Interleaved Pro/Anti-saccade Behavior Across the Lifespan.

The capacity for inhibitory control is an important cognitive process that undergoes dynamic changes over the course of the lifespan. Robust characterization of this trajectory, considering age continuously and using flexible modeling techniques, is critical to advance our understanding of the neural mechanisms that differ in healthy aging and neurological disease. The interleaved pro/anti-saccade task (IPAST), in which pro- and anti-saccade trials are randomly interleaved within a block, provides a simple and sensitive means of assessing the neural circuitry underlying inhibitory control.

[A woman with a cavity in an intervertebral disc on the CT-scan].

The CT scan of a 77-year-old woman showed hypodense structures in the spine called vacuum phenomenon as an incidental finding. The cause in the majority of cases is the degeneration of tissue but vacuum phenomenon is also associated with other disorders. It is important to distinguish between benign causes and malignant causes.

[Persistent neonatal hypoglycaemia caused by arterial positioning of the umbilical venous catheter].

Two neonates, a girl born at 40 2/7 weeks weighing 4165 g and a boy born at 37 6/7 weeks weighing 4040 g, received umbilical venous catheters to help manage hypoglycaemia. The catheter was ineffective or only effective when high doses of glucose were used, due to what later appeared to be arterial positioning of the catheter. Both patients recovered without consequences.