Hayley Fisher

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Much is known about how age affects the brain during tightly controlled, though largely contrived, experiments, but do these effects extrapolate to everyday life? Naturalistic stimuli, such as movies, closely mimic the real world and provide a window onto the brain's ability to respond in a timely and measured fashion to complex, everyday events. Young(More)
Ageing is characterized by declines on a variety of cognitive measures. These declines are often attributed to a general, unitary underlying cause, such as a reduction in executive function owing to atrophy of the prefrontal cortex. However, age-related changes are likely multifactorial, and the relationship between neural changes and cognitive measures is(More)
Memory problems are among the most common complaints as people grow older. Using structural equation modeling of commensurate scores of anterograde memory from a large (N = 315), population-derived sample (www.cam-can.org), we provide evidence for three memory factors that are supported by distinct brain regions and show differential sensitivity to age.(More)
I examine the effect of marriage penalties in the US income tax system on marital status. I construct a simulated instrument that exploits variation in the tax code over time and between US states to deal with potential endogeneity between the marriage penalty a couple faces and their marital status. I find that a $1000 increase in the marriage penalty(More)
Healthy ageing has disparate effects on different cognitive domains. The neural basis of these differences, however, is largely unknown. We investigated this question by using Independent Components Analysis to obtain functional brain components from 98 healthy participants aged 23-87 years from the population-based Cam-CAN cohort. Participants performed(More)
There is extensive evidence that married people are, on average, healthier than their unmarried counterparts. It is unclear how much this positive correlation can be explained by the selection of healthier people into marriage. In this paper, I estimate the effect of marriage relative to cohabitation on health and disability. I control for selection into(More)
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