Eye-tracking

Chest X-rays are commonly used to help diagnose and manage chest conditions. Artificial intelligence (AI) tools are increasingly being used to support chest X-ray interpretation. However, it is not yet clear whether the timing of AI information affects how clinicians review images, make decisions, and use AI support. This study will look at whether showing AI information before or after a clinician first reviews a chest X-ray changes how they look at the image, how long they take, their interpretation decisions, their confidence, and their trust in AI support. Healthcare professional participants will complete two chest X-ray interpretation sessions in a controlled NHS research setting. During each session, participants will review de-identified chest X-ray images while wearing eye-tracking equipment. Eye-tracking will record where a participant looks on the image and how long they spend looking at different areas. In one session, AI information will be shown before the participant reviews the chest X-ray. In the other session, AI information will be shown after the participant has first reviewed the chest X-ray. The order of these two sessions will be balanced across participants. The study uses de-identified chest X-ray images from existing examinations. It does not involve patients directly, does not change clinical care, and no clinical decisions will be made from the study readings. Participants will also complete a short questionnaire about their experience of using AI support. A separate anonymous survey will collect wider views from clinicians, patients, members of the public, and healthcare staff about the use of AI in chest X-ray interpretation.

The facial palsy concerns between 15 and 40 people per 100000 inhabitants. They are of various etiologies such as infectious, tumoral, traumatic or idiopathic. It has variable severities with sometimes heavy functional repercussions and different recovery potentials. The proposed palliative treatments are based on surgery, physiotherapy and botulinum toxin injections. However, when recovery is incomplete, acceptance is more difficult, with an impacted quality of life. In this context, patients' expectations and feelings about their care may become difficult for clinicians to apprehend. The eye-tracking is widely used in the marketing field, but it also finds medical applications including head and neck lesions and facial palsy in particular. Published studies focus on the gaze of photographs, excluding any notion of dynamics and by the analysis of the gaze of outside observers, ignoring the patient's gaze.The main objective is to evaluate the attention paid to the facial side with abnormal facial movement by patients with facial paralysis compared to healthy volunteers.

The goal of this clinical trial is to determine whether an eye-tracking interactive agent can ameliorate communication impairments and reduce the incidence of complications among non-verbal patients in the intensive care unit (ICU). The main questions it aims to answer are: Does the eye tracking interactive agent alleviate communication impairments among non-verbal patients in the ICU? Does the eye tracking interactive agent improve communication efficiency among non-verbal patients in the ICU? Does the eye tracking interactive agent m reduce the incidence of negative emotions among non-verbal patients in the ICU? Does the eye tracking interactive agent shorten the ICU length of stay for non-verbal patients in the ICU? Does the eye tracking interactive agent reduce the dosage of analgesic and sedative medications for non-verbal patients in the ICU? Does the eye tracking interactive agent improve family satisfaction for non-verbal patients in the ICU? Does the eye tracking interactive agent alleviate nurses' communication burden among non-verbal patients in the ICU? Researchers will compare eye tracking interactive agent to conventional techniques to see if e eye tracking interactive agent works to alleviate communication impairments. Participants will: Use an eye tracking interactive agent for augmentative communication for 2 consecutive days Document each communication's details, ICU LOS, and analgesic-sedative dosages; assess communication difficulty severity, delirium, anxiety, family satisfaction and nurses' communication burden with validated scales.

Social cognition refers to the mental processes involved in social interactions, including social perception, motivation, communication, emotion recognition, and theory of mind. Face perception plays a key role in children's social development, but children with Autism Spectrum Disorder (ASD) tend to look less at social stimuli, especially faces, than typically developing (TD) peers. Eye-tracking studies highlight these visual exploration differences, linked to difficulties in joint attention, emotion recognition, and theory of mind, as well as in executive and memory functions. Standard diagnostic tests often require active participation and sufficient language, which makes assessment challenging for children with ASD and additional cognitive or language impairments. This research project investigates how visual activity supports social cognition depending on cognitive and language levels, hypothesizing that eye-tracking can provide useful indicators for ASD screening and diagnosis.

