Delta plots for conflict tasks
- We describe a mathematically simple yet precise model of activation suppression that can explain the negative-going delta plots often observed in standard Simon tasks. The model postulates a race between the identification of the relevant stimulus attribute and the suppression of irrelevant location-based activation, with the irrelevant activation only having an effect if the irrelevant activation is still present at the moment when central processing of the relevant attribute starts. The model can be fitted by maximum likelihood to observed distributions of RTs in congruent and incongruent trials, and it provides good fits to two previously-reported data sets with plausible parameter values. R and MATLAB software for use with the model is provided.
| Author details: | Jeff MillerORCiD, Wolfgang SchwarzORCiDGND |
|---|---|
| DOI: | https://doi.org/10.3758/s13423-021-01900-5 |
| ISSN: | 1069-9384 |
| ISSN: | 1531-5320 |
| Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/34327678 |
| Title of parent work (English): | Psychonomic bulletin & review : a journal of the Psychonomic Society |
| Subtitle (English): | an activation-suppression race model |
| Publisher: | Springer |
| Place of publishing: | New York |
| Publication type: | Article |
| Language: | English |
| Date of first publication: | 2021/07/29 |
| Publication year: | 2021 |
| Release date: | 2023/10/02 |
| Tag: | Activation suppression model; Delta plots; RT models; Simon effect |
| Volume: | 28 |
| Issue: | 6 |
| Number of pages: | 20 |
| First page: | 1776 |
| Last Page: | 1795 |
| Funding institution: | Deutsche Forschungsgemeinschaft (DFG)German Research Foundation (DFG) [SCHW 611/5-1] |
| Organizational units: | Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Psychologie |
| DDC classification: | 1 Philosophie und Psychologie / 15 Psychologie / 150 Psychologie |
| 6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit | |
| Peer review: | Referiert |
