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Simultaneous measures of brain and blood oxygenation: Revealing the function behind ‘functional’ brain mapping signals

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  • Full or part time
    Dr M Jones
    Dr J Berwick
  • Application Deadline
    No more applications being accepted
  • Competition Funded PhD Project (European/UK Students Only)
    Competition Funded PhD Project (European/UK Students Only)

Project Description

A technique called blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) can determine levels of different activity in parts of the living human brain and how malfunctions can occur in disease. However, currently the changes in task related brain tissue oxygenation changes that directly influence blood oxygenation signals are not well characterised and as such, the time course and spatial extent of the fMRI signal is difficult to interpret in terms of the underlying neurometabolic changes and brain activity. The classic technique of polarographic electrode recording of extra cellular tissue oxygen concentration has become in vogue as it is well suited to address this issue. However, no studies have combined this technique with optical imaging spectroscopy measurements of blood oxygenation and as such, the direct relevance of polarographic electrode data to fMRI is uncertain. Thus the present proposal seeks to combine these techniques to further our understanding of the temporal, spatial and functional role of the task evoked changes in cerebral blood oxygenation and as such, directly aid the interpretation of fMRI data.

Funding Notes

This is one of many projects in competition for the current funding opportunities available within the Department of Psychology. Please see here for full details: http://www.sheffield.ac.uk/psychology/prospectivepg/funding
Overseas students are welcome to apply for funding but must be able to demonstrate that they can fund the difference in the tuition fees.
Requirements: We ask for a minimum of a first class or high upper second-class undergraduate honours degree and a distinction or high merit at Masters level in psychology or a related discipline.

Related Subjects

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FTE Category A staff submitted: 34.45

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