Assessing attentional bias for alcohol-related cues using eye tracking in a virtual reality environment

peer reviewedSeveral experimental paradigms were developed to measure attentional biases towards alcohol-related cues. However, most of them are based on reaction times to two-dimensional stimuli displayed on a computer screen, such that their ecological validity has been questioned. To address this, we integrated an eye tracking system into a virtual reality headset (ET-VR) and measured attentional biases in a subclinical population of alcohol users. In this exploratory study, forty social drinkers were recruited and immersed in a virtual bar including alcohol-related stimuli. Attentional focus was assessed using dwell time and number of fixations for these alcohol-related stimuli as well as for neutral stimuli unrelated to alcohol consumption. The results show that the number of fixations and, to a lesser extent, the dwell time for alcohol- related cues were positively correlated with the drinking motivation of the participants. In contrast, no significant correlation was found for neutral stimuli. In conclusion, the present study shows that alcohol-induced attentional biases can be studied using an ET-VR device in a subclinical population of alcohol users.3. Good health and well-bein

Assessing attentional bias for alcohol-related cues using eye tracking in a virtual reality environment

peer reviewedSeveral experimental paradigms were developed to measure attentional biases towards alcohol-related cues. However, most of them are based on reaction times to two-dimensional stimuli displayed on a computer screen, such that their ecological validity has been questioned. To address this, we integrated an eye tracking system into a virtual reality headset (ET-VR) and measured attentional biases in a subclinical population of alcohol users. In this exploratory study, forty social drinkers were recruited and immersed in a virtual bar including alcohol-related stimuli. Attentional focus was assessed using dwell time and number of fixations for these alcohol-related stimuli as well as for neutral stimuli unrelated to alcohol consumption. The results show that the number of fixations and, to a lesser extent, the dwell time for alcohol- related cues were positively correlated with the drinking motivation of the participants. In contrast, no significant correlation was found for neutral stimuli. In conclusion, the present study shows that alcohol-induced attentional biases can be studied using an ET-VR device in a subclinical population of alcohol users.3. Good health and well-bein

Some novel applications of VR in the domain of health

Recent progress in virtual reality (VR) technologies make immersion more accessible to everyone, and, in particular, developments aimed at the entertainment industry are being brought into to the domain of health. The main uses of VR in health are of two forms. First, it is a new method to diagnose and to treat patients; second, it is a new method to train and/or teach healthcare and emergency-response professionals. There are several reasons for using VR in healthcare. First, virtual environments (VE) are fully under control, so that the user (patient or professional) is then safe from any harm and the session can be interrupted if necessary. Second, there are many instances where placing the user in a real environment would be very hard to do and/or very costly. A major advantage of VR is that this user can instead be immerged in an equivalent artificial/virtual environment through the use of immersive technologies. Third, with regard to teaching, a significant advantage of VR is that it allows one “to bring the body to learning”, thereby effectively embedding new knowledge into the muscles. Below, we describe several uses of VR at our university in the domain of health. © Springer Nature Switzerland AG 2019