Sam John

Distinct Neural Correlates Underlie Inhibitory Mechanisms of Motor Inhibition and Motor Imagery Restraint

PE Yoo, TJ Oxley, MA Hagan, S John, SM Ronayne, GS Rind, AM Brinded, NL Opie, BA Moffat, YT Wong

Journal article  |  2020  |  Frontiers in Behavioral Neuroscience

There is evidence to suggest that motor execution and motor imagery both involve planning and execution of the same motor plan, ho..

The future potential of the Stentrode

Sam E John, David B Grayden, Takufumi Yanagisawa

Journal article  |  2019  |  Expert Review of Medical Devices

The StentrodeTM is a miniaturized neural interface that can record and stimulate the brain from within a blood vessel [1,2]. The S..

Neural Stimulation with an Endovascular Brain-Machine Interface

NL Opie, SE John, G Gerboni, GS Rind, TJH Lovell, SM Ronayne, YT Wong, CN May, DB Grayden, TJ Oxley

Conference Proceedings  |  2019  |  2019 9th International IEEE/EMBS Conference on Neural Engineering (NER)

Stimulation of deep cortical structures has been demonstrated to provide symptomatic alleviation to people with depression, Parkin..

Evaluation of a minimally invasive endovascular neural interface for decoding motor activity

IA Forsyth, M Dunston, G Lombardi, GS Rind, S Ronayne, YT Wong, CN May, DB Grayden, T Oxley, N Opie, SE John

Conference Proceedings  |  2019  |  2019 9th International IEEE/EMBS Conference on Neural Engineering (NER)

Endovascular devices like the Stentrode™ provide a minimally invasive approach to brain-machine-interfaces that mitigates safety c..

In Vivo Impedance Characterization of Cortical Recording Electrodes Shows Dependence on Electrode Location and Size

Sam E John, Nicholas V Apollo, Nicholas L Opie, Gil S Rind, Stephen M Ronayne, Clive N May, Thomas J Oxley, David B Grayden

Journal article  |  2019  |  IEEE Transactions on Biomedical Engineering

Penumbral imaging and functional outcome in patients with anterior circulation ischaemic stroke treated with endovascular thrombectomy versus medical therapy: a meta-analysis of individual patient-level data

Bruce CV Campbell, Charles BLM Majoie, Gregory W Albers, Bijoy K Menon, Nawaf Yassi, Gagan Sharma, Wim H van Zwam, Robert J van Oostenbrugge, Andrew M Demchuk, Francis Guillemin, Philip White, Antoni Davalos, Aad van der Lugt, Kenneth S Butcher, Aboubaker Cherifi, Henk A Marquering, Geoffrey Cloud, Juan M Macho Fernandez, Jeremy Madigan, Catherine Oppenheim, et al.

Journal article  |  2019  |  The Lancet Neurology

Focal stimulation of the sheep motor cortex with a chronically implanted minimally invasive electrode array mounted on an endovascular stent

Nicholas L Opie, Sam E John, Gil S Rind, Stephen M Ronayne, Yan T Wong, Giulia Gerboni, Peter E Yoo, Timothyj H Lovell, Theodore CM Scordas, Stefan L Wilson, Anthony Dornom, Thomas Vale, Terence J O'brien, David B Grayden, Clive N May, Thomasj Oxley

Journal article  |  2018  |  Nature Biomedical Engineering

A Stent-Based Power and Data Link for Sensing Intravascular Biological Indicators

Ammar Aldaoud, JM Redoute, K Ganesan, undefined G. S. Rind, SE John, SM Ronayne, NL Opie, DJ Garrett, S Prawer

Journal article  |  2018  |  IEEE Sensors Letters

Feasibility of identifying the ideal locations for motor intention decoding using unimodal and multimodal classification at 7T-fMRI

Peter E Yoo, Thomas J Oxley, Sam E John, Nicholas L Opie, Roger J Ordidge, Terence J O'Brien, Maureen A Hagan, Yan T Wong, Bradford A Moffat

Journal article  |  2018  |  SCIENTIFIC REPORTS

Optimized partial-coverage functional analysis pipeline (OPFAP): a semi-automated pipeline for skull stripping and co-registration of partial-coverage, ultra-high-field functional images

Peter E Yoo, Jon O Cleary, Scott C Kolbe, Roger J Ordidge, Terence J O'Brien, Nicholas L Opie, Sam E John, Thomas J Oxley, Bradford A Moffat

Journal article  |  2018  |  Magnetic Resonance Materials in Physics, Biology and Medicine

Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data

Luis San Roman, Bijoy K Menon, Jordi Blasco, Maria Hernandez-Perez, Antoni Davalos, Charles BLM Majoie, Bruce CV Campbell, Francis Guillemin, Hester Lingsma, Rene Anxionnat, Jonathan Epstein, Jeffrey L Saver, Henk Marquering, John H Wong, Demetrius Lopes, Gernot Reimann, Hubert Desal, Diederik WJ Dippel, Shelagh Coutts, Richard du Mesnil de Rochemont, et al.

