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Signal detection theory can be used to better understand cognitive fatigue A team of New Jersey researchers has shown that changes in perceptual certainty and response bias, two central metrics of signal detection theory (SDT), correlate with changes in cognitive fatigue. They also show that SDT measures change as a function of changes in brain activation. This finding was reported in Frontiers in Psychology on January 15, 2021, in the open access article "Using Signal Detection Theory to Better Understand Cognitive Fatigue" (doi:10.3389/fpsyg.2020.579188). The authors are Glenn Wylie, DPhil...

 E-Mail IMAGE: Dr. Wylie, the director of the Rocco Ortenzio Neuroimaging Center at Kessler Foundation, conducts research in cognitive fatigue in healthy individuals and populations with multiple sclerosis, brain injury, and Gulf... view more  Credit: Kessler Foundation/Jody Banks East Hanover, NJ. April 1, 2021. A team of New Jersey researchers has shown that changes in perceptual certainty and response bias, two central metrics of signal detection theory (SDT), correlate with changes in cognitive fatigue. They also show that SDT measures change as a function of changes in brain ac...

The authors are Rakesh Pilkar, PhD, Kamyar Momeni, PhD, Arvind Ramanujam, Manikandan Ravi, Erica Garbarini, and Gail F. Forrest, PhD, affiliated with the Center for Mobility and Rehabilitation Engineering Research and the Tim and Caroline Reynolds Center for Spinal Stimulation at Kessler Foundation. sEMG is a noninvasive technology that detects, records, and interprets the electrical activity of muscles. The quantifiable information on myoelectric output recorded by sEMG is extremely useful in assessing impairment and potentially determining patient-specific and effective interventions for in...

Researchers identify several factors that prevent use of sEMG in clinical neurorehabilitation Kessler Foundation researchers have identified several practical and technical barriers to the widespread use of surface electromyography (sEMG) in clinical neurorehabilitation. Based on their holistic analysis of these factors, the researchers suggest a collaborative, interdisciplinary, and unified approach to enable rehabilitation professionals to routinely use sEMG. The article, "Use of Surface EMG in Clinical Rehabilitation of Individuals With SCI: Barriers and Future Considerations" (doi: 10.338...

Functional connectivity in brain's fatigue network changes in response to cognitive fatigue Kessler Foundation researchers have demonstrated changes in the functional connectivity within the 'fatigue network' in response to cognitive fatigue. This finding, the first of its kind, was reported in Scientific Reports on December 14, 2020 in the open access article, "Using functional connectivity changes associated with cognitive fatigue to delineate a fatigue network" (doi: 10.1038//s41598-020-78768-3). The authors are Glenn Wylie, DPhil, Brian Yao, PhD, Helen M. Genova, PhD, Michele H. Chen, Ph...