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Exploring the Limitations of the Shielding Function of Categorization Rules in Task-Switching
Guo, Dong1; Li, Bingxin2,3; Yu, Yun4; Liu, Xuhong2; Li, Xiangqian1
First AuthorGuo, Dong
Correspondent Emailxiangqian li 2070164l@gmail.com
Contribution Rank3
Abstract

Applying categorization rules narrows attention toward the relevant features of a target and helps participants to ignore the irrelevant features of the target. This is called the shielding function of categorization rules. Here we explored the limitation of the shielding function in two task-switching experiments. In Experiment 1, we assigned each target a single digital numeral as an additional feature in addition to conventional bivalent features as in the previous task-switching experiments with bivalent tasks. In the first two stages of Experiment 1, half of the participants learned the numeral-response associations and the other half used an alternative numeral-categorization rule to infer the response. Without participants applying conventional task-switching rules, the switching costs disappeared. Moreover, when participants performed tasks by numeral-response associations the bivalent features interfered with response retrieval and caused response-congruency effects, whereas when participants applied the numeral-categorization rule, the bivalent features were shielded away and thereby the response-congruency effects disappeared. In the third stage, in which all participants applied task-switching rules by discriminating between bivalent features (i.e., filling and orientations), we found task-switching costs and response-congruency effects. In Experiment 2, new bivalent features produced stronger interference compared to Experiment 1. As a consequence, participants in both the association group and the numeral-categorization rule group showed significant response-congruency effects in the first two stages, where task-switching rules were not introduced. It follows that the shielding function of categorization rules has limits- strong interference from bivalent features can break down the shielding function. In addition, participants in the association group showed task-switching costs without being informed about the task-switching rules. We propose that strong proactive interference can produce task-switching costs even without the use of task-switching rules.

Keywordtask-switching bivalent features shielding function of task set task-switching cost congruency effect
2019-05-28
Language英语
DOI10.3389/fpsyg.2019.01212
Source PublicationFRONTIERS IN PSYCHOLOGY
ISSN1664-1078
Volume10Pages:17
Subtypearticle
Indexed BySCI
Funding ProjectChina Postdoctoral International Exchange Program
PublisherFRONTIERS MEDIA SA
WOS KeywordEVENT FILES ; COGNITIVE CONTROL ; INTERFERENCE ; SETS ; REPRESENTATIONS ; INTEGRATION ; PERCEPTION ; PSYTOOLKIT ; ATTENTION ; SELECTION
WOS Research AreaPsychology
WOS SubjectPsychology, Multidisciplinary
WOS IDWOS:000469276700002
Funding OrganizationChina Postdoctoral International Exchange Program
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/29350
Collection认知与发展心理学研究室
Corresponding AuthorLi, Xiangqian
Affiliation1.Fudan Univ, Sch Social Dev & Publ Policy, Shanghai, Peoples R China
2.Univ Glasgow, Sch Psychol, Glasgow, Lanark, Scotland
3.Chinese Acad Sci, Inst Psychol, Beijing, Peoples R China
4.East China Normal Univ, Inst Int & Comparat Educ, Shanghai, Peoples R China
Recommended Citation
GB/T 7714
Guo, Dong,Li, Bingxin,Yu, Yun,et al. Exploring the Limitations of the Shielding Function of Categorization Rules in Task-Switching[J]. FRONTIERS IN PSYCHOLOGY,2019,10:17.
APA Guo, Dong,Li, Bingxin,Yu, Yun,Liu, Xuhong,&Li, Xiangqian.(2019).Exploring the Limitations of the Shielding Function of Categorization Rules in Task-Switching.FRONTIERS IN PSYCHOLOGY,10,17.
MLA Guo, Dong,et al."Exploring the Limitations of the Shielding Function of Categorization Rules in Task-Switching".FRONTIERS IN PSYCHOLOGY 10(2019):17.
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