Shirley Ryan AbilityLab
2 ARTICLES PUBLISHED IN JoVE
Behavior
Lexical Decision Task for Studying Written Word Recognition in Adults with and without Dementia or Mild Cognitive Impairment
Alexandre Nikolaev 1, Eve Higby 2,3, JungMoon Hyun 4, Sameer Ashaie 5,6
1Helsinki Collegium for Advanced Studies, University of Helsinki, 2University of California, Riverside, 3California State University, East Bay, 4Hunter College, City University of New York, 5Feinberg School of Medicine, Northwestern University, 6Shirley Ryan AbilityLab
This article describes how to implement a simple lexical decision experiment to assess written word recognition in neurologically healthy participants and in individuals with dementia and cognitive decline. We also provide a detailed description of reaction time analysis using principal components analysis (PCA) and mixed-effects modeling.
JoVE Core
Obtaining Quality Extended Field-of-View Ultrasound Images of Skeletal Muscle to Measure Muscle Fascicle Length
Amy N. Adkins 1,4,5, Wendy M. Murray 1,2,3,4,5
1Department of Biomedical Engineering, Northwestern University, 2Department of Physical Medicine & Rehabilitation, Northwestern University Feinberg School of Medicine, 3Department of Physical Therapy and Human Movement Sciences, Northwestern University Feinberg School of Medicine, 4Shirley Ryan AbilityLab, 5Edward Hines, Jr. VA Hospital
This study describes how to obtain high quality musculoskeletal images using the extended field-of-view ultrasound (EFOV-US) method for the purpose of making muscle fascicle length measures. We apply this method to muscles with fascicles that extend past the field-of-view of common traditional ultrasound (T-US) probes.
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