Researchers at the University of Alabama at Birmingham suggest that brainwave-sensing headsets, also known as EEG or electroencephalograph headsets, need better security after a study reveals hackers could guess a user's ...
Security
Jun 29, 2017
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Today at the VLSI circuits symposium (June 12-15, Honolulu), Imec presents a complete 700µW 8-channel active-electrode (AE)-based EEG monitoring system. The system, developed in collaboration with Panasonic, delivers ...
Electronics & Semiconductors
Jun 15, 2012
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0
A remote controlled helicopter has been flown through a series of hoops around a college gymnasium in Minnesota. It sounds like your everyday student project; however, there is one caveat… the helicopter was controlled ...
Engineering
Jun 4, 2013
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0
Scientists working at Korea University, Korea, and TU Berlin, Germany have developed a brain-computer control interface for a lower limb exoskeleton by decoding specific signals from within the user's brain.
Engineering
Aug 17, 2015
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2788
Systems able to process thoughts and translate them into a command to move objects are very useful for people who cannot speak or move, but have the disadvantage of causing mental fatigue. However, a Mexican researcher designed ...
Hi Tech & Innovation
May 14, 2014
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0
Researchers at the Max Planck Institute for Ornithology and the University of Lausanne have discovered that the sleeping patterns of baby birds are similar to that of baby mammals. What is more, the sleep of baby birds appears ...
Plants & Animals
Aug 2, 2013
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0
Electroencephalography (EEG) records the electrical signals produced by the brain using an array of electrodes placed on the scalp. Computers use an algorithm called common spatial pattern (CSP) to translate these signals ...
Computer Sciences
May 30, 2011
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0
(Phys.org) —Heide Pfutzner is getting favorable recognition as an artist who has produced skilled, accomplished abstract paintings with their colorful shapes in electric-like blues, reds, pinks, and yellows, Her admirers ...
We all know the feeling, the short, sharp shock of waking to the sound of an alarm clock. Whether the traditional clattering metal bells, the incessant beeping of digital or the dulcet tones of today's radio news reader. ...
Engineering
Oct 20, 2011
4
0
At the International Consumer Electronics Show (CES) taking place in Las Vegas, Nev. Jan. 9-12, 2018, imec and Holst Centre will demonstrate a prototype of an electroencephalogram (EEG) headset that can measure emotions and ...
Hardware
Jan 9, 2018
1
21
Electroencephalography (EEG) is the recording of electrical activity along the scalp. EEG measures voltage fluctuations resulting from ionic current flows within the neurons of the brain. In clinical contexts, EEG refers to the recording of the brain's spontaneous electrical activity over a short period of time, usually 20–40 minutes, as recorded from multiple electrodes placed on the scalp. In neurology, the main diagnostic application of EEG is in the case of epilepsy, as epileptic activity can create clear abnormalities on a standard EEG study. A secondary clinical use of EEG is in the diagnosis of coma, encephalopathies, and brain death. EEG used to be a first-line method for the diagnosis of tumors, stroke and other focal brain disorders, but this use has decreased with the advent of anatomical imaging techniques with high (<1 mm) spatial resolution like as MRI and CT. Despite limited spatial resolution, EEG continues to be a valuable tool for research and diagnosis, especially when millisecond-range temporal resolution (not possible with CT or MRI) is required.
Derivatives of the EEG technique include evoked potentials (EP), which involves averaging the EEG activity time-locked to the presentation of a stimulus of some sort (visual, somatosensory, or auditory). Event-related potentials (ERPs) refer to averaged EEG responses that are time-locked to more complex processing of stimuli; this technique is used in cognitive science, cognitive psychology, and psychophysiological research.
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