956-7976 (ISSN-L)
- 1467-9280
- OpenAlex
- W2167957356
- Cited by
- 840
- References
- 6
- FWCI
- 17.05
- Type
- journal article
- Language
- en
- Open access
- green
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