Brain Cells Electric (scalar) ElectroEncephaloGraphy (EEG) Range : µV

Slides:



Advertisements
Similar presentations
1. 2 Molecular nanomagnets as milestones for the study of low-dimensional magnetism: fundamental physics and applications magnetism: fundamental physics.
Advertisements

Temporal dynamics of spatial phase congruency sensitivity in human visual cortex Linda Henriksson 1,2, Aapo Hyvärinen 3 and Simo Vanni 1 1 Brain Research.
Electrophysiological approaches for examining “physiological” & “pathological” brain population (rhythmic) activities in rodent models Liang Zhang Toronto.
Basis of the M/EEG signal Evelyne Mercure & Bonnie Breining.
Electrophysiology. Electroencephalography Electrical potential is usually measured at many sites on the head surface More is sometimes better.
Induced Brain Waves by Binaural Beats: A Study on Numerosity.
What are we measuring with EEG and MEG James Kilner.
Electrophysiology.
Subdural Grid Intracranial electrodes typically cannot be used in human studies It is possible to record from the cortical surface Subdural grid on surface.
Electroencephalography The field generated by a patch of cortex can be modeled as a single equivalent dipolar current source with some orientation (assumed.
Electroencephalography and the Event-Related Potential
Frontal Lobes The Immune System A healthy brain and a healthy body.
Conditional Fuzzy C Means A fuzzy clustering approach for mining event-related dynamics Christos N. Zigkolis.
Center for Brain and Cognitive Science Mind Reading for Cognitive Systems Yong-Ho Lee Center for Brain & Cognitive Research Korea Research Institute of.
Neurons – Biological Digital Circuits
X-ray radiation passed thru object and onto a photographic plate.
IMAGING THE MIND Direct methods –Electrical activity (EEG, MEG) –Metabolic activity (EROS) Indirect methods –Changes in regional Cerebral Blood Flow (rCBF)
Non-destructive testing using magneto-resistive sensors David P. Pappas Quantum Devices Group National Institute of Standards and Technology Boulder, CO,
Magnetoencephalography (MEG)
A Portable Ultrasensitive SERF Atomic Magnetometer for Biomagnetic Measurements R Wyllie, 1 Z Li, 2 R Wakai, 3 N Proite, 1 P Cook, 1 T Walker 1 1 – Department.
BMI2 SS08 – Class 9 “EEG-MEG 1” Slide 1 Biomedical Imaging 2 Class 9 – Electric and Magnetic Field Imaging: Electroencephalography (EEG), Magnetoencephalography.
Pressure effect on electrical conductivity of Mott insulator “Ba 2 IrO 4 ” Shimizu lab. ORII Daisuke 1.
1 光電子分光でプローブする 遷移金属酸化物薄膜の光照射効果 Photo-induced phenomena in transition-metal thin films probed by photoemission spectroscopy T. Mizokawa, J.-Y. Son, J. Quilty,
STRATEGIES OF COGNITIVE NEUROSCIENCE The Coin of the Realm: correlations between psychological and neurophysiological events/structures Establishing two-way.
Cognition, Brain and Consciousness: An Introduction to Cognitive Neuroscience Edited by Bernard J. Baars and Nicole M. Gage 2007 Academic Press Chapter.
The Goal Use computers to aid physicians in diagnosis of neurological diseases, particularly epilepsy Detect pathological events in real time Currently,
Phrenology Wrong!. Outer Surface of Human Brain Gray Matter = Neuron cell bodies & dendrites White Matter = Myelin (=fat)- covered axons Cortex = Outer.
Spin Valves: - larger MR values then the AMR-based devices - exchange energy should be large (> 0.2 erg/cm -2 ) - blocking temperature > 300C - effective.
Spintronics. Properties of Electron Electron has three properties. Charge Mass Spin.
Collaborations: L. Santos (Hannover) Former members: R. Chicireanu, Q. Beaufils, B. Pasquiou, G. Bismut A.de Paz (PhD), A. Sharma (post-doc), A. Chotia.
Electroencephalography Collecting and Analyzing Data: 101
Group D: Malkesh Agheda and Belinda Stiles
