Backward Neural Connections (IMAGE) Champalimaud Centre for the Unknown Caption The existence of 'backwards' neural connections linking distant areas of the neocortex -– the part of the brain responsible for higher cognitive functions -- have baffled scientists for decades. Credit Marques et al. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.