Fractioned reaction time as a function of response force |
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| Affiliation: | 1. Department of Chemistry, The University of Hong Kong, Hong Kong, China;2. Center for Bioinformatics and Computational Biology, and The Institute of Biomedical Sciences, School of Life Science, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China;1. Department of Clinical Neurophysiology, Oulu University Hospital, Finland;2. Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Finland;3. Department of Psychology and Speech-Language Pathology, Speech-Language Pathology, University of Turku, Finland;1. Physics Department, College of Science and Humanitarian Studies, Salman bin Abdulaziz University, Saudi Arabia;2. Physics Department, Faculty of Science, Damietta University, Egypt;3. Department of Mechatronics, Faculty of Technology, Firat University, Elazig, Turkey;4. Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA;5. Polymer Research Group, Physics Department, Faculty of Science, Mansoura University, Egypt;6. Department of Physics, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;7. Physics Department, Faculty of Science, Firat University, Elazig, Turkey;1. Institute of Applied Psychology, Guangdong University of Finance, 510521 Guangzhou, China;2. Laboratory for Behavioral and Regional Finance, Guangdong University of Finance, 510521 Guangzhou, China;3. Institute of Medical Psychology and Systems Neuroscience, University of Muenster, 48149 Muenster, Germany;4. Department of Clinical Psychology and Psychotherapy, University of Muenster, 48149 Muenster, Germany |
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| Abstract: | The relationship between fractionated reaction time components and response force was studied in a simple reaction time task. Subjects squeezed a force transducer between the right thumb and index finger. Three conditions with 5, 25, and 50% of the maximum voluntary isometric force were investigated in a counterbalanced order. The results showed that premotor reaction time was negatively related to peak force amplitude, while motor reaction time remained constant across force conditions. An interpretation of the effect on premotor reaction time in terms of a shift in the speed-accuracy trade-off function was refuted. Although the data were consistent with a two-stage programming model, it was concluded that differences in motor nerve fiber conduction velocity as a function of response force could explain the results obtained. |
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