Journal article  |  2018  |  The Lancet Neurology

Visual evoked potentials determine chronic signal quality in a stent-electrode endovascular neural interface

G Gerboni, SE John, GS Rind, SM Ronayne, CN May, TJ Oxley, DB Grayden, NL Opie, YT Wong

Journal article  |  2018  |  Biomedical Physics & Engineering Express

Cortical Brain Stimulation with Endovascular Electrodes.

G Gerboni, SE John, SM Ronayne, GS Rind, CN May, TJ Oxley, DB Grayden, NL Opie, YT Wong

Conference Proceedings  |  2018  |  2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

Electrical stimulation of neural tissue and recording of neural activity are the bases of emerging prostheses and treatments for s..

Spatially dynamic recurrent information flow across long-range dorsal motor network encodes selective motor goals

Peter E Yoo, Maureen A Hagan, Sam E John, Nicholas L Opie, Roger J Ordidge, Terence J O'Brien, Thomas J Oxley, Bradford A Moffat, Yan T Wong

Journal article  |  2018  |  Human Brain Mapping

Signal quality of simultaneously recorded endovascular, subdural and epidural signals are comparable

Sam E John, Nicholas L Opie, Yan T Wong, Gil S Rind, Stephen M Ronayne, Giulia Gerboni, Sebastien H Bauquier, Terence J O'Brien, Clive N May, David B Grayden, Thomas J Oxley

Journal article  |  2018  |  SCIENTIFIC REPORTS

An ovine model of cerebral catheter venography for implantation of an endovascular neural interface

Thomas James Oxley, Nicholas Lachlan Opie, Gil Simon Rind, Kishan Liyanage, Sam Emmanuel John, Stephen Ronayne, Alan James McDonald, Anthony Dornom, Timothy John Haynes Lovell, Peter John Mitchell, Iwan Bennett, Sebastien Bauquier, Leon Norris Warne, Chris Steward, David Bruce Grayden, Patricia Desmond, Stephen M Davis, Terence John O'Brien, Clive N May

Journal article  |  2018  |  Journal of Neurosurgery

Consistency of Long-Term Subdural Electrocorticography in Humans

Ewan S Nurse, Sam E John, Dean R Freestone, Thomas J Oxley, Hoameng Ung, Samuel F Berkovic, Terence J O'Brien, Mark J Cook, David B Grayden

Journal article  |  2018  |  IEEE Transactions on Biomedical Engineering

Near-field wireless power transfer to stent-based biomedical implants

A Aldaoud, Jean-Michel Redoute, Kumaravelu Ganesan, G Rind, S John, S Ronayne, N Opie, D Garrett, S Prawer

Journal article  |  2018  |  IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology

Safe wireless power transfer is an essential requirement for biomedical implants. Emerging technologies are becoming smaller, less..

Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data

Bruce CV Campbell, Wim H van Zwam, Mayank Goyal, Bijoy K Menon, Diederik WJ Dippel, Andrew M Demchuk, Serge Bracard, Philip White, Antoni Davalos, Charles BLM Majoie, Aad van der Lugt, Gary A Ford, Natalia Perez de la Ossa, Michael Kelly, Romain Bourcier, Geoffrey A Donnan, Yvo BWEM Roos, Oh Young Bang, Raul G Nogueira, Thomas G Devlin, et al.

Journal article  |  2018  |  The Lancet Neurology

7T-fMRI: Faster temporal resolution yields optimal BOLD sensitivity for functional network imaging specifically at high spatial resolution

Peter E Yoo, Sam E John, Shawna Farquharson, Jon O Cleary, Yan T Wong, Amanda Ng, Claire B Mulcahy, David B Grayden, Roger J Ordidge, Nicholas L Opie, Terence J O'Brien, Thomas J Oxley, Bradford A Moffat

Journal article  |  2018  |  NEUROIMAGE

The ovine motor cortex: A review of functional mapping and cytoarchitecture

Sam E John, Timothy JH Lovell, Nicholas L Opie, Stefan Wilson, Theodore C Scordas, Yan T Wong, Gil S Rind, Stephen Ronayne, Sebastien H Bauquier, Clive N May, David B Grayden, Terence J O'Brien, Thomas J Oxley

