We are thrilled to inform you about the clinical benefits of eye tracking. Every once in a while, we keep you updated on the latest news shared by the scientific community.
The current newsletter will make you discover 3 recent articles highlighting the relevance of eye tracking for
Enjoy the read!
The neuroClues® Team
Researchers from the John Hopkins Hospital developed a multi-task rapid battery test in a cohort encompassing multiple neurodegenerative disorders including mild cognitive impairment (MCI), Alzheimer’s disease (AD), Parkinson’s disease (PD), Parkinson’s disease mimics (PDM), and controls (CTRL).
The automated eye tracking analysis algorithms can extract interpretable and quantified biomarkers to evaluate the performance in smooth pursuit, saccade, visual exploration, and passage reading.
An example of sequences of screens for the five tasks employed along the timeline can be seen below.
A recent study in Optometry and Vision Science sheds light on saccade performance in 115 patients with a concussion history.
They reported that patients with concussion, on average, had fewer fixations on self-paced horizontal and vertical saccade tests and lower horizontal and vertical saccade speed/accuracy ratios compared with normative ranges.
They additionally identified risk factors for lower saccade performance among patients with a concussion history such as age, sex, number of concussion(s), and time from most recent concussion to oculomotor testing.
Future research could explore how the oculomotor performance changes over time, which may aid in ‘return-to-play’ decision-making for patients with sport-related concussion history.
In a recent case study, researchers used Video-Oculography to assess eye movements in a 64-year-old male with word-finding difficulties and mild visual spatial disturbances. They discovered marked increases in saccade latencies as seen in the table below, indicating dysfunction in the posterior parietal cortex. Subsequent investigations confirmed a diagnosis of posterior cortical atrophy (PCA) due to Alzheimer’s disease.
Eye movement studies have shown promise in distinguishing PCA from typical Alzheimer’s Disease, often revealing increased saccadic latencies and shorter saccades.