Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength
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The Ohio State University / OhioLINK
2012
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=osu1337642308 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-osu13376423082021-08-03T06:05:02Z Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength Intermaggio, Victor G. Behavioral Sciences Cognitive Psychology Experimental Psychology Psychology Quantitative Psychology Sequential Sampling Models Diffusion Model Confidence Confidence Judgments Simple Decision Multichoice Decisions Response Time Brightness Discrimination We applied a sequential sampling model (RTCON2; Ratcliff & Starns, submitted) to confidence judgments from a brightness discrimination task. Subjects in the experiments were asked whether test items were bright or dark, and responded with one of six possible choices that ranged from “very sure dark” to “very sure bright”. The confidence judgment and response time data are qualitatively similar to those typically found in recognition memory tasks. We fitted RTCON2 to the data and used the model to explain the mechanisms underlying the confidence judgment decision process. Because this was a perceptual task, we were able to control the stimulus strength values (brightness) and the variability of those values within an experimental condition. This allowed us to test the model's assumptions and quality of measurement of an important model component: between-trial variability in stimulus strength. We demonstrate the utility of RTCON2 when used in conjunction with explicit knowledge of external stimulus strength values. We also implement and discuss other applications of the combination of control over perceptual stimuli with the computational process model of RTCON2. 2012-06-22 English text The Ohio State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=osu1337642308 http://rave.ohiolink.edu/etdc/view?acc_num=osu1337642308 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
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English |
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NDLTD |
| topic |
Behavioral Sciences Cognitive Psychology Experimental Psychology Psychology Quantitative Psychology Sequential Sampling Models Diffusion Model Confidence Confidence Judgments Simple Decision Multichoice Decisions Response Time Brightness Discrimination |
| spellingShingle |
Behavioral Sciences Cognitive Psychology Experimental Psychology Psychology Quantitative Psychology Sequential Sampling Models Diffusion Model Confidence Confidence Judgments Simple Decision Multichoice Decisions Response Time Brightness Discrimination Intermaggio, Victor G. Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| author |
Intermaggio, Victor G. |
| author_facet |
Intermaggio, Victor G. |
| author_sort |
Intermaggio, Victor G. |
| title |
Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| title_short |
Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| title_full |
Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| title_fullStr |
Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| title_full_unstemmed |
Modeling Confidence and Response Time in Brightness Discrimination: Testing Models of the Decision Process with Controlled Variability in Stimulus Strength |
| title_sort |
modeling confidence and response time in brightness discrimination: testing models of the decision process with controlled variability in stimulus strength |
| publisher |
The Ohio State University / OhioLINK |
| publishDate |
2012 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=osu1337642308 |
| work_keys_str_mv |
AT intermaggiovictorg modelingconfidenceandresponsetimeinbrightnessdiscriminationtestingmodelsofthedecisionprocesswithcontrolledvariabilityinstimulusstrength |
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1719430617502842880 |