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Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception
A very basic computational model is proposed to explain two puzzling findings in the time perception literature. First, spontaneous motor actions are preceded by up to 1–2 s of preparatory activity (Kornhuber and Deecke, 1965). Yet, subjects are only consciously aware of about a quarter of a second...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Research Foundation
2010
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153755/ https://www.ncbi.nlm.nih.gov/pubmed/21833206 http://dx.doi.org/10.3389/fpsyg.2010.00037 |
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author | Nikolov, Stanislav Rahnev, Dobromir A. Lau, Hakwan C. |
author_facet | Nikolov, Stanislav Rahnev, Dobromir A. Lau, Hakwan C. |
author_sort | Nikolov, Stanislav |
collection | PubMed |
description | A very basic computational model is proposed to explain two puzzling findings in the time perception literature. First, spontaneous motor actions are preceded by up to 1–2 s of preparatory activity (Kornhuber and Deecke, 1965). Yet, subjects are only consciously aware of about a quarter of a second of motor preparation (Libet et al., 1983). Why are they not aware of the early part of preparation? Second, psychophysical findings (Spence et al., 2001) support the principle of attention prior entry (Titchener, 1908), which states that attended stimuli are perceived faster than unattended stimuli. However, electrophysiological studies reported no or little corresponding temporal difference between the neural signals for attended and unattended stimuli (McDonald et al., 2005; Vibell et al., 2007). We suggest that the key to understanding these puzzling findings is to think of onset detection in probabilistic terms. The two apparently paradoxical phenomena are naturally predicted by our signal detection theoretic model. |
format | Online Article Text |
id | pubmed-3153755 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2010 |
publisher | Frontiers Research Foundation |
record_format | MEDLINE/PubMed |
spelling | pubmed-31537552011-08-10 Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception Nikolov, Stanislav Rahnev, Dobromir A. Lau, Hakwan C. Front Psychol Psychology A very basic computational model is proposed to explain two puzzling findings in the time perception literature. First, spontaneous motor actions are preceded by up to 1–2 s of preparatory activity (Kornhuber and Deecke, 1965). Yet, subjects are only consciously aware of about a quarter of a second of motor preparation (Libet et al., 1983). Why are they not aware of the early part of preparation? Second, psychophysical findings (Spence et al., 2001) support the principle of attention prior entry (Titchener, 1908), which states that attended stimuli are perceived faster than unattended stimuli. However, electrophysiological studies reported no or little corresponding temporal difference between the neural signals for attended and unattended stimuli (McDonald et al., 2005; Vibell et al., 2007). We suggest that the key to understanding these puzzling findings is to think of onset detection in probabilistic terms. The two apparently paradoxical phenomena are naturally predicted by our signal detection theoretic model. Frontiers Research Foundation 2010-09-10 /pmc/articles/PMC3153755/ /pubmed/21833206 http://dx.doi.org/10.3389/fpsyg.2010.00037 Text en Copyright © 2010 Nikolov, Rahnev and Lau. http://www.frontiersin.org/licenseagreement This is an open-access article subject to an exclusive license agreement between the authors and the Frontiers Research Foundation, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are credited. |
spellingShingle | Psychology Nikolov, Stanislav Rahnev, Dobromir A. Lau, Hakwan C. Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title | Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title_full | Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title_fullStr | Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title_full_unstemmed | Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title_short | Probabilistic Model of Onset Detection Explains Paradoxes in Human Time Perception |
title_sort | probabilistic model of onset detection explains paradoxes in human time perception |
topic | Psychology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3153755/ https://www.ncbi.nlm.nih.gov/pubmed/21833206 http://dx.doi.org/10.3389/fpsyg.2010.00037 |
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