Journal article  |  2017  |  Neuroscience & Biobehavioral Reviews

Micro-CT and Histological Evaluation of an Neural Interface Implanted Within a Blood Vessel

Nicholas Lachlan Opie, Nicole R van der Nagel, Sam E John, Kirstan Vessey, Gil S Rind, Stephen M Ronayne, Erica L Fletcher, Clive N May, Terence J O'Brien, Thomas J Oxley

Journal article  |  2017  |  IEEE Transactions on Biomedical Engineering

A Minimally Invasive Endovascular Stent-Electrode Array for Chronic Recordings of Cortical Neural Activity

Thomas J Oxley, Nicholas L Opie, Sam E John, Gil S Rind, Stephen M Ronayne, Anthony N Burkitt, David B Grayden, Clive N May, Terence J O'Brien

Journal article  |  2017  |  Nature Communications

Chronic impedance spectroscopy of an endovascular stent-electrode array

Nicholas L Opie, Sam E John, Gil S Rind, Stephen M Ronayne, David B Grayden, Anthony N Burkitt, Clive N May, Terence J O'Brien, Thomas J Oxley

Journal article  |  2016  |  Journal of Neural Engineering

Development and Implementation of a Corriedale Ovine Brain Atlas for Use in Atlas-Based Segmentation

Kishan Andre Liyanage, Christopher Steward, Bradford Armstrong Moffat, Nicholas Lachlan Opie, Gil Simon Rind, Sam Emmanuel John, Stephen Ronayne, Clive Newton May, Terence John O'Brien, Marjorie Eileen Milne, Thomas James Oxley

Journal article  |  2016  |  PLOS ONE

The evolution of endovascular electroencephalography: historical perspective and future applications

Roberta K Sefcik, Nicholas L Opie, Sam E John, Christopher P Kellner, J Mocco, Thomas J Oxley

Journal article  |  2016  |  Neurosurgical Focus

Minimally invasive endovascular stent-electrode array for high-fidelity, chronic recordings of cortical neural activity

Thomas J Oxley, Nicholas L Opie, Sam E John, Gil S Rind, Stephen M Ronayne, Tracey L Wheeler, Jack W Judy, Alan J McDonald, Anthony Dornom, Timothy JH Lovell, Christopher Steward, David J Garrett, Bradford A Moffat, Elaine H Lui, Nawaf Yassi, Bruce CV Campbell, Yan T Wong, Kate E Fox, Ewan S Nurse, Iwan E Bennett, et al.

Journal article  |  2016  |  Nature biotechnology

Suitability of Nitinol Electrodes in Neural Prostheses such as Endovascular Neural Interfaces

Yan T Wong, Nicholas L Opie, Sam E John, Giulia Gerboni, Gil S Rind, Stephen M Ronayne, Kate E Fox, Thomas J Oxley, David B Grayden

Conference Proceedings  |  2016  |  2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

Feasibility of a Chronic, Minimally Invasive Endovascular Neural Interface

Nicholas L Opie, Gil S Rind, Sam E John, Stephen M Ronayne, David B Grayden, Anthony N Burkitt, Clive N May, Terence J O'Brien, Thomas J Oxley

Conference Proceedings  |  2016  |  2016 38TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)

Suprachoroidal electrical stimulation: effects of stimulus pulse parameters on visual cortical responses

Sam E John, Mohit N Shivdasani, Chris E Williams, John W Morley, Robert K Shepherd, Graeme D Rathbone, James B Fallon

Journal article  |  2013  |  JOURNAL OF NEURAL ENGINEERING

Experimental study of density segregation at end walls in a horizontal rotating cylinder saturated with fluid: friction to lubrication transition

Shakil Ahmed, Sam E John, Ilija D Sutalo, Guy Metcalfe, Kurt Liffman

Journal article  |  2012  |  Granular Matter

An automated system for rapid evaluation of high-density electrode arrays in neural prostheses

Sam E John, Mohit N Shivdasani, James Leuenberger, James B Fallon, Robert K Shepherd, Rodney E Millard, Graeme D Rathbone, Chris E Williams

Journal article  |  2011  |  Journal of Neural Engineering

Density segregation of granular material in a rotating cylindrical tumbler

Dale Hayter, Gerald Pereira, Kurt Liffman, Ben Aldham, Sam Johns, Ilija D Sutalo, Geoffrey Brooks, Paul Cleary, Guy Metcalfe

Conference Proceedings  |  2008  |  Proceedings of the Biomedical Applications of Micro- and Nanoengineering IV and Complex Systems