Brain fog describes mild and temporary problems with thinking, focusing, and remembering. Chronic pain, long COVID, and sleep deprivation are common causes of brain fog. Hormonal changes and stress ...

Patients with brain injury who are unresponsive to commands may perform cognitive tasks that are detected on functional magnetic resonance imaging (fMRI) and electroencephalography (EEG). This ...

What gives rise to human consciousness? Are some parts of the brain more important than others? Scientists began tackling these questions in more depth about 35 years ago. Researchers have made ...

This is part 2 of a 5-part series. Part 1 provided an overview of the leading theories of consciousness. In this post, we will focus on higher-order theories (HOTs) of consciousness, one of several ...