Archive for the ‘mind reading devices’ Category
__SPACER__ The image of someone wearing electrical sensors studded all over the head and face, to measure electrical brain activity is a cinematic staple for quackery yet it is actually grounded in genuinely useful science. shown here is a researcher wearing a particularly impressive array of EEG cap sensors, at the Vision and Cognitive Neuroscience Laboratory, McMaster University in Ontario.
__SPACER__ At the moment there are two options for scanning infants brains - ultrasound which is portable but less useful, and MRI which requires the patient to be really still, and therefore sedated if its an infant. This device promises the best of both worlds, being portable and high resolution, using Optical Tomography, i.e. shining lasers inside the head.
__SPACER__ Magnetoencephalography devices cn be used in addition to MRI to measure electrical brain activity via devices that clearly look like one is wearing a giant ice cream cone. The magnetic fields in the brain are around a million billionth of a Tesla, so these devices need to sit in room that are shielded from the earths magnetic fields.