1 High Sensitivity Magnetic Field Sensor Technology David P. Pappas National Institute of Standards & Technology Boulder, CO.
Monday, January 31, 2011 A few more instructive slides related to GMR and GMR sensors.
Six seconds of data, recorded 5 minutes apart. Electroencephalography First recording of electrical fields of animals, Caton (1875); humans, Berger.
Magnetic Moments in Amorphous Semiconductors Frances Hellman, University of California, Berkeley, DMR This project looks at the effect of magnetic.
A Portable Ultrasensitive SERF Atomic Magnetometer for Biomagnetic Measurements R Wyllie, 1 Z Li, 2 R Wakai, 3 N Proite, 1 P Cook, 1 T Walker 1 1 – Department.
1 Psychology 304: Brain and Behaviour Lecture 2. 2 Research Methods 1.What techniques do biological psychologists use to assess the structure and function.
Magnetoencephalography Matt Martin 09/17/2004 APPM 4380.
1 Psychology 304: Brain and Behaviour Lecture 4. 2 Research Methods and The Structure of the Nervous System 2. What are the primary divisions of the nervous.
K. Gireesan1, T. S. Radhakrishnan1, Joseph Bensigh3, S
Superconductivity, Josephson Junctions, and squids
SPINTRONICS Submitted by: K Chinmay Kumar N/09/
Electrophysiology. Neurons are Electrical Remember that Neurons have electrically charged membranes they also rapidly discharge and recharge those membranes.
Magnetoencephalography (MEG) and its role
EEG Definitions EEG1: electroencephalogram—i.e., the “data”
Modeling of Failure Probability and Statistical Design of Spin-Torque Transfer MRAM (STT MRAM) Array for Yield Enhancement Jing Li, Charles Augustine,
Introduction to ERPs.
In Vivo Magnetic Recording of Neuronal Activity
Fundamentals of Sensation and Perception
Fig. 1 from Long-term reliable physically unclonable function based on oxide tunnel barrier breakdown on two-transistors two-magnetic-tunnel-junctions.
The Swarm D NanoMagSat project Latest News
BioSignal Processing.
Spintronics By C.ANIL KUMAR (07AG1A0411).
Preparation for 3820 Demonstration
ALTERATIONS IN THE CENTRAL/PERIPHERAL NERVOUS SYSTEM
The Brain Tools of Discovery Older Brain Structures The Limbic System
Dynamic Causal Modelling for M/EEG
Comparison of imaging techniques
15. Cortical gamma-band activity during auditory processing: evidence from human magnetoencephalography studies
In Vivo Magnetic Recording of Neuronal Activity
Functional Neuroimaging: a window on the working human brain
Record your QUESTIONS as your read.
Fig. 1 Sensing scheme with an atomic spin sensor.
Helix B2-B2 neuron pairs form unidirectional and bidirectional chemical synapses and exhibit short-term plasticity in vitro. Helix B2-B2 neuron pairs form.
After 4 s of raw magnetoencephalography data (two channels contain obvious artefacts), the door to the magnetically shielded room is opened during recording.
In Vivo Magnetic Recording of Neuronal Activity
Leptin-mediated electrophysiological activation of POMC neurons.
General scheme of the events triggered by C
Information Storage and Spintronics 18
Presentation transcript:

Spintronics sensors for biomagnetism at local scale Myriam Pannetier Lecoeur – SPEC CEA Saclay Brain Cells Electric (scalar) ElectroEncephaloGraphy (EEG) Range : µV Electrophysiology Range : mV Magnetic (vectorial) MagnetoEncephaloGraphy (MEG) Range : f T Magnetophysiology Range : pT-nT digitaltrends.com supraconductivite.fr

New generation of probes for in vivo recordings Enhance the sensitivity using Tunnel Magneto-Resistance sensor Apply low frequency noise reduction scheme Measure single event on real time. L. Caruso et al. Submitted Other subjects in our group: “Spintronic with antiferromagnetic insulators” JB Moussy / M. Viret “New phenomena emerging from strong spin-orbit coupling: the case of iridates” JB Moussy / D. Colson