Study of EEG Alpha Rhythm Changes Using Sham Neurofeedback in Virtual Reality to Improve Attentional Control in Adults 18 to 60

What this Trial Is About

Researchers are investigating whether an open-loop sham neurofeedback system can influence EEG alpha rhythms, which relate to attentional control. The study aims to find out if positive sham neurofeedback reduces relative EEG alpha power compared to no feedback, using a within-subject design. This research explores if such feedback can enhance attentional control, which is important because difficulties in attention are linked to mental health issues like depression and anxiety. Participants will experience three different conditions in a virtual reality setting positive sham neurofeedback, negative sham neurofeedback, and no feedback control. Positive and negative sham conditions provide simulated feedback mimicking successful or unsuccessful modulation of EEG alpha rhythms, respectively, while the control involves performing the attentional task without feedback. The study compares these to assess their effects on brain activity. During the study, participants undergo EEG recordings to measure changes in alpha power immediately after each intervention. They will provide written informed consent and complete all study procedures ethically. The main outcome measured is the relative alpha power as a marker of attentional resource allocation. The study includes adults aged 18 to 60 with normal or corrected vision and excludes those with certain medical conditions or discomfort using virtual reality. Participation involves experiencing all three conditions and EEG monitoring within a virtual environment.

Modulation of Cortical Brain Activity During Attentional Control