Examination of nervous system mainly concentrates on its responses to a stimuli.The deeper part of examination is done by various types of imaging process as well as radiological process. As the cerebral blood flow and neuronal activation are coupled Functional magnetic resonance imaging technique can be used to detect brain activities. In case of brain injuries computed axial tomography can be used to detect the abnormalities. Cranial ultrasound can be used for babies to detect the problems regarding brain and premature birth and for adults it can be performed when the skull is opened for surgery as ultrasound cannot pass through bones.Positron emission tomography can detect early stages of alzheimer’s disease and parkinson’s disease. The neuromagnetic signals generated by the brain are extremely small which can be detected by the SQUID(superconducting quantum interference device) device and can amplify magnetic fields generated by neurons a few centimeters away from the sensors .MEG provides timing as well as spatial information about brain activity.
- Track 1-1 Functional Magnetic Resonance Imaging
- Track 2-2 Computed Axial Tomography
- Track 3-3 Cranial Ultrasound
- Track 4-4 Positron Emission Tomography
- Track 5-5 Magnetoencephalography