An EM Transistor/Memristor (EMTM) Based Brain-Processor Interface
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1
Independent/Private, Ukraine
To date, a wide range of neural electrodes have been used in basic neuroscience and neural prosthetic research (brain machine interfaces). Polymeric microprobes have received a great deal of attention owing to their simple fabrication process, flexibility and biocompatibility. Implantable neural probes for neuroscience and brain machine interfaces are generally preferred to have a minimum footprint as possible to minimize neural damage. Alternatively, a superconducting field effect transistor (SuFET) based neurotransducer with carbon nanotubes (CNT) or pickup coil (PC) kind of input circuit for the nerve and neuron impulse has been designed. A nanoSuFET with a high-temperature superconducting channel is introduced into the nerve fibre or brain tissue for transducing their signals in both directions.
A further step should be synthesis of the said two methods in order to develop the external (non-implantable) brain machine interface. Human being from whom electromagnetic (EM) signals are to be extracted is the subject, which is attached with EM sensor and the raw EM signal is acquired. The EM sensors are surface PCs, which are used in regular configuration where PCs with a small distance between each other are positioned within the helmet type surface to pick up the local signals within the place of interest. The problem of sensing the EM signal for amplification/switching/memory it with a speed of light in a single passive solid-state device (EMTM) has been advanced. The said problem in the advanced method is solving by application of ferroelectric or ferroelectromagnetic (FE or FEM) crystals which are controlled by an electric or magnetic fields (EF or MF) respectively. Also controlling the device by both an electric and MF allows matching it with the previous stages.
A memristor is a 2-terminal thin-film electrical circuit element that changes its resistance depending on the total amount of charge that flows through the device. This property arises naturally in systems for which the electronic and dopant equations of motion in a semiconductor are coupled in the presence of an applied electric field. Our EMT device can expand this ability by an applied MF. The memristors were simply used as 2-state switches (ON and OFF, or switch closed and opened, respectively); logical AND is represented by multiplication and OR by addition. A proof-of-principles are provide validation that the same devices as EMTMs in a nanoscale circuit can be configured to act as logic, signal routing and memory, and the circuit can even reconfigure itself. The term "magnetoencephalography (MEG) sensor array" will mean the collection of EMTMs. Rejection of environmental noise can be improved by measuring a MF difference, rather than the field itself. Such flux transformers are referred to as gradiometers (i.e. the field difference approximates a component of the field gradient tensor). The radial gradiometer detects the radial gradient of a radial MF (radial with respect to the surface of the head). These elements are set out into the square or rectangular matrices and are included in further mathematical operations.
Keywords:
EM Transistor/Memristor
Conference:
Neuroinformatics 2009, Pilsen, Czechia, 6 Sep - 8 Sep, 2009.
Presentation Type:
Poster Presentation
Topic:
Brain machine interface
Citation:
Sklyar
R
(2019). An EM Transistor/Memristor (EMTM) Based Brain-Processor Interface.
Front. Neuroinform.
Conference Abstract:
Neuroinformatics 2009.
doi: 10.3389/conf.neuro.11.2009.08.052
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Received:
22 May 2009;
Published Online:
09 May 2019.
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Correspondence:
Dr. Rostyslav Sklyar, Independent/Private, Lviv, Ukraine, r_sklyar@hotmail.com