scholarly journals Normative data for ages 18‐45 for ocular motor and vestibular testing using eye tracking

2021 ◽  
Author(s):  
Aura Kullmann ◽  
Robin C. Ashmore ◽  
Alexandr Braverman ◽  
Christian Mazur ◽  
Hillary Snapp ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Normative Data ◽  
Ocular Motor ◽  
Vestibular Testing

Eye Tracking Disorder in Schizophrenia Is Characterized by Specific Ocular Motor Defects and Is Associated with the Deficit Syndrome

1997 ◽  
Vol 42 (9) ◽  
pp. 781-796 ◽  
Author(s):  
David E. Ross ◽  
Gunvant K. Thaker ◽  
Robert W. Buchanan ◽  
Brian Kirkpatrick ◽  
Adrienne C. Lahti ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Ocular Motor ◽  
Deficit Syndrome

Eye tracking disorder in schizophrenia is characterized by specific ocular motor defects and is associated with the deficit syndrome

1997 ◽  
Vol 24 (1-2) ◽  
pp. 244
Author(s):  
David E. Ross ◽  
Gunvant K. Thaker ◽  
Robert W. Buchanan ◽  
Brian Kirkpatrick ◽  
Adrienne C. Lahti ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Ocular Motor ◽  
Deficit Syndrome

Baseline Normative Data Of The Vestibular/ocular Motor Screening (voms) Assessment For High School Athletes

2016 ◽  
Vol 48 ◽  
pp. 526
Author(s):  
Morgan Anderson ◽  
Melissa Anderson ◽  
Evan Dobbs ◽  
R.J. Elbin ◽  
Philip Shatz
Keyword(s):  
High School ◽  
Normative Data ◽  
Ocular Motor ◽  
High School Athletes

scholarly journals Portable eye-tracking as a reliable assessment of oculomotor, cognitive and reaction time function: Normative data for 18–45 year old

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260351
Author(s):  
Aura Kullmann ◽  
Robin C. Ashmore ◽  
Alexandr Braverman ◽  
Christian Mazur ◽  
Hillary Snapp ◽  
...  
Keyword(s):  
Clinical Practice ◽  
Reaction Time ◽  
Eye Tracking ◽  
Cognitive Processing ◽  
Normative Data ◽  
Head Injuries ◽  
Neural Pathways ◽  
Data Set ◽  
Normative Database ◽  
Tracking Technology

Eye movements measured by high precision eye-tracking technology represent a sensitive, objective, and non-invasive method to probe functional neural pathways. Oculomotor tests (e.g., saccades and smooth pursuit), tests that involve cognitive processing (e.g., antisaccade and predictive saccade), and reaction time tests have increasingly been showing utility in the diagnosis and monitoring of mild traumatic brain injury (mTBI) in research settings. Currently, the adoption of these tests into clinical practice is hampered by a lack of a normative data set. The goal of this study was to construct a normative database to be used as a reference for comparing patients’ results. Oculomotor, cognitive, and reaction time tests were administered to male and female volunteers, aged 18–45, who were free of any neurological, vestibular disorders, or other head injuries. Tests were delivered using either a rotatory chair equipped with video-oculography goggles (VOG) or a portable virtual reality-like VOG goggle device with incorporated infrared eye-tracking technology. Statistical analysis revealed no effects of age on test metrics when participant data were divided into pediatric (i.e.,18–21 years, following FDA criteria) and adult (i.e., 21–45 years) groups. Gender (self-reported) had an effect on auditory reaction time, with males being faster than females. Pooled data were used to construct a normative database using 95% reference intervals (RI) with 90% confidence intervals on the upper and lower limits of the RI. The availability of these RIs readily allows clinicians to identify specific metrics that are deficient, therefore aiding in rapid triage, informing and monitoring treatment and/or rehabilitation protocols, and aiding in the return to duty/activity decision. This database is FDA cleared for use in clinical practice (K192186).

scholarly journals Cervical Vestibular-Evoked Myogenic Potentials in Sedated Toddlers

2017 ◽  
Vol 22 (03) ◽  
pp. 197-202
Author(s):  
Ola Ibraheem ◽  
Mohammad Hassaan
Keyword(s):  
Young Children ◽  
Normative Data ◽  
Chloral Hydrate ◽  
T Test ◽  
Peak Amplitude ◽  
Vestibular Evoked Myogenic Potentials ◽  
Assessment Battery ◽  
Very Young Children ◽  
Vestibular Testing ◽  
State Of Tension

Introduction Cervical vestibular-evoked myogenic potentials (cVEMPs) are difficult to test in toddlers who cannot follow instructions or stay calm. Objective Due to the growing need for vestibular testing in very young children as a part of a delayed walking assessment battery, this study aimed to provide a solution to this problem by recording the cVEMPs in toddlers during sedation. Method The cVEMPs measures were assessed in 30 toddlers aged 12 to 36 months with normal motor milestones. They were sedated with chloral hydrate. Then, the head was retracted ∼ 30° backward with a pillow under the shoulders, and turned 45° contralateral to the side of stimulation to put the sternocleidomastoid (SCM) muscle in a state of tension. Results The P13 and N23 waves of the cVEMPs were recordable in all sedated toddlers. The cVEMPs measures resulted in the following: P13 latency of 17.5 ± 1.41 milliseconds, N23 latency of 25.58 ± 2.02 milliseconds, and peak-to-peak amplitude of 15.39 ± 3.45 µV. One-sample t-test revealed statistically significant longer latencies and smaller amplitude of the toddlers' cVEMPs relative to the normative data for adults. Conclusions The difficulty of cVEMPs testing in toddlers can be overcome by sedating them and attaining a position that contracts the SCM muscle. However, the toddlers' recordings revealed delayed latencies and smaller amplitudes than those of adults.

Short-Form Application of the Screening Test of Spanish Grammar and the Northwestern Syntax Screening Test to Latino Children

1978 ◽  
Vol 9 (4) ◽  
pp. 220-235
Author(s):  
David L. Ratusnik ◽  
Carol Melnick Ratusnik ◽  
Karen Sattinger
Keyword(s):  
New York ◽  
Case Studies ◽  
Metropolitan Area ◽  
Screening Test ◽  
Normative Data ◽  
Short Form ◽  
Latino Children ◽  
Data Application ◽  
York Metropolitan Area ◽  
Multiple Regression Technique

Short-form versions of the Screening Test of Spanish Grammar (Toronto, 1973) and the Northwestern Syntax Screening Test (Lee, 1971) were devised for use with bilingual Latino children while preserving the original normative data. Application of a multiple regression technique to data collected on 60 lower social status Latino children (four years and six months to seven years and one month) from Spanish Harlem and Yonkers, New York, yielded a small but powerful set of predictor items from the Spanish and English tests. Clinicians may make rapid and accurate predictions of STSG or NSST total screening scores from administration of substantially shortened versions of the instruments. Case studies of Latino children from Chicago and Miami serve to cross-validate the procedure outside the New York metropolitan area.

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