Digit symbol coding and general cognitive ability in schizophrenia: worth another look?

For decades, schizophrenia researchers have sought to map specific aspects of cognitive performance onto specific neurobiological systems in hopes of dividing broad cognition and neurobiology into more tractable components. Recent findings from studies using neuropsychological test batteries, in combination with emerging neurobiological evidence, argue for a complementary focus on more generalised cognitive and biological dimensions. Declaration of interest None.