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- Daniel Richard Leff, Felipe Orihuela-Espina, +4 authors Guang-Zhong Yang
- NeuroImage
- 2011
Functional near infrared spectroscopy (fNIRS) is an emerging tool for non-invasively monitoring the haemodynamic response to brain activation. The technique has been widely adopted to investigate… (More)
- Daniel Richard Leff, Clare E. Elwell, +4 authors Guang-Zhong Yang
- NeuroImage
- 2008
To investigate neurocognitive mechanisms associated with task-related expertise development, this paper investigates serial changes in prefrontal activation patterns using functional near infrared… (More)
- Luis Enrique Sucar, Felipe Orihuela-Espina, Roger Luis Velázquez, David J. Reinkensmeyer, Ronald S. Leder, Jorge Hernández-Franco
- IEEE Transactions on Neural Systems and…
- 2014
Virtual reality platforms capable of assisting rehabilitation must provide support for rehabilitation principles: promote repetition, task oriented training, appropriate feedback, and a motivating… (More)
- Felipe Orihuela-Espina, Donna Rosene Leff, David R. C. James, Ara Darzi, Guang Yang
- Physics in medicine and biology
- 2010
Functional near infrared spectroscopy (fNIRS) is a rapidly developing neuroimaging modality for exploring cortical brain behaviour. Despite recent advances, the quality of fNIRS experimentation may… (More)
Monitoring expertise development in surgery is likely to benefit from evaluations of cortical brain function. Brain behaviour is dynamic and nonlinear. The aim of this paper is to evaluate the… (More)
Learning to perform Minimally Invasive Surgery (MIS) requires considerable attention, concentration and spatial ability. Theoretically, this leads to activation in executive control (prefrontal) and… (More)
- Iain B. Styles, A. Calcagni, Ela Claridge, Felipe Orihuela-Espina, J. M. Gibson
- Medical Image Analysis
- 2006
We have developed a new technique for extracting histological parameters from multi-spectral images of the ocular fundus. The new method uses a Monte Carlo simulation of the reflectance of the fundus… (More)
- Felipe Orihuela-Espina, Isabel Fernández del Castillo, +5 authors Luis Enrique Sucar
- Topics in stroke rehabilitation
- 2013
BACKGROUND
Gesture Therapy is an upper limb virtual reality rehabilitation-based therapy for stroke survivors. It promotes motor rehabilitation by challenging patients with simple computer games… (More)
- Mikael Hans Sodergren, Felipe Orihuela-Espina, James Clark, J. Derek Teare, Guang-Zhong Yang, Ara Darzi
- Annals of surgery
- 2010
OBJECTIVE
Using eye-tracking technology, we aim to examine if there are common patterns of visual attention strategies employed by surgeons which are associated with a greater chance of successful… (More)
- George P. Mylonas, Ka-Wai Kwok, +4 authors Guang-Zhong Yang
- Medical Image Analysis
- 2012
The success of MIS is coupled with an increasing demand on surgeons' manual dexterity and visuomotor coordination due to the complexity of instrument manipulations. The use of master-slave surgical… (More)