Researcher(s): Takuya Takahashi, Hiroki Abe, Tsuyoshi Eiro Researchers use a specialized brain imaging technique to identify a potential biomarker and therapeutic target of Long COVID Long COVID is a chronic condition that causes cognitive problems known as “brain fog,” but its biological mechanisms remain largely unclear. Now, researchers from Japan used a novel imaging technique to visualize AMPA receptors—key molecules for memory and learning—in the living brain. They discovered that higher A...