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Researchers at UCD

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Peadar Grant

Visiting Lecturer

School Of Electric, Electron & Comms Eng
Engineering Building
Belfield
Dublin 4

Tel: +353 1 716
Email: peadar.grant@ucd.ie

Biography

Peadar Grant commenced his studies in Electronic Engineering in 2002 at University College Dublin.  He graduated with the BE degree in 2006.  He then pursued doctoral studies in the area of biomedical engineering at UCD, specifically focusing on computational modelling of volume conductor and network effects of deep brain stimulation (DBS).  He was awarded the PhD degree in 2011.

Major contributions to the field included quantitative analyses of the effects of finite volume head geometries and frequency dependent tissue properties on the waveforms and neural activation due to DBS.  This work was then extended to computational investigation of closed-loop stimulation protocols, which forms the main focus of his research at the current time.  In addition, he is actively developing new research in the area of smartphone-based rehabilitation.

Since his appointment, Dr. Grant actively contributes to the School's teaching portfolio at undergraduate and postgraduate level.  He is committed to the delivery of high-quality teaching that emphasises active learning.

[Personal website

Professional

 

Associations

Association: Society for Neuroscience, Function/Role: Member
Association: Society for Neuroscience, Function/Role: Member
Association: IEEE EMBS, Function/Role: Member
Association: Engineers Ireland, Function/Role: Member
Association: IEEE, Function/Role: Member
       

Committees

Committee : College of Engineering & Architecture IT Committee

Employment

Employer: University College Dublin
Position: Lecturer

Education

Year 2006 Institution: UCD
Qualification: BE Subject: Electronic Engineering
Year 2011 Institution: University College Dublin
Qualification: PhD Subject:

Languages

German:
English:
Irish:
French:
German:
 

Outreach Activities

Delivered Junior and Leaving-certificate level maths classes as a member of Engineers Ireland
Visited schools for the Engineers Ireland STEPS programme
Regular contributor to open-day talks for prospective students of Engineering.
 

Other Activities

Reviewer for Biomedical Engineering Online
Web-site co-ordinator for the School of Electrical, Electronic and Communications Engineering.

Publications

     

Peer Reviewed Journals

Grant P.F. and Lowery M.M. (2012) 'Simulation of cortico-basal ganglia oscillations and their suppression by closed loop deep brain stimulation'. IEEE Transactions on Neural Systems and Rehabilitation Engineering, . Link to full text [Details]
Grant P. and Lowery M.M.; (2010) 'Effect of dispersive conductivity and permittivity in volume conductor models of deep brain stimulation'. IEEE Transactions on Biomedical Engineering, . Link to full text [Details]
Grant, PF,Lowery, MM; (2009) 'Electric field distribution in a finite-volume head model of deep brain stimulation'. Medical engineering & physics, 31 :1095-1103. [DOI] Link to full text [Details]
 

Conference Publications

Grant, Peadar F and Lowery, Madeleine M (2012) Simulation of closed-loop DBS using coupled volume conductor and network model 34th Annual IEEE Engineering in Medicine and Biology Conference [Details]
Grant, Peadar F and Lowery, Madeleine M (2012) Contribution of dielectric dispersions to voltage waveforms arising from electrical stimulation 34th Annual IEEE Engineering in Medicine and Biology Society Annual Meeting [Details]
Grant P.F. and Lowery M.M. ; (2009) Effects of the electrical double layer and dispersive tissue properties in a volume conduction model of deep brain stimulation IEEE Engineering in Medicine and Biology Conference [Details]
Grant P.F. and Lowery M.M.; (2011) Approximations of the electrical double layer at the interface between stimulating electrodes and biological tissue may alter predicted thresholds of activation 2nd Annual Conference Of The International Functional Electrical Stimulation Society [Details]
Grant P. and Lowery M.M. ; (2008) Effect of tissue capacitance and dispersion in an inhomogeneous model of deep brain stimulation  Neuroscience 2008 [Details]
Grant P.F. and Lowery M.M.; (2011) Adaptive DBS amplitude control DBS Dublin 2011 [Details]
Grant P. and Lowery M.M. ; (2007) Modelling the electric field distribution of Deep Brain Stimulation for Parkinson¿s disease using an inhomogenous finite element head model  Neuroscience 2007 [Details]
Grant P.F. and Lowery M.M.; (2010) Simulation of PI control of high frequency deep brain stimulation Systems Approaches to Parkinson's Disease [Details]
Grant P.F. and Lowery M.M.; (2009) Quantifying the effects of material property frequency dispersion in volume conductor models of deep brain stimulation Proceedings of the 20th IET Irish Signals and Systems Conference [Details]
Grant P.F. and Lowery M.M.; (2009) Effect of tissue capacitance and dispersion on the electric field due to deep brain stimulation Proceedings of the 15th Bioengineering in Ireland [Details]
Grant P.F. and Lowery M.M.; (2008) Effect of tissue dispersion in a finite element model of Deep Brain Stimulation Proceedings of Bioengineering 2008, Imperial College London, UK [Details]
Grant, P.F. and Lowery M.M.; (2008) Simulation of electric field due to deep brain stimulation in a generalized inhomogeneous head model Proceedings of the 14th Bioengineering In Ireland Conference [Details]
                                                                                         

Research

Research Interests

Deep Brain Stimulation

My main research theme at the current time focuses on the computational modelling of deep brain stimulation, with particular application to the development of closed-loop stimulation for patients with Parkinson's Disease. [Full details on my website - click to view.]

Volume conductor modelling
Volume conductor modelling remains central to computational efforts to understand the mechanisms of action of Deep Brain Stimulation.  My first major contribution to this area is a quantitative analysis of the effect of different whole-head geometries on the electric field due to deep brain stimulation. [More details in Paper - click to view.

My second major contribution concerns the effect of frequency-dependent tissue properties on the stimulation waveform, and on the consequential neural activation.  Using a frequency-domain finite-element analysis coupled to a conductance-based neuron model, the effects of the frequency-dependent tissue and electrode properties were examined for a range of current and proposed stimulation parameters. [More details in Paper - click to view.]

My work on Volume Conductor modelling is a major component of my current research, as the potential usage of volume conductor models responds to assist the ongoing development of closed-loop stimulation. 

Closed-loop stimulation

At the present time, the majority of implanted Deep Brain Stimulation devices do not adjust the delivered stimulation in response to symptom severity.  My ongoing work in this area concerns computational models at various levels of detail of the pathological oscillations underlying Parkinson's Disease, and assessment of the performance of different closed-loop stimulation strategies. [Full details on my website - click to view.]

Rehabilitation technology

I am currently developing rehabilitation technology based around low-cost cloud-connected smartphone devices.  [Full details on my website - click to view.]  
  

Research Projects

Sponsor : University College Dublin (UCD)
Title : Heart-rate monitor for smartphone-based rehabilitation
Start Date / End Date : 01-MAY-12 / 31-OCT-13
   

Teaching

 

Modules Coordinated

201200   EEEN10030     Electronic & Electrical Eng: Understanding Digital Devices
       

Collaborators

Internal Collaborators

Dr. Madeleine Lowery

External Collaborators