Abstract
When multiple objects are presented briefly and simultaneously in a visual array, visual short-term memory (VSTM) can maintain only a limited number of these items. The present research report reveals that splitting the to-be-remembered items into two sequential arrays significantly increases VSTM performance relative to the simultaneous presentation of the same items. A memory benefit also emerges when the full object array is flashed twice (repeated) rather than being presented continuously for the same duration. Moreover, the sequential and repetition benefits are specifically pronounced for individuals with low performance for simultaneously presented items. Our results suggest that the conventional, simultaneous presentation mode may underestimate VSTM performance due to attentional limitations and/or competition between stimulus representations. In contrast, temporal segregation of the stimulus input may help participants maximize their performance and utilize their full VSTM capacity.
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References
Broadbent, D. E., & Broadbent, M. H. P. (1981). Recency effects in visual memory. Quarterly Journal of Experimental Psychology, 33A, 1–15.
Cowan, N. (2001). The magical number 4 in short-term memory: A reconsideration of mental storage capacity. Behavioral & Brain Sciences, 24, 87–114; discussion, 114–185. doi:10.1017/S0140525X01003922
Desimone, R., & Duncan, J. (1995). Neural mechanisms of selective visual attention. Annual Review of Neuroscience, 18, 193–222. doi:10.1146/annurev.ne.18.030195.001205
Fecteau, J., & Shapiro, K. (2008). Multiplying the capacity of visual working memory [Abstract]. Journal of Vision, 8(6), 1168a.
Fukuda, K., & Vogel, E. K. (2009). Human variation in overriding attentional capture. Journal of Neuroscience, 29, 8726–8733. doi:10.1523/JNEUROSCI.2145-09.2009
Johnson, J. S., Spencer, J. P., Luck, S. J., & Schöner, G. (2009). A dynamic neural field model of visual working memory and change detection. Psychological Science, 20, 568–577. doi:10.1111/j.1467-9280.2009.02329.x
Kumar, A., & Jiang, Y. (2005). Visual short-term memory for sequential arrays. Memory & Cognition, 33, 488–498.
Luck, S. J., & Vogel, E. K. (1997). The capacity of visual working memory for features and conjunctions. Nature, 390, 279–281. doi:10.1038/36846
Mayer, J. S., Bittner, R. A., Nikolic, D., Bledowski, C., Goebel, R., & Linden, D. E. (2007). Common neural substrates for visual working memory and attention. NeuroImage, 36, 441–453. doi:10.1016/ j.neuroimage.2007.03.007
Olson, I. R., & Jiang, Y. (2004). Visual short-term memory is not improved by training. Memory & Cognition, 32, 1326–1332.
Olson, I. R., Jiang, Y., & Moore, K. S. (2005). Associative learning improves visual working memory performance. Journal of Experimental Psychology: Human Perception & Performance, 31, 889–900. doi:10.1037/0096-1523.31.5.889
Pashler, H. (1988). Familiarity and visual change detection. Perception & Psychophysics, 44, 369–378.
Sligte, I. G., Scholte, H. S., & Lamme, V. A. F. (2008). Are there multiple visual short-term memory stores? PLoS ONE, 3, e1699. doi:10.1371/journal.pone.0001699
Strasburger, H., Harvey, L. O., Jr., & Rentschler, I. (1991). Contrast thresholds for identification of numeric characters in direct and eccentric view. Perception & Psychophysics, 49, 495–508.
Vogel, E. K., & Machizawa, M. G. (2004). Neural activity predicts individual differences in visual working memory capacity. Nature, 428, 748–751. doi:10.1038/nature02447
Vogel, E. K., McCollough, A. W., & Machizawa, M. G. (2005). Neural measures reveal individual differences in controlling access to working memory. Nature, 438, 500–503. doi:10.1038/nature04171
Vogel, E. K., Woodman, G. F., & Luck, S. J. (2006). The time course of consolidation in visual working memory. Journal of Experimental Psychology: Human Perception & Performance, 32, 1436–1451. doi:10.1037/0096-1523.32.6.1436
Xu, Y., & Chun, M. M. (2006). Dissociable neural mechanisms supporting visual short-term memory for objects. Nature, 440, 91–95. doi:10.1038/nature04262
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The present study was supported by grants to all the authors from the Wales Institute of Cognitive Neuroscience.
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Ihssen, N., Linden, D.E.J. & Shapiro, K.L. Improving visual short-term memory by sequencing the stimulus array. Psychonomic Bulletin & Review 17, 680–686 (2010). https://doi.org/10.3758/PBR.17.5.680
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DOI: https://doi.org/10.3758/PBR.17.5.680