AI Insight
Researchers identified a long-range inhibitory neural pathway from the basal forebrain to the cortex that enhances sensory processing through disinhibition, meaning it suppresses inhibitory neurons to increase cortical activity. This circuit encodes motivationally relevant information and its activity correlates with moment-to-moment variations in attentional performance. The findings reveal a specific neural mechanism by which the brain maintains and regulates sustained attention in real time.
Why it matters
Understanding the neural circuits underlying sustained attention could inform treatments for attention-deficit disorders and conditions where attention is impaired. This knowledge may also guide the development of targeted interventions for cognitive enhancement or therapeutic approaches for disorders involving basal forebrain dysfunction, such as Alzheimer's disease.
Understand the Science
A long-range inhibitory projection from the basal forebrain disinhibits the cortex to amplify sensory responses. This circuit encodes motivational salience and predicts moment-to-moment attentional performance, providing a mechanism for the real-time control of sustained attention.
Source: A disinhibitory basal forebrain-to-cortex projection supports sustained attention