Neurological Function – King-Devick technologies, Inc.

August 26, 2020

Premorbid anxiety and depression and baseline neurocognitive, ocular-motor and vestibular performace: A retrospective cohort study

Highlights Athletes reporting premorbid anxiety and/or depression perform worse on visual motor speed components of neurocognitive testing No differences were found between matched controls and athletes reporting premorbid anxiety...

August 6, 2020

Contrast Acuity With Different Colors in Parkinson’s Disease

Background Abnormal color vision and contrast acuity may have significant impact on daily activities. Objective Evaluate color visual acuity, at high and low contrast, in Parkinson's disease (PD) and...

July 1, 2020

Responsiveness of a Balance Assessment Using a Mobile Application

Background: Balance assessment is used by clinicians as part of athlete concussion screening. The King-Devick (K-D) Balance app is designed to provide an objective balance assessment value. The purpose...

June 15, 2020

Neurocognitive Consequences of Call Duty in Residents at a Level 1 Trauma Center

Purpose: The King-Devick Test (KDT) has been used to assess neurocognitive consequences of call duty in residents and found less improvement in performance following call and in those reporting...

May 29, 2020

Differential Eye Movements and Visual Contrast Acuity in National Collegiate Athletic Association Athletes

Though studies describe postconcussive changes in eye movements, there is a need for data describing baseline eye movements. The purpose of this study was to describe baseline eye movements...

April 17, 2020

The Effect of Acute Body Unloading on Somatosensory Performance, Motor Activation, and Visuomotor Tasks

Abstract Objective: Evaluating countermeasures designed to reduce the impact of microgravity exposure on astronaut performance requires the development of effective methods of assessing changes to sensorimotor function in 1g...

November 25, 2019

Contrast Acuity and the King-Devick Test in Huntington’s Disease

Saccadic eye movement abnormalities are among the earliest manifestations of Huntington’s disease (HD) but are difficult to quantify at the bedside. Similarly, afferent visual pathway involvement in HD is...

November 21, 2019

Examining the Utility of a Novel Neurologic Test in Patients with Obstructive Sleep Apnea: A Pilot Study

Purpose: To test the association between participant King-Devick Test (KDT) times and obstructive sleep apnea (OSA) severity and evaluate for improvement after continuous positive airway pressure (CPAP) treatment. Methods:...

November 4, 2019

K-D Balance: An Objective Measure of Balance in Tandem and Double Leg Stances

Background and objective: Subjective grade-based scoring balance assessments tend to be lengthy and have demonstrated poor repeatability and reliability. This study examined the reliability of a mobile balance assessment...

October 29, 2019

A Pilot Exploratory Study Comparing the King-Devick Test (KDT) During and Between Migraine Attacks

Background: The King-Devick test is a timed rapid number naming task that involves complex cerebral functions. The objective of this pilot exploratory study is to determine whether there is...

October 15, 2019

Evaluating the Construct Validity of the King-Devick Test in a Psychological Outpatient Clinical Sample

The King–Devick test (K–D) has demonstrated sensitivity as a screener measure of ocular motor and cognitive problems. Despite its empirical support in the assessment of patients with certain injuries...

June 1, 2019

King Devick Test as a Monitor of Anesthetic Recovery: A Validation Study

Introduction: It is recommended that pediatric patients be released from the post-anesthesia recovery area once they are no longer at risk for cardiorespiratory depression. However, these guidelines do not...

May 4, 2019

The Effects of Alcohol Consumption on Cognitive Performance Using the King-Devick Rapid Number Naming Test and the Mobile Universal Lexicon Evaluation System

Objective: The objective of this study was to examine the effects of alcohol on cognitive performance with increasing blood alcohol concentration (BAC), as measured by the King-Devick (KD) test...

March 15, 2019

Measurement of Resident Fatigue Using Rapid Number Naming

Objective: Sleep deprivation has a negative effect on neurocognitive performance. The King-Devick test (KDT),which tests speed and accuracy of number-reading, requires integrity of saccades, visual processing, and cognition. This...

Research Abstract Category: Neurological Function