TY - JOUR
T1 - Prepared or not prepared
T2 - Top-down modulation on memory of features and feature bindings
AU - Yang, Cheng Ta
AU - Tseng, Philip
AU - Huang, Kuan Yao
AU - Yeh, Yei Yu
N1 - Funding Information:
This work was supported by grants from National Science Council to C.-T. Yang (NSC 98-2410-H-006-118-MY2 and NCKU Top 100 University Advancement) and to Y.-Y. Yeh (NSC 99-2410-H-002-087-MY3 ). We thank C.-C. Hsu and J. Pan for their assistance on programming and data collection. Parts of the results were presented at the 48th Annual Meeting of Taiwanese Psychological Association, Taipei, Taiwan.
PY - 2012
Y1 - 2012
N2 - Orienting attention to the to-be-tested representations can enhance representations and protect them from interference. Previous studies have found that this effect on feature and bound representations was comparable despite their difference in stability. This may have occurred because participants were tested in a block design, which is susceptible to participants' effective top-down control on the cued representations based on the predictability of the design. In this study, we investigated how the foreknowledge of when and what to expect would affect visual representations in a change-detection task. Cue onset time was either early or late; changes included either features or feature bindings. When predictability was maximized via a block design (Experiments 1, 5, and 6), early cues equally facilitated both representations while late cues did not affect either representation. When either cue onset time (Experiment 2) or change type (Experiment 3) was unpredictable, early cues consistently facilitated feature representations, while bound representations were enhanced only when cue onset time was predictable. Additionally, late cuing only cost bound representations. Finally, when both factors were no longer predictable via an intermixed design (Experiment 4), early-cuing benefit was eliminated, with a late cuing cost for the bound representations. These results highlight the critical role of effective top-down control in memory maintenance for visual representations.
AB - Orienting attention to the to-be-tested representations can enhance representations and protect them from interference. Previous studies have found that this effect on feature and bound representations was comparable despite their difference in stability. This may have occurred because participants were tested in a block design, which is susceptible to participants' effective top-down control on the cued representations based on the predictability of the design. In this study, we investigated how the foreknowledge of when and what to expect would affect visual representations in a change-detection task. Cue onset time was either early or late; changes included either features or feature bindings. When predictability was maximized via a block design (Experiments 1, 5, and 6), early cues equally facilitated both representations while late cues did not affect either representation. When either cue onset time (Experiment 2) or change type (Experiment 3) was unpredictable, early cues consistently facilitated feature representations, while bound representations were enhanced only when cue onset time was predictable. Additionally, late cuing only cost bound representations. Finally, when both factors were no longer predictable via an intermixed design (Experiment 4), early-cuing benefit was eliminated, with a late cuing cost for the bound representations. These results highlight the critical role of effective top-down control in memory maintenance for visual representations.
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U2 - 10.1016/j.actpsy.2012.09.010
DO - 10.1016/j.actpsy.2012.09.010
M3 - Article
C2 - 23089041
AN - SCOPUS:84867615209
SN - 0001-6918
VL - 141
SP - 327
EP - 335
JO - Acta Psychologica
JF - Acta Psychologica
IS - 3
ER -