Concurrent Validity of a Head Mounted Display Augmented Reality Device with Accelerometer for Executive Function Testing in Healthy Young Versus Older Adults

Cognition measures traditionally employ static testing methods not involving functional movements. In contrast, a recently validated executive function (EF) test, the Walking Response and Inhibition Test (WRIT), involves generating postural responses to displayed visual commands while walking (as measures of functional mobility and intact executive functions). Two observational studies were conducted in healthy older and younger adult cohorts utilizing a portable version of the WRIT test (HMD-WRIT) with a head-mounted device and body position sensors. Two 3D motion analysis systems, three standardized cognition tests, and a mobility test were used to validate the portable device. Both studies supported use of the HMD-WRIT as a viable option for measuring EF during functional movements. Three Questions and Answers: -What do we already know about this topic? Previous research has shown efficacy with a Lab-based version of this test of Executive Function during dynamic activity (WRIT). -How does your research contribute to the field? Use of this portable device will allow anywhere administration of an Executive Function test during functional activity, rather than a static, computerized/paper-pencil type test. -What are your research’s implications towards theory, practice, or policy? Executive Function testing during functional activity allows for implications for dynamic, functional movements measurement and rehabilitative strategies pertinent to Activities of Daily Living (ADL) functions.