This study focuses on eye health and visual function in patients with Thyroid-Associated Ophthalmopathy (TAO), a condition that often causes bulging eyes and restricted eye movement. The purpose of this study is to use non-invasive eye-tracking technology to evaluate how the disease affects eye movement function. The investigators hypothesize that compared to healthy individuals, patients with TAO will show measurable differences in eye stability and the ability to track moving objects. Additionally, the investigators believe the disease may alter how patients visually scan faces (e.g., avoiding eye contact). The study will enroll 100 participants, including both patients and healthy volunteers. By recording gaze patterns while participants look at a screen, the investigators aim to objectively quantify the physical and social impact of the disease, providing better data for future treatment plans.

This research study investigates how hand gestures can support language comprehension and communication skills of hearing speaking, non-speaking, and/or minimally verbal individuals with Autism Spectrum Disorders (ASD), who are especially disadvantaged by the lack of accessible services in their rural communities. Individuals with other cognitive profiles, including Developmental Language Disorder (DLD), ADHD, Dyslexia, and others are welcome too. The study uses methods of eye tracking and recording of brain activity to understand how hand gestures adapted from signs from American Sign Language, such as \[cry\], can promote successful understanding of words like "cry". The overarching goal is to help families effectively utilize gestures to support communication with their children.

The facial palsy is a frequent disease with a lot of etiologies. It has variable severities with sometimes heavy functional repercussions and different recovery potentials. The proposed treatments are based on surgery, physiotherapy and botulinum toxin injections. However, when recovery is incomplete, acceptance is more difficult, with an impacted quality of life. Thanks to Motion Capture and Electromyography, a quantification of the facial mimicry is now possible with a great precision. In addition with the quantification of the facial mimicry, eye-tracking, wich is widely used in the marketing field, but it also finds medical applications including head and neck lesions and facial palsy in particular, will be used to evaluate the visio of the patients on their pathology in function of the movement quantification measured with MoCap and Electromyography. The aim of this research is to measure in a combined way the action potentials by sEMG and the amplitudes of displacement of the markers in motion capture, for movements determined in a population of patients presenting a facial pathology, in order to compare them with reference values obtained in healthy subjects. In a second step, the aim will be to study if there is a link between the way the patient looks at his pathology and the results of his management (treatment, rehabilitation) which will be quantitatively evaluated thanks to MoCap and sEMG.

Most studies use static visual percepts that are less representative of joint attention versus an ecological environment. This has the consequence of decreasing the perception of an interaction with a social partner, which is an essential step in achieving joint attention. The originality of this study is to improve the design of visual percepts (in the form of video) in order to mimic an ecological environment as much as possible by using MRI-ET coupling. The second originality of this study is the longitudinal exploration of the neurodevelopment of social cognition in autistic children. Studies by the Redcay and Oberwelland teams observe different activations at different ages. The hypothesis is that the perception of joint attention varies over time in people with ASD. To date, there are no studies to determine the influence of childhood neurodevelopment in autistic people on the perception of joint attention. It would be unprecedented to use the MRI-ET pairing as a tool for assessing social cognition as a function of the development of children with ASD.

Dentofacial deformities refer to morphological anomalies of the jaws. Their development during growth determines the shape of the lower third of the face and the type of dental occlusion. A maxillo-mandibular dysmorphosis associates morphological modification of the face and anomaly of the occlusion. If these anomalies are most often hereditary, they also depend on acquired factors such as swallowing, breathing, sucking or phonation disorders. Angle's classification defines three classes of dental occlusion: class I, when the ratio between the maxillary and mandibular first molars is normal, class II when the upper molar is too far forward, and class III when it is too far back. Class II and III dysmorphoses can result in an alteration of the masticatory function, pain (TMJ, headaches) or sleep apnea. At the same time, they cause patients to experience a decrease in self-esteem, anxiety and social discomfort. Class II and II usually require orthodontic treatment and orthognathic surgery to correctly align the jaws. This surgery has a positive impact on the dental occlusion and the functions concerned, but also on the facial morphology, all of which often leads to an improvement in the patient's quality of life. Standardized photographs presenting control subjects (class I) and patients (class II and class III) before and after surgery will be included in an approximately 10 min video sequence. Naive participants will look at this sequence during which the faces of the controls and the patients - before and after surgery - will alternate, with the instruction being free visual exploration of the images. The total fixation durations in defined areas of interest (eyes, nose, mouth, chin) will be recorded with an eye tracking device and the results will be processed using a dedicated software.