Are accuracy and reaction time affected via different processes?

A recent study by van Ede et al. (2012) shows that the accuracy and reaction time in humans of tactile perceptual decisions are affected by an attentional cue via distinct cognitive and neural processes. These results are controversial as they undermine the notion that accuracy and reaction time are...

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Autores principales:	Martijn J Mulder, Leendert van Maanen
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2497ab83e62c4cb3a2c99ced43b6e4f1
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id	oai:doaj.org-article:2497ab83e62c4cb3a2c99ced43b6e4f1
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spelling	oai:doaj.org-article:2497ab83e62c4cb3a2c99ced43b6e4f12021-11-18T08:45:59ZAre accuracy and reaction time affected via different processes?1932-620310.1371/journal.pone.0080222https://doaj.org/article/2497ab83e62c4cb3a2c99ced43b6e4f12013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24260358/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203A recent study by van Ede et al. (2012) shows that the accuracy and reaction time in humans of tactile perceptual decisions are affected by an attentional cue via distinct cognitive and neural processes. These results are controversial as they undermine the notion that accuracy and reaction time are influenced by the same latent process that underlie the decision process. Typically, accumulation-to-bound models (like the drift diffusion model) can explain variability in both accuracy and reaction time by a change of a single parameter. To elaborate the findings of van Ede et al., we fitted the drift diffusion model to their behavioral data. Results show that both changes in accuracy and reaction time can be partly explained by an increase in the accumulation of sensory evidence (drift rate). In addition, a change in non-decision time is necessary to account for reaction time changes as well. These results provide a subtle explanation of how the underlying dynamics of the decision process might give rise to differences in both the speed and accuracy of perceptual tactile decisions. Furthermore, our analyses highlight the importance of applying a model-based approach, as the observed changes in the model parameters might be ecologically more valid, since they have an intuitive relationship with the neuronal processes underlying perceptual decision making.Martijn J MulderLeendert van MaanenPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 11, p e80222 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martijn J Mulder Leendert van Maanen Are accuracy and reaction time affected via different processes?
description	A recent study by van Ede et al. (2012) shows that the accuracy and reaction time in humans of tactile perceptual decisions are affected by an attentional cue via distinct cognitive and neural processes. These results are controversial as they undermine the notion that accuracy and reaction time are influenced by the same latent process that underlie the decision process. Typically, accumulation-to-bound models (like the drift diffusion model) can explain variability in both accuracy and reaction time by a change of a single parameter. To elaborate the findings of van Ede et al., we fitted the drift diffusion model to their behavioral data. Results show that both changes in accuracy and reaction time can be partly explained by an increase in the accumulation of sensory evidence (drift rate). In addition, a change in non-decision time is necessary to account for reaction time changes as well. These results provide a subtle explanation of how the underlying dynamics of the decision process might give rise to differences in both the speed and accuracy of perceptual tactile decisions. Furthermore, our analyses highlight the importance of applying a model-based approach, as the observed changes in the model parameters might be ecologically more valid, since they have an intuitive relationship with the neuronal processes underlying perceptual decision making.
format	article
author	Martijn J Mulder Leendert van Maanen
author_facet	Martijn J Mulder Leendert van Maanen
author_sort	Martijn J Mulder
title	Are accuracy and reaction time affected via different processes?
title_short	Are accuracy and reaction time affected via different processes?
title_full	Are accuracy and reaction time affected via different processes?
title_fullStr	Are accuracy and reaction time affected via different processes?
title_full_unstemmed	Are accuracy and reaction time affected via different processes?
title_sort	are accuracy and reaction time affected via different processes?
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/2497ab83e62c4cb3a2c99ced43b6e4f1
work_keys_str_mv	AT martijnjmulder areaccuracyandreactiontimeaffectedviadifferentprocesses AT leendertvanmaanen areaccuracyandreactiontimeaffectedviadifferentprocesses
_version_	1718421311015878656

Are accuracy and reaction time affected via different processes?

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