Beschreibung:
<jats:title>Summary</jats:title><jats:p>Cognitive impairment is a core feature of schizophrenia. Evidence in this <jats:italic>Journal</jats:italic> suggests that disrupted circadian synchronisation of sleep–wake phases may be one cause. Circadian synchronisation depends on the external input of light–dark cues and the integrity of central nervous system circadian oscillators; these may represent new interventional targets to improve cognition.</jats:p>