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Grasp Control & BMI

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Grasp Related Neuronal Activity in Monkey and Human and Its Applicability in BMI

The complexity and precision of human hand control is staggering and unravelled, yet, its neuronal control is not well understood. Loss of this ability has devastating consequences for a human’s daily life. Restoring this ability... ver más

31/05/2014

UNIVERSITY COLLEGE...

209K€

Presupuesto del proyecto: 209K€

Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

Fecha límite participación Sin fecha límite de participación.

Financiación concedida El organismo FP7 notifico la concesión del proyecto el día 2014-05-31 No tenemos la información de la convocatoria

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1 Participantes

UNIVERSITY COLLEGE LONDON

209.09K€ | Lider

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Líder del proyecto

UNIVERSITY COLLEGE LONDON No se ha especificado una descripción o un objeto social para esta compañía.

Presupuesto del proyecto 209K€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto The complexity and precision of human hand control is staggering and unravelled, yet, its neuronal control is not well understood. Loss of this ability has devastating consequences for a human’s daily life. Restoring this ability and, thus, bringing relief to the patient’s condition should be an important aim of science. We propose an interdisciplinary investigation of both the neuronal activity controlling skilled hand movements and how this activity can be used in a Brain-Machine Interface (BMI) to control hand postures suitable for grasp of different everyday objects. For example, relevant patients rank the loss of skilled grasp as one of the most debilitating features of their injury (Anderson, 2004). Thus, grasp BMIs are of great importance, but not yet available. We will investigate grasp-related neuronal activity in monkeys and human volunteers based on recordings of (i) intracortical single-unit activity (SUA) and local field potentials (LFP) through multiple electrodes in monkey primary motor cortex (M1), ventral pre-motor cortex (PMv) and boundary areas between M1 and PMv, and (ii) non-invasive human magnetoencephalograms (MEG). Recent studies have shown grasp-specific neuronal activity in SUA and LFP recorded in monkey. We will record grasp-related activity simultaneously at various sites ranging from PMv to M1. Central points are the investigation of the spatial distribution of this activity across motor areas and different cortical laminae, the long-term stability and how this activity is modulated by novel motor tasks. We will also assess how these points affect the decoding of different grasps in a potential BMI and whether human MEG shows similar grasp specificity during execution and imagination of grasp, which is significant for patients controlling a BMI by imagining performance of different actions. The ultimate goal is precise, dexterous, real-time BMI grasp control of hand prostheses; our project represents a first step in this direction.

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