Effects of changes in end‐tidal PO <sub>2</sub> and PCO <sub>2</sub> on neural responses during rest and sustained attention
Tom Bullock, Barry Giesbrecht, Andrew E. Beaudin, Bradley G. Goodyear, Marc J. Poulin
Abstract
(hypocapnia and hypercapnia), (2) task-related neurovascular coupling was disrupted by all arterial blood gas manipulations, and (3) changes in task-related alpha and theta band activity and attenuation of the P3 ERP component amplitude were observed during hypocapnia. Since alpha and theta are linked with suppression of visual processing and executive control and P3 amplitude with task difficulty, these data suggest that transient arterial blood gas changes can modulate multiple stages of cognitive information processing.
Topics & Concepts
HypocapniaTranscranial DopplerElectroencephalographyCerebral blood flowNeuroscienceHypercapniaDefault mode networkCognitionPosterior cerebral arteryMedicinePsychologyMiddle cerebral arteryCardiologyAnesthesiaIschemiaAcidosisNeuroscience of respiration and sleepHeart Rate Variability and Autonomic ControlTraumatic Brain Injury and Neurovascular Disturbances