Ian Robertson, PhD
By studying the attention systems of the brain and their relationship to neurotransmitter systems, in particular the norepinephrine/locus ceruleus system, I have been able to develop effective cognitive training methods for a range of disorders ranging from attention deficit hyperactivity disorder to schizophrenia and from traumatic brain injury to the aging brain. My lab was the first to show that it is possible to measure norepinephrine (NE) activity in the waking human brain using pupillometry, which is important because of the critical role of NE in brain plasticity in general, and the development of "cognitive reserve" in particular. I published an influential theory of cognitive reserve showing that NE activity may mediate the diverse correlates of the hypothetical construct ‘cognitive reserve, including education level, mental stimulation, novelty, social networks and IQ.