The pattern of blood flow in the prefrontal cortex in the brains alters with age during multi-tasking, finds a new study. Increased blood volume, measured using oxygenated haemoglobin (Oxy-Hb) increased at the start of multitasking in all age groups. But to perform the same tasks, healthy older people had a higher and more sustained increase in Oxy-Hb than younger people.

Source: How the brain copes with multi tasking alters with age


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